Remaining works of config-api refactor (#13045)

* * Move Configurator & Factory to common

* * Move ServiceNameMapping & MappingListener & MappingChangedEvent to common
* Add ServiceNameMappingUtils

* * Move ClusterUtils to common

* * Add ClusterInvokerFactory

* * Move InterfaceConfigValidator & MethodConfigValidator to cluster
* Move ConfigCenterConfigValidator to configcenter-api

* * Move DefaultMetricsServiceExporter to metrics-default

* * Move Lifecycles

* * Fix a part cyclic dependencies problem

* * Move ApplicationPostOfflineLifecycle to dubbo-registry

* * Fix a part cycle dependencies problem

* * Fix ut about MetadataReportInstance & Move Prometheus ut to metrics
* Move ClusterInvokerFactory to rpc-api

* * Update config-api pom

* * Add license

* * Fix module version of metadata-api

* * Move some MetadataService API to registry-api

* Add interface ApplicationMetadataUpdater to reduce the depedencies of  dubbo-metadata on dubbo-registry

* Temporary remove some tests that caused cyclic reference

* Temporary remove some tests that caused cyclic reference

* Add license

* Add test-config module for test

* Add license

* Fix pom

* Tests fix

* Pom fix

* Fix a bean registry problem

* Move config-test to dubbo-config

* Fix pom

* Add removed test

* Add removed test

* Remove application.yaml

* Fix version

* Fix codestyle

* Fix spi file

* Fix dependencies of dubbo-demo-native

* Fix dependencies of dubbo-demo-native

* Fix dependencies of dubbo-demo-native

* Fix dependencies of dubbo-demo-native

* Fix dependencies of dubbo-demo-native

* Fix dependencies of dubbo-demo-native

* Fix dependencies of dubbo-rpc

* Fix dependencies of dubbo-rpc-rest

* Fix dependencies of dubbo-rpc-rest

* Fix dependencies of dubbo-rpc-rest

* Fix dependencies of dubbo-rpc-rest

* Fix spi file of ApplicationDeployListener

* Fix test about exporter count

* Fix test about exporter count

* Update pom

* Add test msg

* Change MetadataUpdater init process

* Change MetadataUpdater init process

* Change MetadataUpdater init process

* Change MetadataUpdater init process

* Fix dependencies of dubbo-rpc-rest

* Using lifecycle instead of ApplicationDeployListener

* Update doc

* Update log

* Fix pom of dubbo-config-spring & dubbo-plugin-security & dubbo-rpc-rest

* Add scope for ApplicationLifecycle

* Fix pom of dubbo-config-spring

* Fix ut of rpc-rest(PR#13087)

* Fix bug of DefaultClusterInvokerFactory

* Fix bug of DefaultClusterInvokerFactory

* Fix bug of DefaultClusterInvokerFactory

* Fix bug of ServiceInstanceCustomizer

* Add dubbo-config-test to ignore list

* Code style & bug fix

* Remove unused import

* Add zookeeper-curator for test

* Test zookeeper version

* Test zookeeper version

* Test fix zookeeper

* Remove unnecessary modification

* Add test props

* Remove unused dependencies

* Code style fix

* Remove unnecessary dependencies & Code style fix

* Fix dependencies

* Update pom.xml

* Add dubbo-config-test as ignored

* Refactor ClusterInvokerFactory

* Refactor ClusterInvokerFactory

* Refactor ClusterInvokerFactory

.artifacts

@@ -19,6 +19,7 @@
 dubbo
 dubbo-auth
 dubbo-apache-release
+dubbo-all-shaded
 dubbo-bom
 dubbo-build-tools
 dubbo-cluster
@@ -28,7 +29,11 @@ dubbo-compiler
 dubbo-config
 dubbo-config-api
 dubbo-config-spring
+dubbo-config-spring6
+dubbo-config-test
 dubbo-configcenter
+dubbo-configcenter-api
+dubbo-configcenter-file
 dubbo-configcenter-apollo
 dubbo-configcenter-nacos
 dubbo-configcenter-zookeeper
@@ -49,6 +54,7 @@ dubbo-kubernetes
 dubbo-maven-plugin
 dubbo-metadata
 dubbo-metadata-api
+dubbo-metadata-rest
 dubbo-metadata-definition-protobuf
 dubbo-metadata-processor
 dubbo-metadata-report-nacos
@@ -61,11 +67,13 @@ dubbo-metrics-metadata
 dubbo-metrics-prometheus
 dubbo-metrics-registry
 dubbo-metrics-config-center
+dubbo-metrics-netty
+dubbo-metrics-event
 dubbo-monitor
 dubbo-monitor-api
+dubbo-monitor-common
 dubbo-monitor-default
 dubbo-native
-dubbo-native-plugin
 dubbo-parent
 dubbo-plugin
 dubbo-qos
@@ -82,6 +90,7 @@ dubbo-remoting-api
 dubbo-remoting-http
 dubbo-remoting-netty
 dubbo-remoting-netty4
+dubbo-remoting-zookeeper-api
 dubbo-remoting-zookeeper
 dubbo-remoting-zookeeper-curator5
 dubbo-rpc
@@ -102,16 +111,35 @@ dubbo-spring-boot-actuator-compatible
 dubbo-spring-boot-autoconfigure
 dubbo-spring-boot-autoconfigure-compatible
 dubbo-spring-boot-compatible
-dubbo-spring-boot-observability-starters
-dubbo-spring-boot-observability-autoconfigure
-dubbo-spring-boot-tracing-brave-zipkin-starter
-dubbo-spring-boot-tracing-otel-zipkin-starter
-dubbo-spring-boot-tracing-otel-otlp-starter
-dubbo-spring-boot-observability-starter
+dubbo-observability-spring-boot-starters
+dubbo-observability-spring-boot-autoconfigure
+dubbo-tracing-brave-zipkin-spring-boot-starter
+dubbo-tracing-otel-zipkin-spring-boot-starter
+dubbo-tracing-otel-otlp-spring-boot-starter
+dubbo-observability-spring-boot-starter
 dubbo-spring-boot-starter
 dubbo-spring-boot-starters
+dubbo-spring-boot-interceptor
 dubbo-nacos-spring-boot-starter
 dubbo-zookeeper-spring-boot-starter
 dubbo-zookeeper-curator5-spring-boot-starter
+dubbo-sentinel-spring-boot-starter
+dubbo-seata-spring-boot-starter
 dubbo-spring-security
+dubbo-tracing
 dubbo-xds
+dubbo-plugin-cluster-mergeable
+dubbo-plugin-mock
+dubbo-plugin-router-script
+dubbo-plugin-router-mesh
+dubbo-plugin-router-condition
+dubbo-plugin-router-tag
+dubbo-plugin-loadbalance-adaptive
+dubbo-plugin-access-log
+dubbo-plugin-tps
+dubbo-plugin-token
+dubbo-plugin-generic-invoke
+dubbo-plugin-context
+dubbo-plugin-classloader-filter
+dubbo-plugin-proxy-bytebuddy
+dubbo-plugin-qos-trace

.asf.yaml

@@ -55,5 +55,3 @@ github:
     - http
     - grpc
     - web
-  collaborators:
-    - oxsean

.editorconfig

@@ -19,55 +19,13 @@
 # top-most EditorConfig file
 root = true
 
+# Unix-style newlines with a newline ending every file
 [*]
 charset = utf-8
 end_of_line = lf
-indent_size = 4
-indent_style = space
-tab_width = 4
-max_line_length = 120
 insert_final_newline = true
-trim_trailing_whitespace = true
 
-[*.java]
-ij_java_continuation_indent_size = 8
-ij_java_keep_control_statement_in_one_line = false
-ij_java_for_brace_force = always
-ij_java_if_brace_force = always
-ij_java_keep_first_column_comment = false
-ij_java_keep_line_breaks = false
-ij_java_keep_simple_blocks_in_one_line = true
-ij_java_keep_simple_classes_in_one_line = true
-ij_java_keep_simple_lambdas_in_one_line = true
-ij_java_keep_simple_methods_in_one_line = true
-ij_java_keep_blank_lines_in_code = 1
-ij_java_keep_blank_lines_in_declarations = 1
-ij_java_class_count_to_use_import_on_demand = 999
-ij_java_names_count_to_use_import_on_demand = 999
-ij_java_imports_layout = org.apache.dubbo.**, |, javax.**, |, java.**, |, *, |, $*
-ij_java_insert_inner_class_imports = true
-ij_java_space_before_array_initializer_left_brace = true
-ij_java_method_parameters_new_line_after_left_paren = true
-ij_java_wrap_comments = true
-ij_java_wrap_long_lines = true
-ij_java_enum_constants_wrap = split_into_lines
-ij_java_method_call_chain_wrap = split_into_lines
-ij_java_method_parameters_wrap = on_every_item
-ij_java_extends_list_wrap = on_every_item
-ij_java_extends_keyword_wrap = normal
-ij_java_binary_operation_wrap = normal
-ij_java_binary_operation_sign_on_next_line = true
-
-[*.json]
-tab_width = 2
-
-[*.{yml,yaml}]
-indent_size = 2
-
-[*.xml]
-ij_xml_attribute_wrap = off
-ij_xml_text_wrap = off
-ij_xml_keep_blank_lines = 1
-
-[pom.xml]
-indent_size = 2
+# 4 space indentation
+[*.{java,xml}]
+indent_style = space
+indent_size = 4

.github/DISCUSSION_TEMPLATE/general.yml

@@ -1,88 +0,0 @@
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-title: "[General][Java SDK (Component)] xxx"
-body:
-- type: markdown
-  attributes:
-    value: |
-      <img src="https://dubbo.apache.org/imgs/nav_logo2.png" alt="Dubbo logo" height="90px" align="right" />
-
-      Thank you for finding the time to share your idea! We really appreciate the community efforts to improve Dubbo.
-
-      If you need to report a security issue, please visit [our security policy](https://github.com/apache/dubbo/security/policy).
-
-      **Dubbo is open for world wide collaboration, please make sure that all the content you provide is in English.**
-      Remember that non-English idea is quite not friendly for everyone, and might unable to get the response!
-
-- type: checkboxes
-  attributes:
-    label: Pre-check
-    options:
-      - label: >
-          I am sure that all the content I provide is in English.
-        required: true
-
-- type: dropdown
-  attributes:
-    label: Apache Dubbo Component
-    description: |
-      What Apache Dubbo component are you using? Apache Dubbo has many subprojects, please make sure
-      to choose the component that you want to ask questions about.
-    multiple: false
-    options:
-      - "Java SDK (apache/dubbo)"
-      - "Java Samples (apache/dubbo-samples)"
-      - "Java Integration Cases (apache/dubbo-integration-cases)"
-      - "Java SPI Extensions (apache/dubbo-spi-extensions)"
-      - "Java Benchmark (apache/dubbo-benchmark)"
-      - "Go SDK (apache/dubbo-go)"
-      - "Go Samples (apache/dubbo-go-samples)"
-      - "Rust SDK (apache/dubbo-rust)"
-      - "Node.js SDK (apache/dubbo-js)"
-      - "Python SDK (apache/dubbo-python)"
-      - "Kubernetes Integration (apache/dubbo-kubernetes)"
-      - "Pixiu Gateway (apache/dubbo-go-pixiu)"
-      - "Pixiu Gateway Samples (apache/dubbo-go-pixiu-samples)"
-      - "Admin (apache/dubbo-admin)"
-      - "Website (apache/dubbo-website)"
-      - "Awesome (apache/dubbo-awesome)"
-      - "Initializer (apache/dubbo-intializer)"
-      - "Others (apache/dubbo-xxx)"
-  validations:
-    required: true
-
-- type: textarea
-  attributes:
-    label: Details
-    description: Anything you want to ask?
-  validations:
-    required: true
-
-- type: checkboxes
-  attributes:
-    label: Code of Conduct
-    description: The Code of Conduct helps create a safe space for everyone. We require that everyone agrees to it.
-    options:
-      - label: >
-          I agree to follow this project's
-          [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
-        required: true
-
-- type: markdown
-  attributes:
-    value: "Thanks for completing our form!"

.github/DISCUSSION_TEMPLATE/question.yml

@@ -1,88 +0,0 @@
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-title: "[Q/A][Java SDK (Component)] xxx"
-body:
-- type: markdown
-  attributes:
-    value: |
-      <img src="https://dubbo.apache.org/imgs/nav_logo2.png" alt="Dubbo logo" height="90px" align="right" />
-
-      Thank you for finding the time to report the question! We really appreciate the community efforts to improve Dubbo.
-
-      If you need to report a security issue, please visit [our security policy](https://github.com/apache/dubbo/security/policy).
-
-      **Dubbo is open for world wide collaboration, please make sure that all the content you provide is in English.**
-      Remember that non-English question is quite not friendly for everyone, and might unable to get the response!
-
-- type: checkboxes
-  attributes:
-    label: Pre-check
-    options:
-      - label: >
-          I am sure that all the content I provide is in English.
-        required: true
-
-- type: dropdown
-  attributes:
-    label: Apache Dubbo Component
-    description: |
-      What Apache Dubbo component are you using? Apache Dubbo has many subprojects, please make sure
-      to choose the component that you want to ask questions about.
-    multiple: false
-    options:
-      - "Java SDK (apache/dubbo)"
-      - "Java Samples (apache/dubbo-samples)"
-      - "Java Integration Cases (apache/dubbo-integration-cases)"
-      - "Java SPI Extensions (apache/dubbo-spi-extensions)"
-      - "Java Benchmark (apache/dubbo-benchmark)"
-      - "Go SDK (apache/dubbo-go)"
-      - "Go Samples (apache/dubbo-go-samples)"
-      - "Rust SDK (apache/dubbo-rust)"
-      - "Node.js SDK (apache/dubbo-js)"
-      - "Python SDK (apache/dubbo-python)"
-      - "Kubernetes Integration (apache/dubbo-kubernetes)"
-      - "Pixiu Gateway (apache/dubbo-go-pixiu)"
-      - "Pixiu Gateway Samples (apache/dubbo-go-pixiu-samples)"
-      - "Admin (apache/dubbo-admin)"
-      - "Website (apache/dubbo-website)"
-      - "Awesome (apache/dubbo-awesome)"
-      - "Initializer (apache/dubbo-intializer)"
-      - "Others (apache/dubbo-xxx)"
-  validations:
-    required: true
-
-- type: textarea
-  attributes:
-    label: Details
-    description: Anything you want to know?
-  validations:
-    required: true
-
-- type: checkboxes
-  attributes:
-    label: Code of Conduct
-    description: The Code of Conduct helps create a safe space for everyone. We require that everyone agrees to it.
-    options:
-      - label: >
-          I agree to follow this project's
-          [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
-        required: true
-
-- type: markdown
-  attributes:
-    value: "Thanks for completing our form!"

.github/ISSUE_TEMPLATE/1-bug.yml

@@ -1,142 +0,0 @@
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-name: Bug Report
-description: File a bug report
-title: "[Bug] "
-labels: ["type/need-triage", "component/need-triage"]
-projects: ["apache/337"]
-body:
-- type: markdown
-  attributes:
-    value: |
-      <img src="https://dubbo.apache.org/imgs/nav_logo2.png" alt="Dubbo logo" height="90px" align="right" />
-
-      Thank you for finding the time to report the problem! We really appreciate the community efforts to improve Dubbo.
-
-      Please make sure what you are reporting is indeed a bug with reproducible steps, if you want to ask questions
-      or share ideas, please [subscribe to our mailing list](mailto:dev-subscribe@dubbo.apache.org) and sent
-      emails to [our mailing list](mailto:dev@dubbo.apache.org), you can also head to our
-      [Discussion](https://github.com/apache/dubbo/discussions) tab.
-
-      If you need to report a security issue, please visit [our security policy](https://github.com/apache/dubbo/security/policy).
-
-      **Dubbo is open for world wide collaboration, please make sure that all the content you provide is in English.**
-      Remember that non-English issues is quite not friendly for everyone, and might unable to get the response!
-
-- type: checkboxes
-  attributes:
-    label: Pre-check
-    options:
-      - label: >
-          I am sure that all the content I provide is in English.
-        required: true
-
-- type: checkboxes
-  attributes:
-    label: Search before asking
-    description: >
-      Please make sure to search in the [issues](https://github.com/apache/dubbo/issues?q=is%3Aissue) first to see
-      whether the same issue was reported already.
-    options:
-      - label: >
-          I had searched in the [issues](https://github.com/apache/dubbo/issues?q=is%3Aissue) and found no similar
-          issues.
-        required: true
-
-- type: dropdown
-  attributes:
-    label: Apache Dubbo Component
-    description: |
-      What Apache Dubbo component are you using? Apache Dubbo has many subprojects, please make sure
-      to choose the component that you want to ask questions about.
-    multiple: false
-    options:
-      - "Java SDK (apache/dubbo)"
-      - "Java Samples (apache/dubbo-samples)"
-      - "Java Integration Cases (apache/dubbo-integration-cases)"
-      - "Java SPI Extensions (apache/dubbo-spi-extensions)"
-      - "Java Benchmark (apache/dubbo-benchmark)"
-  validations:
-    required: true
-
-- type: textarea
-  attributes:
-    label: Dubbo Version
-    description: "Which Dubbo version, JDK version and operating system did you use?"
-    placeholder: "Example: Dubbo Java 3.2.12, OpenJDK 1.8, Ubuntu 20.04"
-  validations:
-    required: true
-
-- type: textarea
-  attributes:
-    label: Steps to reproduce this issue
-    description: >
-      Describe how to reproduce this issue.If you are not able to provide a reproducible case,
-      please open a [Discussion](https://github.com/apache/dubbo/discussions) instead.
-    placeholder: >
-      Please provide the context in which the problem occurred and explain what happened.
-      A [GitHub address] would be helpful for maintainers to reproduce the problem.
-  validations:
-    required: true
-
-- type: textarea
-  attributes:
-    label: What you expected to happen
-    description: What do you think went wrong?
-    placeholder: >
-      Please explain why you think the behaviour is erroneous. It is extremely helpful if you copy and paste
-      the fragment of logs showing the exact error messages or wrong behaviour and screenshots for
-      UI problems. You can include files by dragging and dropping them here.
-
-      **NOTE**: please copy and paste texts instead of taking screenshots of them for easy future search.
-  validations:
-    required: true
-
-- type: textarea
-  attributes:
-    label: Anything else
-    description: Anything else we need to know?
-    placeholder: >
-      How often does this problem occur? (Once? Every time? Only when certain conditions are met?)
-      Any relevant logs to include? Put them here inside fenced
-      ``` ``` blocks or inside a collapsable details tag if it's too long:
-      <details><summary>x.log</summary> lots of stuff </details>
-
-- type: checkboxes
-  attributes:
-    label: Are you willing to submit a pull request to fix on your own?
-    description: >
-      This is absolutely not required, but we are happy to guide you in the contribution process
-      especially if you already have a good understanding of how to implement the fix.
-      Dubbo is a totally community-driven project and we love to bring new contributors in.
-    options:
-      - label: Yes I am willing to submit a pull request on my own!
-
-- type: checkboxes
-  attributes:
-    label: Code of Conduct
-    description: The Code of Conduct helps create a safe space for everyone. We require that everyone agrees to it.
-    options:
-      - label: >
-          I agree to follow this project's
-          [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
-        required: true
-
-- type: markdown
-  attributes:
-    value: "Thanks for completing our form!"

.github/ISSUE_TEMPLATE/2-feature.yml

@@ -1,106 +0,0 @@
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-name: Feature Request
-description: Create a Feature Request for Dubbo
-title: "[Feature] "
-labels: ["type/need-triage", "component/need-triage"]
-projects: ["apache/337"]
-body:
-- type: markdown
-  attributes:
-    value: |
-      <img src="https://dubbo.apache.org/imgs/nav_logo2.png" alt="Dubbo logo" height="90px" align="right" />
-
-      Thank you for finding the time to propose new feature!
-
-      We really appreciate the community efforts to improve Dubbo.
-
-      **Dubbo is open for world wide collaboration, please make sure that all the content you provide is in English.**
-      Remember that non-English issues is quite not friendly for everyone, and might unable to get the response!
-
-- type: checkboxes
-  attributes:
-    label: Pre-check
-    options:
-      - label: >
-          I am sure that all the content I provide is in English.
-        required: true
-
-- type: checkboxes
-  attributes:
-    label: Search before asking
-    description: >
-      Please make sure to search in the [issues](https://github.com/apache/dubbo/issues?q=is%3Aissue) first to see
-      whether the same feature was requested already.
-    options:
-      - label: >
-          I had searched in the [issues](https://github.com/apache/dubbo/issues?q=is%3Aissue) and found no similar
-          feature requirement.
-        required: true
-
-- type: dropdown
-  attributes:
-    label: Apache Dubbo Component
-    description: |
-      What Apache Dubbo component are you using? Apache Dubbo has many subprojects, please make sure
-      to choose the component that you want to ask questions about.
-    multiple: false
-    options:
-      - "Java SDK (apache/dubbo)"
-      - "Java Samples (apache/dubbo-samples)"
-      - "Java Integration Cases (apache/dubbo-integration-cases)"
-      - "Java SPI Extensions (apache/dubbo-spi-extensions)"
-      - "Java Benchmark (apache/dubbo-benchmark)"
-  validations:
-    required: true
-
-- type: textarea
-  attributes:
-    label: Descriptions
-    description: A short description of your feature
-  validations:
-    required: true
-
-- type: textarea
-  attributes:
-    label: Related issues
-    description: Is there currently another issue associated with this?
-
-- type: checkboxes
-  attributes:
-    label: Are you willing to submit a pull request to fix on your own?
-    description: >
-      This is absolutely not required, but we are happy to guide you in the contribution process
-      especially if you already have a good understanding of how to implement the feature.
-      Dubbo is a totally community-driven project and we love to bring new contributors in.
-    options:
-      - label: Yes I am willing to submit a pull request on my own!
-
-- type: checkboxes
-  attributes:
-    label: Code of Conduct
-    description: The Code of Conduct helps create a safe space for everyone. We require that everyone agrees to it.
-    options:
-      - label: >
-          I agree to follow this project's
-          [Code of Conduct](https://www.apache.org/foundation/policies/conduct)
-        required: true
-
-- type: markdown
-  attributes:
-    value: "Thanks for completing our form!"

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,39 @@
+---
+name: Bug Report
+about: Report a bug in Dubbo
+title: ''
+labels: type/bug
+assignees: ''
+
+---
+<!-- If you need to report a security issue please visit https://github.com/apache/dubbo/security/policy -->
+
+- [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
+
+### Environment
+
+* Dubbo version: xxx
+* Operating System version: xxx
+* Java version: xxx
+
+### Steps to reproduce this issue
+
+1. xxx
+2. xxx
+3. xxx
+
+Pls. provide [GitHub address] to reproduce this issue.
+
+### Expected Behavior
+
+<!-- What do you expect from the above steps？-->
+
+### Actual Behavior
+
+<!-- What actually happens? -->
+
+If there is an exception, please attach the exception trace:
+
+```
+Just put your stack trace here!
+```

.github/ISSUE_TEMPLATE/config.yml

@@ -1,22 +1,8 @@
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-blank_issues_enabled: false
+blank_issues_enabled: true
 contact_links:
-  - name: Question & FAQ & Proposal
-    url: https://github.com/apache/dubbo/discussions/
-    about: Ask a question, request support or submit a proposal for Apache Dubbo.
+  - name: Dubbo Community Repo
+    url: https://github.com/apache/dubbo-website
+    about: Please see our community docs here.
+  - name: Report a security issue
+    url: https://github.com/apache/dubbo/security/policy
+    about: Please report security vulnerabilities using these instructions.

.github/ISSUE_TEMPLATE/discussion.md

@@ -0,0 +1,11 @@
+---
+name: Discussion
+about: Start a discussion for Dubbo
+title: ''
+labels: type/discussion
+assignees: ''
+---
+
+<!-- If you need to report a security issue please visit https://github.com/apache/dubbo/security/policy -->
+
+<!-- For all design discussions please continue. -->

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,16 @@
+---
+name: Feature Request
+about: Create a Feature Request for Dubbo
+title: ''
+labels: type/feature
+assignees: ''
+
+---
+<!-- If you need to report a security issue please visit https://github.com/apache/dubbo/security/policy -->
+
+- [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
+- [ ] I have searched the [release notes](https://github.com/apache/dubbo/releases) of this repository and believe that this is not a duplicate.
+
+## Describe the feature
+<!-- Please also discuss possible business value -->
+

.github/ISSUE_TEMPLATE/proposal.md

@@ -0,0 +1,15 @@
+---
+name: Proposal
+about: Create a technical proposal for Dubbo
+title: ''
+labels: type/proposal
+assignees: ''
+
+---
+<!-- If you need to report a security issue please visit https://github.com/apache/dubbo/security/policy -->
+
+- [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
+
+## Describe the proposal
+<!-- Please use this for a concrete design proposal for functionality. -->
+<!-- If you just want to request a new feature and discuss the possible business value, create a Feature Request. -->

.github/ISSUE_TEMPLATE/question.md

@@ -0,0 +1,13 @@
+---
+name: Question
+about: Ask a question about Dubbo
+title: ''
+labels: type/question
+assignees: ''
+
+---
+<!-- If you need to report a security issue please visit https://github.com/apache/dubbo/security/policy -->
+
+- [ ] I have searched the [issues](https://github.com/apache/dubbo/issues) of this repository and believe that this is not a duplicate.
+
+## Ask your question here

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,21 +0,0 @@
-## What is the purpose of the change
-
-
-
-## Brief changelog
-
-
-## Verifying this change
-
-
-<!-- Follow this checklist to help us incorporate your contribution quickly and easily: -->
-
-## Checklist
-- [x] Make sure there is a [GitHub_issue](https://github.com/apache/dubbo/issues) field for the change (usually before you start working on it). Trivial changes like typos do not require a GitHub issue. Your pull request should address just this issue, without pulling in other changes - one PR resolves one issue.
-- [ ] Each commit in the pull request should have a meaningful subject line and body.
-- [ ] Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
-- [ ] Check if is necessary to patch to Dubbo 3 if you are work on Dubbo 2.7
-- [ ] Write necessary unit-test to verify your logic correction, more mock a little better when cross module dependency exist. If the new feature or significant change is committed, please remember to add sample in [dubbo samples](https://github.com/apache/dubbo-samples) project.
-- [ ] Add some description to [dubbo-website](https://github.com/apache/dubbo-website) project if you are requesting to add a feature.
-- [ ] GitHub Actions works fine on your own branch.
-- [ ] If this contribution is large, please follow the [Software Donation Guide](https://github.com/apache/dubbo/wiki/Software-donation-guide).

.github/workflows/build-and-test-pr.yml

@@ -13,54 +13,13 @@ env:
   VERSIONS_LIMIT: 4
   JACOCO_ENABLE: true
   CANDIDATE_VERSIONS: '
-    spring.version:5.3.24;
-    spring-boot.version:2.7.6;
+    spring.version:4.3.30.RELEASE;
+    spring-boot.version:1.5.22.RELEASE;
+    spring-boot.version:2.4.1;
     '
 
 jobs:
-  check-format:
-    name: Check if code needs formatting
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-      - name: Setup Maven
-        uses: actions/setup-java@v4
-        with:
-          java-version: 21
-          distribution: zulu
-      - name: Check if code aligns with code style
-        id: check
-        run: mvn --log-file mvn.log spotless:check
-        continue-on-error: true
-      - name: Upload checkstyle result
-        uses: actions/upload-artifact@v4
-        with:
-          name: checkstyle-result
-          path: mvn.log
-      - name: Generate Summary for successful run
-        if: ${{ steps.check.outcome == 'success' }}
-        run: |
-          echo ":ballot_box_with_check: Kudos! No formatting issues found!" >> $GITHUB_STEP_SUMMARY
-      - name: Generate Summary for failed run
-        if: ${{ steps.check.outcome == 'failure' }}
-        run: |
-          echo "## :negative_squared_cross_mark: Formatting issues found!" >> $GITHUB_STEP_SUMMARY
-          echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
-          cat mvn.log | grep "ERROR" | sed 's/Check if code needs formatting    Check if code aligns with code style   [0-9A-Z:.-]\+//' | sed 's/\[ERROR] //' | head -n -11 >> $GITHUB_STEP_SUMMARY
-          echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
-          echo "Please run \`mvn spotless:apply\` to fix the formatting issues." >> $GITHUB_STEP_SUMMARY
-      - name: Fail if code needs formatting
-        if: ${{ steps.check.outcome == 'failure' }}
-        uses: actions/github-script@v7.0.1
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          script: |
-            core.setFailed("Formatting issues found!")
-
   license:
-    name: "Check License"
-    needs: check-format
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -68,11 +27,11 @@ jobs:
         uses: apache/skywalking-eyes@e1a02359b239bd28de3f6d35fdc870250fa513d5
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      - name: "Set up JDK 21"
+      - name: "Set up JDK 17"
         uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
-          java-version: 21
+          java-version: 17
       - name: "Compile Dubbo (Linux)"
         run: |
           ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast -T 2C clean install -DskipTests=true -DskipIntegrationTests=true -Dcheckstyle.skip=true -Dcheckstyle_unix.skip=true -Drat.skip=true -Dmaven.javadoc.skip=true
@@ -85,8 +44,6 @@ jobs:
           mode: check
 
   build-source:
-    name: "Build Dubbo"
-    needs: check-format
     runs-on: ubuntu-latest
     outputs:
       version: ${{ steps.dubbo-version.outputs.version }}
@@ -97,7 +54,7 @@ jobs:
       - uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
-          java-version: 8
+          java-version: 17
       - uses: actions/cache@v3
         name: "Cache local Maven repository"
         with:
@@ -142,7 +99,6 @@ jobs:
 
   unit-test-prepare:
     name: "Preparation for Unit Test"
-    needs: check-format
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
@@ -191,7 +147,7 @@ jobs:
           echo "--- End Print Rsa Public Key"
 
   unit-test:
-    needs: [check-format, build-source, unit-test-prepare]
+    needs: [build-source, unit-test-prepare]
     name: "Unit Test On ubuntu-latest"
     runs-on: ubuntu-latest
     strategy:
@@ -208,7 +164,7 @@ jobs:
         uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
-          java-version: 21
+          java-version: 17
       - uses: actions/cache@v3
         name: "Cache local Maven repository"
         with:
@@ -256,120 +212,15 @@ jobs:
           name: coverage-result
           path: "**/target/site/**/jacoco.xml"
 
-  samples-test-prepare:
-    needs: check-format
-    runs-on: ubuntu-latest
-    env:
-      JOB_COUNT: 3
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Prepare test list"
-        run: |
-          bash ./test/scripts/prepare-test.sh
-      - name: "Upload test list"
-        uses: actions/upload-artifact@v3
-        with:
-          name: samples-test-list
-          path: test/jobs
-  samples-test-job:
-    needs: [check-format, build-source, samples-test-prepare]
-    name: "Samples Test on ubuntu-latest (JobId: ${{matrix.job_id}})"
-    runs-on: ubuntu-latest
-    timeout-minutes: 90
-    env:
-      JAVA_VER: 8
-      TEST_CASE_FILE: jobs/testjob_${{matrix.job_id}}.txt
-    strategy:
-      fail-fast: false
-      matrix:
-        job_id: [1, 2, 3]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Cache local Maven repository"
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-            ${{ runner.os }}-maven-
-      - name: "Restore Dubbo cache"
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository/org/apache/dubbo
-          key: ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}
-            ${{ runner.os }}-dubbo-snapshot-
-      - name: "Download test list"
-        uses: actions/download-artifact@v3
-        with:
-          name: samples-test-list
-          path: test/jobs/
-      - name: "Set up JDK 8"
-        uses: actions/setup-java@v3
-        with:
-          distribution: 'zulu'
-          java-version: 8
-      - name: "Init Candidate Versions"
-        run: |
-          DUBBO_VERSION="${{needs.build-source.outputs.version}}"
-          CANDIDATE_VERSIONS="dubbo.version:$DUBBO_VERSION;compiler.version:$DUBBO_VERSION;$CANDIDATE_VERSIONS;dubbo.compiler.version:$DUBBO_VERSION"
-          echo "CANDIDATE_VERSIONS=$CANDIDATE_VERSIONS" >> $GITHUB_ENV
-      - name: "Build test image"
-        run: |
-          cd test && bash ./build-test-image.sh
-      - name: "Run tests"
-        run: cd test && bash ./run-tests.sh
-      - name: "merge jacoco resule"
-        run: |
-          cd test/dubbo-test-jacoco-merger && mvn clean compile exec:java -Dexec.mainClass="org.apache.dubbo.test.JacocoMerge" -Dexec.args="${{github.workspace}}"
-      - name: "Upload jacoco"
-        uses: actions/upload-artifact@v3
-        with:
-          name: samples-jacoco-result
-          path: target/jacoco*.exec
-      - name: "Upload test result"
-        if: always()
-        uses: actions/upload-artifact@v3
-        with:
-          name: samples-test-result
-          path: test/jobs/*-result*
-  samples-test-result:
-    needs: [check-format, samples-test-job]
-    if: always()
-    runs-on: ubuntu-latest
-    env:
-      JAVA_VER: 8
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Download test result"
-        uses: actions/download-artifact@v3
-        with:
-          name: samples-test-result
-          path: test/jobs/
-      - name: "Merge test result"
-        run: ./test/scripts/merge-test-results.sh
-
   integration-test-prepare:
-    needs: check-format
     runs-on: ubuntu-latest
     env:
       JOB_COUNT: 3
     steps:
       - uses: actions/checkout@v3
         with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
+          repository: 'apache/dubbo-samples'
+          ref: master
       - name: "Prepare test list"
         run: |
           bash ./test/scripts/prepare-test.sh
@@ -378,8 +229,9 @@ jobs:
         with:
           name: test-list
           path: test/jobs
+
   integration-test-job:
-    needs: [check-format, build-source, integration-test-prepare]
+    needs: [build-source, integration-test-prepare]
     name: "Integration Test on ubuntu-latest (JobId: ${{matrix.job_id}})"
     runs-on: ubuntu-latest
     timeout-minutes: 90
@@ -393,8 +245,8 @@ jobs:
     steps:
       - uses: actions/checkout@v3
         with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
+          repository: 'apache/dubbo-samples'
+          ref: master
       - name: "Cache local Maven repository"
         uses: actions/cache@v3
         with:
@@ -445,8 +297,9 @@ jobs:
         with:
           name: test-result
           path: test/jobs/*-result*
+
   integration-test-result:
-    needs: [check-format, integration-test-job]
+    needs: [integration-test-job]
     if: always()
     runs-on: ubuntu-latest
     env:
@@ -454,8 +307,8 @@ jobs:
     steps:
       - uses: actions/checkout@v3
         with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
+          repository: 'apache/dubbo-samples'
+          ref: master
       - name: "Download test result"
         uses: actions/download-artifact@v3
         with:
@@ -466,7 +319,7 @@ jobs:
 
   jacoco-result-merge:
     runs-on: ubuntu-latest
-    needs: [check-format, integration-test-result, samples-test-result, unit-test]
+    needs: [integration-test-result, unit-test]
     steps:
       - uses: actions/checkout@v3
         with:
@@ -475,15 +328,11 @@ jobs:
         with:
           repository: 'apache/dubbo-samples'
           path: "./dubbo-samples"
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-integration-cases'
-          path: "./dubbo-integration-cases"
-      - name: "Set up JDK 21"
+      - name: "Set up JDK 17"
         uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
-          java-version: 21
+          java-version: 17
       - name: "Restore class result"
         uses: actions/download-artifact@v3
         with:
@@ -494,23 +343,14 @@ jobs:
           cd ${{ github.workspace }}/dubbo
           unzip -o ${{ github.workspace }}/class.zip
       - name: "Restore jacoco exec"
-        uses: actions/download-artifact@v3
-        with:
-          name: samples-jacoco-result
-          path: dubbo-samples/target/
-      - name: "Restore integration jacoco exec"
         uses: actions/download-artifact@v3
         with:
           name: jacoco-result
-          path: dubbo-integration-cases/target/
+          path: dubbo-samples/target/
       - name: "Merge jacoco result"
         run: |
           cd ${{ github.workspace }}/dubbo-samples/test/dubbo-test-jacoco-merger
           mvn clean compile exec:java -Dexec.mainClass="org.apache.dubbo.test.JacocoReport" -Dexec.args="${{github.workspace}}/dubbo-samples ${{github.workspace}}/dubbo"
-      - name: "Merge samples jacoco result"
-        run: |
-          cd ${{ github.workspace }}/dubbo-integration-cases/test/dubbo-test-jacoco-merger
-          mvn clean compile exec:java -Dexec.mainClass="org.apache.dubbo.test.JacocoReport" -Dexec.args="${{github.workspace}}/dubbo-integration-cases ${{github.workspace}}/dubbo"
       - name: "Restore coverage result"
         uses: actions/download-artifact@v3
         with:
@@ -518,11 +358,8 @@ jobs:
           path: dubbo/
       - name: "Upload coverage to Codecov"
         uses: codecov/codecov-action@v3
-        with:
-          verbose: true
 
   error-code-inspecting:
-    needs: check-format
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -535,11 +372,11 @@ jobs:
           ref: main
           path: "./dubbo-test-tools"
 
-      - name: "Set up JDK 21"
+      - name: "Set up JDK 17"
         uses: actions/setup-java@v3
         with:
           distribution: 'zulu'
-          java-version: 21
+          java-version: 17
 
       - name: "Compile Dubbo (Linux)"
         run: |
@@ -561,7 +398,6 @@ jobs:
           path: ${{ github.workspace }}/dubbo-test-tools/dubbo-error-code-inspector/error-inspection-result.txt
 
   native-image-inspecting:
-    needs: check-format
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
@@ -579,10 +415,10 @@ jobs:
 
       - name: "Setup Zookeeper environment"
         run: |
-          wget https://dlcdn.apache.org/zookeeper/zookeeper-3.8.4/apache-zookeeper-3.8.4-bin.tar.gz
-          tar -zxvf apache-zookeeper-3.8.4-bin.tar.gz
-          mv apache-zookeeper-3.8.4-bin/conf/zoo_sample.cfg apache-zookeeper-3.8.4-bin/conf/zoo.cfg
-          apache-zookeeper-3.8.4-bin/bin/zkServer.sh start
+          wget https://dlcdn.apache.org/zookeeper/zookeeper-3.7.1/apache-zookeeper-3.7.1-bin.tar.gz
+          tar -zxvf apache-zookeeper-3.7.1-bin.tar.gz
+          mv apache-zookeeper-3.7.1-bin/conf/zoo_sample.cfg apache-zookeeper-3.7.1-bin/conf/zoo.cfg
+          apache-zookeeper-3.7.1-bin/bin/zkServer.sh start
 
       - name: "Check environment"
         run: |

.github/workflows/build-and-test-scheduled-3.0.yml

@@ -0,0 +1,251 @@
+name: Build and Test Scheduled On 3.0
+
+on:
+  schedule:
+    - cron: '0 0/6 * * *'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+env:
+  FORK_COUNT: 2
+  FAIL_FAST: 0
+  SHOW_ERROR_DETAIL: 1
+  #multi-version size limit
+  VERSIONS_LIMIT: 4
+  CANDIDATE_VERSIONS: '
+    spring.version:4.3.30.RELEASE;
+    spring-boot.version:1.5.22.RELEASE;
+    spring-boot.version:2.4.1;
+    '
+
+jobs:
+  build-source:
+    runs-on: ubuntu-latest
+    outputs:
+      version: ${{ steps.dubbo-version.outputs.version }}
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          ref: "3.0"
+          path: dubbo
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'zulu'
+          java-version: 8
+      - uses: actions/cache@v3
+        name: "Cache local Maven repository"
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}-${{ github.run_id }}
+          restore-keys: |
+            ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+            ${{ runner.os }}-maven-
+      - name: "Dubbo cache"
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2/repository/org/apache/dubbo
+          key: ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}-${{ github.run_id }}
+      - name: "Build Dubbo with Maven"
+        run: |
+          cd ./dubbo
+          ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean source:jar install -Pjacoco,checkstyle -Dmaven.wagon.httpconnectionManager.ttlSeconds=120 -Dmaven.wagon.http.retryHandler.count=5 -Dmaven.test.skip=true -Dmaven.test.skip.exec=true -DembeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper
+      - name: "Pack checkstyle file if failure"
+        if: failure()
+        run: 7z a ${{ github.workspace }}/checkstyle.zip *checkstyle* -r
+      - name: "Upload checkstyle file if failure"
+        if: failure()
+        uses: actions/upload-artifact@v3
+        with:
+          name: "checkstyle-file"
+          path: ${{ github.workspace }}/checkstyle.zip
+      - name: "Calculate Dubbo Version"
+        id: dubbo-version
+        run: |
+          REVISION=`awk '/<revision>[^<]+<\/revision>/{gsub(/<revision>|<\/revision>/,"",$1);print $1;exit;}' ./dubbo/pom.xml`
+          echo "version=$REVISION" >> $GITHUB_OUTPUT
+          echo "dubbo version: $REVISION"
+
+  unit-test-prepare:
+    name: " Preparation for Unit Test On ${{ matrix.os }}"
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-latest, windows-latest ]
+    env:
+      ZOOKEEPER_VERSION: 3.6.3
+    steps:
+      - uses: actions/cache@v3
+        name: "Cache zookeeper binary archive"
+        id: "cache-zookeeper"
+        with:
+          path: ${{ github.workspace }}/.tmp/zookeeper
+          key: zookeeper-${{ runner.os }}-${{ env.ZOOKEEPER_VERSION }}
+          restore-keys: |
+            zookeeper-${{ runner.os }}-${{ env.ZOOKEEPER_VERSION }}
+      - name: "Set up msys2 if necessary"
+        if: ${{ startsWith( matrix.os, 'windows') && steps.cache-zookeeper.outputs.cache-hit != 'true' }}
+        uses: msys2/setup-msys2@v2
+        with:
+          release: false  # support cache, see https://github.com/msys2/setup-msys2#context
+      - name: "Download zookeeper binary archive in Linux OS"
+        if: ${{ startsWith( matrix.os, 'ubuntu') && steps.cache-zookeeper.outputs.cache-hit != 'true' }}
+        run: |
+          mkdir -p ${{ github.workspace }}/.tmp/zookeeper
+          wget -c https://archive.apache.org/dist/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
+          wget -c https://apache.website-solution.net/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
+          wget -c http://apache.stu.edu.tw/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
+          wget -c http://ftp.jaist.ac.jp/pub/apache/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
+          wget -c http://apache.mirror.cdnetworks.com/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
+          wget -c http://mirror.apache-kr.org/apache/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz
+          echo "list the downloaded zookeeper binary archive"
+          ls -al ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz
+      - name: "Download zookeeper binary archive in Windows OS"
+        if: ${{ startsWith( matrix.os, 'windows') && steps.cache-zookeeper.outputs.cache-hit != 'true' }}
+        shell: msys2 {0}
+        run: |
+          mkdir -p ${{ github.workspace }}/.tmp/zookeeper
+          wget -c https://archive.apache.org/dist/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
+          wget -c https://apache.website-solution.net/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
+          wget -c http://apache.stu.edu.tw/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
+          wget -c http://ftp.jaist.ac.jp/pub/apache/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
+          wget -c http://apache.mirror.cdnetworks.com/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
+          wget -c http://mirror.apache-kr.org/apache/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz
+          echo "list the downloaded zookeeper binary archive"
+          ls -al ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz
+
+  unit-test:
+    needs: [build-source, unit-test-prepare]
+    name: "Unit Test On ${{ matrix.os }} (JDK: ${{ matrix.jdk }})"
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ ubuntu-latest, windows-latest ]
+        jdk: [ 8, 11, 17 ]
+    env:
+      DISABLE_FILE_SYSTEM_TEST: true
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          ref: "3.0"
+      - name: "Set up JDK ${{ matrix.jdk }}"
+        uses: actions/setup-java@v1
+        with:
+          java-version: ${{ matrix.jdk }}
+      - uses: actions/cache@v3
+        name: "Cache local Maven repository"
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}-${{ github.run_id }}
+          restore-keys: |
+            ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+            ${{ runner.os }}-maven-
+      - name: "Test with Maven with Integration Tests"
+        timeout-minutes: 70
+        if: ${{ startsWith( matrix.os, 'ubuntu') }}
+        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco -Dmaven.wagon.httpconnectionManager.ttlSeconds=120 -Dmaven.wagon.http.retryHandler.count=5 -DskipTests=false -DskipIntegrationTests=false -Dcheckstyle.skip=false -Dcheckstyle_unix.skip=false -Drat.skip=false -Dmaven.javadoc.skip=true -DembeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper
+      - name: "Test with Maven without Integration Tests"
+        timeout-minutes: 90
+        if: ${{ startsWith( matrix.os, 'windows') }}
+        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
+      - name: "Upload coverage to Codecov"
+        uses: codecov/codecov-action@v3
+
+  integration-test-prepare:
+    runs-on: ubuntu-latest
+    env:
+      JOB_COUNT: 3
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          repository: 'apache/dubbo-samples'
+          ref: master
+      - name: "Prepare test list"
+        run: |
+          bash ./test/scripts/prepare-test.sh
+      - name: "Upload test list"
+        uses: actions/upload-artifact@v3
+        with:
+          name: test-list
+          path: test/jobs
+
+  integration-test-job:
+    needs: [build-source, integration-test-prepare]
+    name: "Integration Test on ubuntu-latest (JobId: ${{matrix.job_id}})"
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+    env:
+      JAVA_VER: 8
+      TEST_CASE_FILE: jobs/testjob_${{matrix.job_id}}.txt
+    strategy:
+      fail-fast: false
+      matrix:
+        job_id: [1, 2, 3]
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          repository: 'apache/dubbo-samples'
+          ref: master
+      - name: "Cache local Maven repository"
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2/repository
+          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}-${{ github.run_id }}
+          restore-keys: |
+            ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+            ${{ runner.os }}-maven-
+      - name: "Restore Dubbo cache"
+        uses: actions/cache@v3
+        with:
+          path: ~/.m2/repository/org/apache/dubbo
+          key: ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}-${{ github.run_id }}
+          restore-keys: |
+            ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}
+            ${{ runner.os }}-dubbo-snapshot-
+      - name: "Download test list"
+        uses: actions/download-artifact@v3
+        with:
+          name: test-list
+          path: test/jobs/
+      - name: "Set up JDK 8"
+        uses: actions/setup-java@v1
+        with:
+          java-version: 8
+      - name: "Init Candidate Versions"
+        run: |
+          DUBBO_VERSION="${{needs.build-source.outputs.version}}"
+          CANDIDATE_VERSIONS="dubbo.version:$DUBBO_VERSION;compiler.version:$DUBBO_VERSION;$CANDIDATE_VERSIONS;dubbo.compiler.version:$DUBBO_VERSION"
+          echo "CANDIDATE_VERSIONS=$CANDIDATE_VERSIONS" >> $GITHUB_ENV
+      - name: "Build test image"
+        run: |
+          cd test && bash ./build-test-image.sh
+      - name: "Run tests"
+        run: cd test && bash ./run-tests.sh
+      - name: "Upload test result"
+        if: always()
+        uses: actions/upload-artifact@v3
+        with:
+          name: test-result
+          path: test/jobs/*-result*
+
+  integration-test-result:
+    needs: [integration-test-job]
+    if: always()
+    runs-on: ubuntu-latest
+    env:
+      JAVA_VER: 8
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          repository: 'apache/dubbo-samples'
+          ref: master
+      - name: "Download test result"
+        uses: actions/download-artifact@v3
+        with:
+          name: test-result
+          path: test/jobs/
+      - name: "Merge test result"
+        run: ./test/scripts/merge-test-results.sh

.github/workflows/build-and-test-scheduled-3.1.yml

@@ -134,7 +134,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest, windows-latest ]
-        jdk: [ 8, 11, 17, 21 ]
+        jdk: [ 8, 11, 17, 19 ]
     env:
       DISABLE_FILE_SYSTEM_TEST: true
     steps:
@@ -169,6 +169,8 @@ jobs:
         timeout-minutes: 90
         if: ${{ startsWith( matrix.os, 'windows') }}
         run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
+      - name: "Upload coverage to Codecov"
+        uses: codecov/codecov-action@v3
 
   unit-test-fastjson2:
     needs: [build-source, unit-test-prepare]
@@ -178,17 +180,18 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest, windows-latest ]
-        jdk: [ 8, 11, 17, 21 ]
+        jdk: [ 8, 11, 17, 19 ]
     env:
       DISABLE_FILE_SYSTEM_TEST: true
       DUBBO_DEFAULT_SERIALIZATION: fastjson2
       MAVEN_SUREFIRE_ADD_OPENS: true
     steps:
       - uses: actions/checkout@v3
-      - name: "Set up JDK ${{ matrix.jdk }}"
-        uses: actions/setup-java@v3
         with:
-          distribution: 'zulu'
+          ref: "3.1"
+      - name: "Set up JDK ${{ matrix.jdk }}"
+        uses: actions/setup-java@v1
+        with:
           java-version: ${{ matrix.jdk }}
       - uses: actions/cache@v3
         name: "Cache local Maven repository"
@@ -206,120 +209,16 @@ jobs:
           key: zookeeper-${{ runner.os }}-${{ env.ZOOKEEPER_VERSION }}
           restore-keys: |
             zookeeper-${{ runner.os }}-
-      - name: "Test with Maven with Integration Tests on JDK 8"
-        timeout-minutes: 70
-        if: ${{ startsWith( matrix.os, 'ubuntu') && matrix.jdk == '8' }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco,'!jdk15ge' -Dmaven.wagon.httpconnectionManager.ttlSeconds=120 -Dmaven.wagon.http.retryHandler.count=5 -DskipTests=false -DskipIntegrationTests=false -Dcheckstyle.skip=false -Dcheckstyle_unix.skip=false -Drat.skip=false -Dmaven.javadoc.skip=true -DembeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper
-      - name: "Test with Maven without Integration Tests on JDK 8"
-        timeout-minutes: 90
-        if: ${{ startsWith( matrix.os, 'windows') && matrix.jdk == '8' }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -P"jacoco,'!jdk15ge'" -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
       - name: "Test with Maven with Integration Tests"
         timeout-minutes: 70
-        if: ${{ startsWith( matrix.os, 'ubuntu') && matrix.jdk != '8' }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco,jdk15ge-simple,'!jdk15ge' -Dmaven.wagon.httpconnectionManager.ttlSeconds=120 -Dmaven.wagon.http.retryHandler.count=5 -DskipTests=false -DskipIntegrationTests=false -Dcheckstyle.skip=false -Dcheckstyle_unix.skip=false -Drat.skip=false -Dmaven.javadoc.skip=true -DembeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper
+        if: ${{ startsWith( matrix.os, 'ubuntu') }}
+        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco -Dmaven.wagon.httpconnectionManager.ttlSeconds=120 -Dmaven.wagon.http.retryHandler.count=5 -DskipTests=false -DskipIntegrationTests=false -Dcheckstyle.skip=false -Dcheckstyle_unix.skip=false -Drat.skip=false -Dmaven.javadoc.skip=true -DembeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper
       - name: "Test with Maven without Integration Tests"
         timeout-minutes: 90
-        if: ${{ startsWith( matrix.os, 'windows') && matrix.jdk != '8' }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -P"jacoco,jdk15ge-simple,'!jdk15ge'" -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
-
-  samples-test-prepare:
-    runs-on: ubuntu-latest
-    env:
-      JOB_COUNT: 5
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Prepare test list"
-        run: |
-          bash ./test/scripts/prepare-test.sh
-      - name: "Upload test list"
-        uses: actions/upload-artifact@v3
-        with:
-          name: samples-test-list
-          path: test/jobs
-  samples-test-job:
-    needs: [build-source, samples-test-prepare]
-    name: "Samples Test on ubuntu-latest (JobId: ${{matrix.job_id}} JavaVer: ${{matrix.jdk}})"
-    runs-on: ubuntu-latest
-    timeout-minutes: 90
-    env:
-      JAVA_VER: ${{matrix.jdk}}
-      TEST_CASE_FILE: jobs/testjob_${{matrix.job_id}}.txt
-    strategy:
-      fail-fast: false
-      matrix:
-        jdk: [ 8, 11 ]
-        job_id: [1, 2, 3, 4, 5]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Cache local Maven repository"
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-            ${{ runner.os }}-maven-
-      - name: "Restore Dubbo cache"
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository/org/apache/dubbo
-          key: ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}
-            ${{ runner.os }}-dubbo-snapshot-
-      - name: "Download test list"
-        uses: actions/download-artifact@v3
-        with:
-          name: samples-test-list
-          path: test/jobs/
-      - name: "Set up JDK ${{matrix.jdk}}"
-        uses: actions/setup-java@v1
-        with:
-          java-version: ${{matrix.jdk}}
-      - name: "Init Candidate Versions"
-        run: |
-          DUBBO_VERSION="${{needs.build-source.outputs.version}}"
-          CANDIDATE_VERSIONS="dubbo.version:$DUBBO_VERSION;compiler.version:$DUBBO_VERSION;$CANDIDATE_VERSIONS;dubbo.compiler.version:$DUBBO_VERSION"
-          echo "CANDIDATE_VERSIONS=$CANDIDATE_VERSIONS" >> $GITHUB_ENV
-      - name: "Build test image"
-        run: |
-          cd test && bash ./build-test-image.sh
-      - name: "Run tests"
-        run: cd test && bash ./run-tests.sh
-      - name: "Upload test result"
-        if: always()
-        uses: actions/upload-artifact@v3
-        with:
-          name: samples-test-result-${{matrix.jdk}}
-          path: test/jobs/*-result*
-  samples-test-result:
-    needs: [samples-test-job]
-    if: always()
-    runs-on: ubuntu-latest
-    env:
-      JAVA_VER: ${{matrix.jdk}}
-    strategy:
-      matrix:
-        jdk: [ 8, 11 ]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Download test result"
-        uses: actions/download-artifact@v3
-        with:
-          name: samples-test-result-${{matrix.jdk}}
-          path: test/jobs/
-      - name: "Merge test result"
-        run: ./test/scripts/merge-test-results.sh
+        if: ${{ startsWith( matrix.os, 'windows') }}
+        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
+      - name: "Upload coverage to Codecov"
+        uses: codecov/codecov-action@v3
 
   integration-test-prepare:
     runs-on: ubuntu-latest
@@ -328,19 +227,20 @@ jobs:
     steps:
       - uses: actions/checkout@v3
         with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
+          repository: 'apache/dubbo-samples'
+          ref: master
       - name: "Prepare test list"
         run: |
           bash ./test/scripts/prepare-test.sh
       - name: "Upload test list"
         uses: actions/upload-artifact@v3
         with:
-          name: integration-test-list
+          name: test-list
           path: test/jobs
+
   integration-test-job:
     needs: [build-source, integration-test-prepare]
-    name: "Integration Test on ubuntu-latest (JobId: ${{matrix.job_id}} JavaVer: ${{matrix.jdk}})"
+    name: "Integration Test on ubuntu-latest (JobId: ${{matrix.job_id}})"
     runs-on: ubuntu-latest
     timeout-minutes: 90
     env:
@@ -354,8 +254,8 @@ jobs:
     steps:
       - uses: actions/checkout@v3
         with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
+          repository: 'apache/dubbo-samples'
+          ref: master
       - name: "Cache local Maven repository"
         uses: actions/cache@v3
         with:
@@ -375,7 +275,7 @@ jobs:
       - name: "Download test list"
         uses: actions/download-artifact@v3
         with:
-          name: integration-test-list
+          name: test-list
           path: test/jobs/
       - name: "Set up JDK ${{matrix.jdk}}"
         uses: actions/setup-java@v1
@@ -395,8 +295,9 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v3
         with:
-          name: integration-test-result-${{matrix.jdk}}
+          name: test-result-${{matrix.jdk}}
           path: test/jobs/*-result*
+
   integration-test-result:
     needs: [integration-test-job]
     if: always()
@@ -409,12 +310,12 @@ jobs:
     steps:
       - uses: actions/checkout@v3
         with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
+          repository: 'apache/dubbo-samples'
+          ref: master
       - name: "Download test result"
         uses: actions/download-artifact@v3
         with:
-          name: integration-test-result-${{matrix.jdk}}
+          name: test-result-${{matrix.jdk}}
           path: test/jobs/
       - name: "Merge test result"
         run: ./test/scripts/merge-test-results.sh
@@ -433,11 +334,10 @@ jobs:
           ref: main
           path: "./dubbo-test-tools"
 
-      - name: "Set up JDK 21"
-        uses: actions/setup-java@v3
+      - name: "Set up JDK 17"
+        uses: actions/setup-java@v1
         with:
-          distribution: 'zulu'
-          java-version: 21
+          java-version: 17
 
       - name: "Compile Dubbo (Linux)"
         run: |
@@ -477,10 +377,10 @@ jobs:
 
       - name: "Setup Zookeeper environment"
         run: |
-          wget https://dlcdn.apache.org/zookeeper/zookeeper-3.8.4/apache-zookeeper-3.8.4-bin.tar.gz
-          tar -zxvf apache-zookeeper-3.8.4-bin.tar.gz
-          mv apache-zookeeper-3.8.4-bin/conf/zoo_sample.cfg apache-zookeeper-3.8.4-bin/conf/zoo.cfg
-          apache-zookeeper-3.8.4-bin/bin/zkServer.sh start
+          wget https://dlcdn.apache.org/zookeeper/zookeeper-3.7.1/apache-zookeeper-3.7.1-bin.tar.gz
+          tar -zxvf apache-zookeeper-3.7.1-bin.tar.gz
+          mv apache-zookeeper-3.7.1-bin/conf/zoo_sample.cfg apache-zookeeper-3.7.1-bin/conf/zoo.cfg
+          apache-zookeeper-3.7.1-bin/bin/zkServer.sh start
 
       - name: "Check environment"
         run: |
@@ -496,7 +396,7 @@ jobs:
         run: |
           cd ${{ github.workspace }}/dubbo/dubbo-demo/dubbo-demo-native/dubbo-demo-native-provider
           ${{ github.workspace }}/dubbo/mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast -T 2C clean package -P native -Dmaven.test.skip=true native:compile
-          nohup ./target/dubbo-demo-native-provider &
+          nohup ./target/demo-native-provider &
           cd ${{ github.workspace }}/dubbo/dubbo-demo/dubbo-demo-native/dubbo-demo-native-consumer
           ${{ github.workspace }}/dubbo/mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast -T 2C clean package -P native -Dmaven.test.skip=true native:compile
-          ./target/dubbo-demo-native-consumer
+          ./target/demo-native-consumer

.github/workflows/build-and-test-scheduled-3.2.yml

@@ -134,7 +134,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest, windows-latest ]
-        jdk: [ 8, 11, 17, 21 ]
+        jdk: [ 8, 11, 17, 19 ]
     env:
       DISABLE_FILE_SYSTEM_TEST: true
     steps:
@@ -169,6 +169,8 @@ jobs:
         timeout-minutes: 90
         if: ${{ startsWith( matrix.os, 'windows') }}
         run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
+      - name: "Upload coverage to Codecov"
+        uses: codecov/codecov-action@v3
 
   unit-test-fastjson2:
     needs: [build-source, unit-test-prepare]
@@ -178,17 +180,18 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest, windows-latest ]
-        jdk: [ 8, 11, 17, 21 ]
+        jdk: [ 8, 11, 17, 19 ]
     env:
       DISABLE_FILE_SYSTEM_TEST: true
       DUBBO_DEFAULT_SERIALIZATION: fastjson2
       MAVEN_SUREFIRE_ADD_OPENS: true
     steps:
       - uses: actions/checkout@v3
-      - name: "Set up JDK ${{ matrix.jdk }}"
-        uses: actions/setup-java@v3
         with:
-          distribution: 'zulu'
+          ref: "3.2"
+      - name: "Set up JDK ${{ matrix.jdk }}"
+        uses: actions/setup-java@v1
+        with:
           java-version: ${{ matrix.jdk }}
       - uses: actions/cache@v3
         name: "Cache local Maven repository"
@@ -206,120 +209,16 @@ jobs:
           key: zookeeper-${{ runner.os }}-${{ env.ZOOKEEPER_VERSION }}
           restore-keys: |
             zookeeper-${{ runner.os }}-
-      - name: "Test with Maven with Integration Tests on JDK 8"
-        timeout-minutes: 70
-        if: ${{ startsWith( matrix.os, 'ubuntu') && matrix.jdk == '8' }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco,'!jdk15ge' -Dmaven.wagon.httpconnectionManager.ttlSeconds=120 -Dmaven.wagon.http.retryHandler.count=5 -DskipTests=false -DskipIntegrationTests=false -Dcheckstyle.skip=false -Dcheckstyle_unix.skip=false -Drat.skip=false -Dmaven.javadoc.skip=true -DembeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper
-      - name: "Test with Maven without Integration Tests on JDK 8"
-        timeout-minutes: 90
-        if: ${{ startsWith( matrix.os, 'windows') && matrix.jdk == '8' }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -P"jacoco,'!jdk15ge'" -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
       - name: "Test with Maven with Integration Tests"
         timeout-minutes: 70
-        if: ${{ startsWith( matrix.os, 'ubuntu') && matrix.jdk != '8' }}
+        if: ${{ startsWith( matrix.os, 'ubuntu') }}
         run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco,jdk15ge-simple,'!jdk15ge' -Dmaven.wagon.httpconnectionManager.ttlSeconds=120 -Dmaven.wagon.http.retryHandler.count=5 -DskipTests=false -DskipIntegrationTests=false -Dcheckstyle.skip=false -Dcheckstyle_unix.skip=false -Drat.skip=false -Dmaven.javadoc.skip=true -DembeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper
       - name: "Test with Maven without Integration Tests"
         timeout-minutes: 90
-        if: ${{ startsWith( matrix.os, 'windows') && matrix.jdk != '8' }}
+        if: ${{ startsWith( matrix.os, 'windows') }}
         run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -P"jacoco,jdk15ge-simple,'!jdk15ge'" -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
-
-  samples-test-prepare:
-    runs-on: ubuntu-latest
-    env:
-      JOB_COUNT: 5
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Prepare test list"
-        run: |
-          bash ./test/scripts/prepare-test.sh
-      - name: "Upload test list"
-        uses: actions/upload-artifact@v3
-        with:
-          name: samples-test-list
-          path: test/jobs
-  samples-test-job:
-    needs: [build-source, samples-test-prepare]
-    name: "Samples Test on ubuntu-latest (JobId: ${{matrix.job_id}} JavaVer: ${{matrix.jdk}})"
-    runs-on: ubuntu-latest
-    timeout-minutes: 90
-    env:
-      JAVA_VER: ${{matrix.jdk}}
-      TEST_CASE_FILE: jobs/testjob_${{matrix.job_id}}.txt
-    strategy:
-      fail-fast: false
-      matrix:
-        jdk: [ 8, 11, 17, 21 ]
-        job_id: [1, 2, 3, 4, 5]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Cache local Maven repository"
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-            ${{ runner.os }}-maven-
-      - name: "Restore Dubbo cache"
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository/org/apache/dubbo
-          key: ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}
-            ${{ runner.os }}-dubbo-snapshot-
-      - name: "Download test list"
-        uses: actions/download-artifact@v3
-        with:
-          name: samples-test-list
-          path: test/jobs/
-      - name: "Set up JDK ${{matrix.jdk}}"
-        uses: actions/setup-java@v1
-        with:
-          java-version: ${{matrix.jdk}}
-      - name: "Init Candidate Versions"
-        run: |
-          DUBBO_VERSION="${{needs.build-source.outputs.version}}"
-          CANDIDATE_VERSIONS="dubbo.version:$DUBBO_VERSION;compiler.version:$DUBBO_VERSION;$CANDIDATE_VERSIONS;dubbo.compiler.version:$DUBBO_VERSION"
-          echo "CANDIDATE_VERSIONS=$CANDIDATE_VERSIONS" >> $GITHUB_ENV
-      - name: "Build test image"
-        run: |
-          cd test && bash ./build-test-image.sh
-      - name: "Run tests"
-        run: cd test && bash ./run-tests.sh
-      - name: "Upload test result"
-        if: always()
-        uses: actions/upload-artifact@v3
-        with:
-          name: samples-test-result-${{matrix.jdk}}
-          path: test/jobs/*-result*
-  samples-test-result:
-    needs: [samples-test-job]
-    if: always()
-    runs-on: ubuntu-latest
-    env:
-      JAVA_VER: ${{matrix.jdk}}
-    strategy:
-      matrix:
-        jdk: [ 8, 11, 17, 21 ]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Download test result"
-        uses: actions/download-artifact@v3
-        with:
-          name: samples-test-result-${{matrix.jdk}}
-          path: test/jobs/
-      - name: "Merge test result"
-        run: ./test/scripts/merge-test-results.sh
+      - name: "Upload coverage to Codecov"
+        uses: codecov/codecov-action@v3
 
   integration-test-prepare:
     runs-on: ubuntu-latest
@@ -328,19 +227,20 @@ jobs:
     steps:
       - uses: actions/checkout@v3
         with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
+          repository: 'apache/dubbo-samples'
+          ref: master
       - name: "Prepare test list"
         run: |
           bash ./test/scripts/prepare-test.sh
       - name: "Upload test list"
         uses: actions/upload-artifact@v3
         with:
-          name: integration-test-list
+          name: test-list
           path: test/jobs
+
   integration-test-job:
     needs: [build-source, integration-test-prepare]
-    name: "Integration Test on ubuntu-latest (JobId: ${{matrix.job_id}} JavaVer: ${{matrix.jdk}})"
+    name: "Integration Test on ubuntu-latest (JobId: ${{matrix.job_id}})"
     runs-on: ubuntu-latest
     timeout-minutes: 90
     env:
@@ -349,13 +249,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        jdk: [ 8, 11, 17, 21 ]
+        jdk: [ 8, 11, 17, 19 ]
         job_id: [1, 2, 3, 4, 5]
     steps:
       - uses: actions/checkout@v3
         with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
+          repository: 'apache/dubbo-samples'
+          ref: master
       - name: "Cache local Maven repository"
         uses: actions/cache@v3
         with:
@@ -375,7 +275,7 @@ jobs:
       - name: "Download test list"
         uses: actions/download-artifact@v3
         with:
-          name: integration-test-list
+          name: test-list
           path: test/jobs/
       - name: "Set up JDK ${{matrix.jdk}}"
         uses: actions/setup-java@v1
@@ -395,8 +295,9 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v3
         with:
-          name: integration-test-result-${{matrix.jdk}}
+          name: test-result-${{matrix.jdk}}
           path: test/jobs/*-result*
+
   integration-test-result:
     needs: [integration-test-job]
     if: always()
@@ -405,16 +306,16 @@ jobs:
       JAVA_VER: ${{matrix.jdk}}
     strategy:
       matrix:
-        jdk: [ 8, 11, 17, 21 ]
+        jdk: [ 8, 11, 17, 19 ]
     steps:
       - uses: actions/checkout@v3
         with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
+          repository: 'apache/dubbo-samples'
+          ref: master
       - name: "Download test result"
         uses: actions/download-artifact@v3
         with:
-          name: integration-test-result-${{matrix.jdk}}
+          name: test-result-${{matrix.jdk}}
           path: test/jobs/
       - name: "Merge test result"
         run: ./test/scripts/merge-test-results.sh
@@ -433,11 +334,10 @@ jobs:
           ref: main
           path: "./dubbo-test-tools"
 
-      - name: "Set up JDK 21"
-        uses: actions/setup-java@v3
+      - name: "Set up JDK 17"
+        uses: actions/setup-java@v1
         with:
-          distribution: 'zulu'
-          java-version: 21
+          java-version: 17
 
       - name: "Compile Dubbo (Linux)"
         run: |
@@ -477,10 +377,10 @@ jobs:
 
       - name: "Setup Zookeeper environment"
         run: |
-          wget https://dlcdn.apache.org/zookeeper/zookeeper-3.8.4/apache-zookeeper-3.8.4-bin.tar.gz
-          tar -zxvf apache-zookeeper-3.8.4-bin.tar.gz
-          mv apache-zookeeper-3.8.4-bin/conf/zoo_sample.cfg apache-zookeeper-3.8.4-bin/conf/zoo.cfg
-          apache-zookeeper-3.8.4-bin/bin/zkServer.sh start
+          wget https://dlcdn.apache.org/zookeeper/zookeeper-3.7.1/apache-zookeeper-3.7.1-bin.tar.gz
+          tar -zxvf apache-zookeeper-3.7.1-bin.tar.gz
+          mv apache-zookeeper-3.7.1-bin/conf/zoo_sample.cfg apache-zookeeper-3.7.1-bin/conf/zoo.cfg
+          apache-zookeeper-3.7.1-bin/bin/zkServer.sh start
 
       - name: "Check environment"
         run: |

.github/workflows/build-and-test-scheduled-3.3.yml

@@ -1,502 +0,0 @@
-name: Build and Test Scheduled On 3.3
-
-on:
-  schedule:
-    - cron: '0 0/6 * * *'
-  workflow_dispatch:
-
-permissions:
-  contents: read
-
-env:
-  FORK_COUNT: 2
-  FAIL_FAST: 0
-  SHOW_ERROR_DETAIL: 1
-  #multi-version size limit
-  VERSIONS_LIMIT: 4
-  ALL_REMOTE_VERSION: true
-  CANDIDATE_VERSIONS: '
-    spring.version:5.3.24;
-    spring-boot.version:2.7.6;
-    '
-
-jobs:
-  license:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          ref: "3.3"
-      - name: Check License
-        uses: apache/skywalking-eyes@main
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-  build-source:
-    runs-on: ubuntu-latest
-    outputs:
-      version: ${{ steps.dubbo-version.outputs.version }}
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          ref: "3.3"
-          path: dubbo
-      - uses: actions/setup-java@v3
-        with:
-          distribution: 'zulu'
-          java-version: 21
-      - uses: actions/cache@v3
-        name: "Cache local Maven repository"
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-            ${{ runner.os }}-maven-
-      - name: "Dubbo cache"
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository/org/apache/dubbo
-          key: ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}-${{ github.run_id }}
-      - name: "Build Dubbo with Maven"
-        run: |
-          cd ./dubbo
-          ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean source:jar install -Pjacoco,checkstyle -Dmaven.wagon.httpconnectionManager.ttlSeconds=120 -Dmaven.wagon.http.retryHandler.count=5 -Dmaven.test.skip=true -Dmaven.test.skip.exec=true -DembeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper
-      - name: "Pack checkstyle file if failure"
-        if: failure()
-        run: 7z a ${{ github.workspace }}/checkstyle.zip *checkstyle* -r
-      - name: "Upload checkstyle file if failure"
-        if: failure()
-        uses: actions/upload-artifact@v3
-        with:
-          name: "checkstyle-file"
-          path: ${{ github.workspace }}/checkstyle.zip
-      - name: "Calculate Dubbo Version"
-        id: dubbo-version
-        run: |
-          REVISION=`awk '/<revision>[^<]+<\/revision>/{gsub(/<revision>|<\/revision>/,"",$1);print $1;exit;}' ./dubbo/pom.xml`
-          echo "version=$REVISION" >> $GITHUB_OUTPUT
-          echo "dubbo version: $REVISION"
-
-  unit-test-prepare:
-    name: " Preparation for Unit Test On ${{ matrix.os }}"
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ ubuntu-latest, windows-latest ]
-    env:
-      ZOOKEEPER_VERSION: 3.6.3
-    steps:
-      - uses: actions/cache@v3
-        name: "Cache zookeeper binary archive"
-        id: "cache-zookeeper"
-        with:
-          path: ${{ github.workspace }}/.tmp/zookeeper
-          key: zookeeper-${{ runner.os }}-${{ env.ZOOKEEPER_VERSION }}
-          restore-keys: |
-            zookeeper-${{ runner.os }}-${{ env.ZOOKEEPER_VERSION }}
-      - name: "Set up msys2 if necessary"
-        if: ${{ startsWith( matrix.os, 'windows') && steps.cache-zookeeper.outputs.cache-hit != 'true' }}
-        uses: msys2/setup-msys2@v2
-        with:
-          release: false  # support cache, see https://github.com/msys2/setup-msys2#context
-      - name: "Download zookeeper binary archive in Linux OS"
-        if: ${{ startsWith( matrix.os, 'ubuntu') && steps.cache-zookeeper.outputs.cache-hit != 'true' }}
-        run: |
-          mkdir -p ${{ github.workspace }}/.tmp/zookeeper
-          wget -c https://archive.apache.org/dist/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
-          wget -c https://apache.website-solution.net/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
-          wget -c http://apache.stu.edu.tw/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
-          wget -c http://ftp.jaist.ac.jp/pub/apache/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
-          wget -c http://apache.mirror.cdnetworks.com/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
-          wget -c http://mirror.apache-kr.org/apache/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz
-          echo "list the downloaded zookeeper binary archive"
-          ls -al ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz
-      - name: "Download zookeeper binary archive in Windows OS"
-        if: ${{ startsWith( matrix.os, 'windows') && steps.cache-zookeeper.outputs.cache-hit != 'true' }}
-        shell: msys2 {0}
-        run: |
-          mkdir -p ${{ github.workspace }}/.tmp/zookeeper
-          wget -c https://archive.apache.org/dist/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
-          wget -c https://apache.website-solution.net/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
-          wget -c http://apache.stu.edu.tw/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
-          wget -c http://ftp.jaist.ac.jp/pub/apache/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
-          wget -c http://apache.mirror.cdnetworks.com/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz ||
-          wget -c http://mirror.apache-kr.org/apache/zookeeper/zookeeper-${{ env.ZOOKEEPER_VERSION }}/apache-zookeeper-${{ env.ZOOKEEPER_VERSION }}-bin.tar.gz -O ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz
-          echo "list the downloaded zookeeper binary archive"
-          ls -al ${{ github.workspace }}/.tmp/zookeeper/apache-zookeeper-bin.tar.gz
-
-  unit-test:
-    needs: [build-source, unit-test-prepare]
-    name: "Unit Test On ${{ matrix.os }} (JDK: ${{ matrix.jdk }})"
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ ubuntu-latest, windows-latest ]
-        jdk: [ 8, 11, 17, 21 ]
-    env:
-      DISABLE_FILE_SYSTEM_TEST: true
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          ref: "3.3"
-      - name: "Set up JDK ${{ matrix.jdk }}"
-        uses: actions/setup-java@v1
-        with:
-          java-version: ${{ matrix.jdk }}
-      - uses: actions/cache@v3
-        name: "Cache local Maven repository"
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-            ${{ runner.os }}-maven-
-      - uses: actions/cache@v3
-        name: "Cache zookeeper binary archive"
-        id: "cache-zookeeper"
-        with:
-          path: ${{ github.workspace }}/.tmp/zookeeper
-          key: zookeeper-${{ runner.os }}-${{ env.ZOOKEEPER_VERSION }}
-          restore-keys: |
-            zookeeper-${{ runner.os }}-
-      - name: "Test with Maven with Integration Tests"
-        timeout-minutes: 70
-        if: ${{ startsWith( matrix.os, 'ubuntu') }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco -Dmaven.wagon.httpconnectionManager.ttlSeconds=120 -Dmaven.wagon.http.retryHandler.count=5 -DskipTests=false -DskipIntegrationTests=false -Dcheckstyle.skip=false -Dcheckstyle_unix.skip=false -Drat.skip=false -Dmaven.javadoc.skip=true -DembeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper
-      - name: "Test with Maven without Integration Tests"
-        timeout-minutes: 90
-        if: ${{ startsWith( matrix.os, 'windows') }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
-
-  unit-test-fastjson2:
-    needs: [build-source, unit-test-prepare]
-    name: "Unit Test On ${{ matrix.os }} (JDK: ${{ matrix.jdk }}, Serialization: fastjson2)"
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ ubuntu-latest, windows-latest ]
-        jdk: [ 8, 11, 17, 21 ]
-    env:
-      DISABLE_FILE_SYSTEM_TEST: true
-      DUBBO_DEFAULT_SERIALIZATION: fastjson2
-      MAVEN_SUREFIRE_ADD_OPENS: true
-    steps:
-      - uses: actions/checkout@v3
-      - name: "Set up JDK ${{ matrix.jdk }}"
-        uses: actions/setup-java@v3
-        with:
-          distribution: 'zulu'
-          java-version: ${{ matrix.jdk }}
-      - uses: actions/cache@v3
-        name: "Cache local Maven repository"
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-            ${{ runner.os }}-maven-
-      - uses: actions/cache@v3
-        name: "Cache zookeeper binary archive"
-        id: "cache-zookeeper"
-        with:
-          path: ${{ github.workspace }}/.tmp/zookeeper
-          key: zookeeper-${{ runner.os }}-${{ env.ZOOKEEPER_VERSION }}
-          restore-keys: |
-            zookeeper-${{ runner.os }}-
-      - name: "Test with Maven with Integration Tests on JDK 8"
-        timeout-minutes: 70
-        if: ${{ startsWith( matrix.os, 'ubuntu') && matrix.jdk == '8' }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco,'!jdk15ge' -Dmaven.wagon.httpconnectionManager.ttlSeconds=120 -Dmaven.wagon.http.retryHandler.count=5 -DskipTests=false -DskipIntegrationTests=false -Dcheckstyle.skip=false -Dcheckstyle_unix.skip=false -Drat.skip=false -Dmaven.javadoc.skip=true -DembeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper
-      - name: "Test with Maven without Integration Tests on JDK 8"
-        timeout-minutes: 90
-        if: ${{ startsWith( matrix.os, 'windows') && matrix.jdk == '8' }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -P"jacoco,'!jdk15ge'" -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
-      - name: "Test with Maven with Integration Tests"
-        timeout-minutes: 70
-        if: ${{ startsWith( matrix.os, 'ubuntu') && matrix.jdk != '8' }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco,jdk15ge-simple,'!jdk15ge' -Dmaven.wagon.httpconnectionManager.ttlSeconds=120 -Dmaven.wagon.http.retryHandler.count=5 -DskipTests=false -DskipIntegrationTests=false -Dcheckstyle.skip=false -Dcheckstyle_unix.skip=false -Drat.skip=false -Dmaven.javadoc.skip=true -DembeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper
-      - name: "Test with Maven without Integration Tests"
-        timeout-minutes: 90
-        if: ${{ startsWith( matrix.os, 'windows') && matrix.jdk != '8' }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -P"jacoco,jdk15ge-simple,'!jdk15ge'" -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
-
-  samples-test-prepare:
-    runs-on: ubuntu-latest
-    env:
-      JOB_COUNT: 5
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Prepare test list"
-        run: |
-          bash ./test/scripts/prepare-test.sh
-      - name: "Upload test list"
-        uses: actions/upload-artifact@v3
-        with:
-          name: samples-test-list
-          path: test/jobs
-  samples-test-job:
-    needs: [build-source, samples-test-prepare]
-    name: "Samples Test on ubuntu-latest (JobId: ${{matrix.job_id}} JavaVer: ${{matrix.jdk}})"
-    runs-on: ubuntu-latest
-    timeout-minutes: 90
-    env:
-      JAVA_VER: ${{matrix.jdk}}
-      TEST_CASE_FILE: jobs/testjob_${{matrix.job_id}}.txt
-    strategy:
-      fail-fast: false
-      matrix:
-        jdk: [ 8, 11, 17, 21 ]
-        job_id: [1, 2, 3, 4, 5]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Cache local Maven repository"
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-            ${{ runner.os }}-maven-
-      - name: "Restore Dubbo cache"
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository/org/apache/dubbo
-          key: ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}
-            ${{ runner.os }}-dubbo-snapshot-
-      - name: "Download test list"
-        uses: actions/download-artifact@v3
-        with:
-          name: samples-test-list
-          path: test/jobs/
-      - name: "Set up JDK ${{matrix.jdk}}"
-        uses: actions/setup-java@v1
-        with:
-          java-version: ${{matrix.jdk}}
-      - name: "Init Candidate Versions"
-        run: |
-          DUBBO_VERSION="${{needs.build-source.outputs.version}}"
-          CANDIDATE_VERSIONS="dubbo.version:$DUBBO_VERSION;compiler.version:$DUBBO_VERSION;$CANDIDATE_VERSIONS;dubbo.compiler.version:$DUBBO_VERSION"
-          echo "CANDIDATE_VERSIONS=$CANDIDATE_VERSIONS" >> $GITHUB_ENV
-      - name: "Build test image"
-        run: |
-          cd test && bash ./build-test-image.sh
-      - name: "Run tests"
-        run: cd test && bash ./run-tests.sh
-      - name: "Upload test result"
-        if: always()
-        uses: actions/upload-artifact@v3
-        with:
-          name: samples-test-result-${{matrix.jdk}}
-          path: test/jobs/*-result*
-  samples-test-result:
-    needs: [samples-test-job]
-    if: always()
-    runs-on: ubuntu-latest
-    env:
-      JAVA_VER: ${{matrix.jdk}}
-    strategy:
-      matrix:
-        jdk: [ 8, 11, 17, 21 ]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Download test result"
-        uses: actions/download-artifact@v3
-        with:
-          name: samples-test-result-${{matrix.jdk}}
-          path: test/jobs/
-      - name: "Merge test result"
-        run: ./test/scripts/merge-test-results.sh
-
-  integration-test-prepare:
-    runs-on: ubuntu-latest
-    env:
-      JOB_COUNT: 5
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
-      - name: "Prepare test list"
-        run: |
-          bash ./test/scripts/prepare-test.sh
-      - name: "Upload test list"
-        uses: actions/upload-artifact@v3
-        with:
-          name: integration-test-list
-          path: test/jobs
-  integration-test-job:
-    needs: [build-source, integration-test-prepare]
-    name: "Integration Test on ubuntu-latest (JobId: ${{matrix.job_id}} JavaVer: ${{matrix.jdk}})"
-    runs-on: ubuntu-latest
-    timeout-minutes: 90
-    env:
-      JAVA_VER: ${{matrix.jdk}}
-      TEST_CASE_FILE: jobs/testjob_${{matrix.job_id}}.txt
-    strategy:
-      fail-fast: false
-      matrix:
-        jdk: [ 8, 11, 17, 21 ]
-        job_id: [1, 2, 3, 4, 5]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
-      - name: "Cache local Maven repository"
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-            ${{ runner.os }}-maven-
-      - name: "Restore Dubbo cache"
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository/org/apache/dubbo
-          key: ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}
-            ${{ runner.os }}-dubbo-snapshot-
-      - name: "Download test list"
-        uses: actions/download-artifact@v3
-        with:
-          name: integration-test-list
-          path: test/jobs/
-      - name: "Set up JDK ${{matrix.jdk}}"
-        uses: actions/setup-java@v1
-        with:
-          java-version: ${{matrix.jdk}}
-      - name: "Init Candidate Versions"
-        run: |
-          DUBBO_VERSION="${{needs.build-source.outputs.version}}"
-          CANDIDATE_VERSIONS="dubbo.version:$DUBBO_VERSION;compiler.version:$DUBBO_VERSION;$CANDIDATE_VERSIONS;dubbo.compiler.version:$DUBBO_VERSION"
-          echo "CANDIDATE_VERSIONS=$CANDIDATE_VERSIONS" >> $GITHUB_ENV
-      - name: "Build test image"
-        run: |
-          cd test && bash ./build-test-image.sh
-      - name: "Run tests"
-        run: cd test && bash ./run-tests.sh
-      - name: "Upload test result"
-        if: always()
-        uses: actions/upload-artifact@v3
-        with:
-          name: integration-test-result-${{matrix.jdk}}
-          path: test/jobs/*-result*
-  integration-test-result:
-    needs: [integration-test-job]
-    if: always()
-    runs-on: ubuntu-latest
-    env:
-      JAVA_VER: ${{matrix.jdk}}
-    strategy:
-      matrix:
-        jdk: [ 8, 11, 17, 21 ]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
-      - name: "Download test result"
-        uses: actions/download-artifact@v3
-        with:
-          name: integration-test-result-${{matrix.jdk}}
-          path: test/jobs/
-      - name: "Merge test result"
-        run: ./test/scripts/merge-test-results.sh
-
-  error-code-inspecting:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          ref: "3.3"
-          path: "./dubbo"
-
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-test-tools'
-          ref: main
-          path: "./dubbo-test-tools"
-
-      - name: "Set up JDK 21"
-        uses: actions/setup-java@v3
-        with:
-          distribution: 'zulu'
-          java-version: 21
-
-      - name: "Compile Dubbo (Linux)"
-        run: |
-          cd ${{ github.workspace }}/dubbo
-          ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast -T 2C clean install -DskipTests=true -DskipIntegrationTests=true -Dcheckstyle.skip=true -Dcheckstyle_unix.skip=true -Drat.skip=true -Dmaven.javadoc.skip=true
-      - name: "Run Error Code Inspecting"
-        env:
-          DUBBO_ECI_REPORT_AS_ERROR: true
-        run: |
-          cd ${{ github.workspace }}/dubbo-test-tools/dubbo-error-code-inspector
-          ../mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast -T 2C package exec:java -Ddubbo.eci.report-as-error=${DUBBO_ECI_REPORT_AS_ERROR} -Dmaven.test.skip=true -Dmaven.test.skip.exec=true -Ddubbo.eci.path=${{ github.workspace }}/dubbo
-
-      - name: "Upload error code inspection result"
-        # always() should not be used here, since we don't need to handle the 'canceled' situation.
-        if: ${{ success() || failure() }}
-        uses: actions/upload-artifact@v3
-        with:
-          name: "error-inspection-result"
-          path: ${{ github.workspace }}/dubbo-test-tools/dubbo-error-code-inspector/error-inspection-result.txt
-
-  native-image-inspecting:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          ref: "3.3"
-          path: "./dubbo"
-
-      - name: "Setup GraalVM environment"
-        uses: graalvm/setup-graalvm@v1
-        with:
-          version: '22.3.0'
-          java-version: '17'
-          components: 'native-image'
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          native-image-job-reports: 'true'
-
-      - name: "Setup Zookeeper environment"
-        run: |
-          wget https://dlcdn.apache.org/zookeeper/zookeeper-3.8.4/apache-zookeeper-3.8.4-bin.tar.gz
-          tar -zxvf apache-zookeeper-3.8.4-bin.tar.gz
-          mv apache-zookeeper-3.8.4-bin/conf/zoo_sample.cfg apache-zookeeper-3.8.4-bin/conf/zoo.cfg
-          apache-zookeeper-3.8.4-bin/bin/zkServer.sh start
-
-      - name: "Check environment"
-        run: |
-          java --version
-          native-image --version
-
-      - name: "Compile Dubbo (Linux)"
-        run: |
-          cd ${{ github.workspace }}/dubbo
-          ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast -T 2C clean install -DskipTests=true -DskipIntegrationTests=true -Dcheckstyle.skip=true -Dcheckstyle_unix.skip=true -Drat.skip=true -Dmaven.javadoc.skip=true
-
-      - name: "Compile and run Dubbo demo for native (Linux)"
-        run: |
-          cd ${{ github.workspace }}/dubbo/dubbo-demo/dubbo-demo-native/dubbo-demo-native-provider
-          ${{ github.workspace }}/dubbo/mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast -T 2C clean package -P native -Dmaven.test.skip=true native:compile
-          nohup ./target/dubbo-demo-native-provider &
-          cd ${{ github.workspace }}/dubbo/dubbo-demo/dubbo-demo-native/dubbo-demo-native-consumer
-          ${{ github.workspace }}/dubbo/mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast -T 2C clean package -P native -Dmaven.test.skip=true native:compile
-          ./target/dubbo-demo-native-consumer

.github/workflows/release-test.yml

@@ -64,7 +64,7 @@ jobs:
         run: 7z a ${{ github.workspace }}/checkstyle.zip *checkstyle* -r
       - name: "Upload checkstyle file if failure"
         if: failure()
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
         with:
           name: "checkstyle-file"
           path: ${{ github.workspace }}/checkstyle.zip
@@ -132,7 +132,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest, windows-latest ]
-        jdk: [ 8, 11, 17, 21 ]
+        jdk: [ 8, 11, 17, 19 ]
     env:
       DISABLE_FILE_SYSTEM_TEST: true
     steps:
@@ -150,14 +150,6 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
             ${{ runner.os }}-maven-
-      - uses: actions/cache@v3
-        name: "Cache zookeeper binary archive"
-        id: "cache-zookeeper"
-        with:
-          path: ${{ github.workspace }}/.tmp/zookeeper
-          key: zookeeper-${{ runner.os }}-${{ env.ZOOKEEPER_VERSION }}
-          restore-keys: |
-            zookeeper-${{ runner.os }}-
       - name: "Test with Maven with Integration Tests"
         timeout-minutes: 70
         if: ${{ startsWith( matrix.os, 'ubuntu') }}
@@ -166,6 +158,8 @@ jobs:
         timeout-minutes: 90
         if: ${{ startsWith( matrix.os, 'windows') }}
         run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
+      - name: "Upload coverage to Codecov"
+        uses: codecov/codecov-action@v3
 
   unit-test-fastjson2:
     needs: [build-source, unit-test-prepare]
@@ -175,7 +169,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest, windows-latest ]
-        jdk: [ 8, 11, 17, 21 ]
+        jdk: [ 8, 11, 17, 19 ]
     env:
       DISABLE_FILE_SYSTEM_TEST: true
       DUBBO_DEFAULT_SERIALIZATION: fastjson2
@@ -195,128 +189,16 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
             ${{ runner.os }}-maven-
-      - uses: actions/cache@v3
-        name: "Cache zookeeper binary archive"
-        id: "cache-zookeeper"
-        with:
-          path: ${{ github.workspace }}/.tmp/zookeeper
-          key: zookeeper-${{ runner.os }}-${{ env.ZOOKEEPER_VERSION }}
-          restore-keys: |
-            zookeeper-${{ runner.os }}-
-      - name: "Test with Maven with Integration Tests on JDK 8"
-        timeout-minutes: 70
-        if: ${{ startsWith( matrix.os, 'ubuntu') && matrix.jdk == '8' }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco,'!jdk15ge' -Dmaven.wagon.httpconnectionManager.ttlSeconds=120 -Dmaven.wagon.http.retryHandler.count=5 -DskipTests=false -DskipIntegrationTests=false -Dcheckstyle.skip=false -Dcheckstyle_unix.skip=false -Drat.skip=false -Dmaven.javadoc.skip=true -DembeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper
-      - name: "Test with Maven without Integration Tests on JDK 8"
-        timeout-minutes: 90
-        if: ${{ startsWith( matrix.os, 'windows') && matrix.jdk == '8' }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -P"jacoco,'!jdk15ge'" -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
       - name: "Test with Maven with Integration Tests"
         timeout-minutes: 70
-        if: ${{ startsWith( matrix.os, 'ubuntu') && matrix.jdk != '8' }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco,jdk15ge-simple,'!jdk15ge' -Dmaven.wagon.httpconnectionManager.ttlSeconds=120 -Dmaven.wagon.http.retryHandler.count=5 -DskipTests=false -DskipIntegrationTests=false -Dcheckstyle.skip=false -Dcheckstyle_unix.skip=false -Drat.skip=false -Dmaven.javadoc.skip=true -DembeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper
+        if: ${{ startsWith( matrix.os, 'ubuntu') }}
+        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco -Dmaven.wagon.httpconnectionManager.ttlSeconds=120 -Dmaven.wagon.http.retryHandler.count=5 -DskipTests=false -DskipIntegrationTests=false -Dcheckstyle.skip=false -Dcheckstyle_unix.skip=false -Drat.skip=false -Dmaven.javadoc.skip=true -DembeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper
       - name: "Test with Maven without Integration Tests"
         timeout-minutes: 90
-        if: ${{ startsWith( matrix.os, 'windows') && matrix.jdk != '8' }}
-        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -P"jacoco,jdk15ge-simple,'!jdk15ge'" -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
-
-  samples-test-prepare:
-    runs-on: ubuntu-latest
-    env:
-      JOB_COUNT: 5
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Prepare test list"
-        run: |
-          bash ./test/scripts/prepare-test.sh
-      - name: "Upload test list"
-        uses: actions/upload-artifact@v3
-        with:
-          name: samples-test-list
-          path: test/jobs
-  samples-test-job:
-    needs: [build-source, samples-test-prepare]
-    name: "Samples Test on ubuntu-latest (JobId: ${{matrix.job_id}} JavaVer: ${{matrix.jdk}})"
-    runs-on: ubuntu-latest
-    timeout-minutes: 90
-    env:
-      JAVA_VER: ${{matrix.jdk}}
-      TEST_CASE_FILE: jobs/testjob_${{matrix.job_id}}.txt
-    strategy:
-      fail-fast: false
-      matrix:
-        jdk: [ 8, 11, 17, 21 ]
-        job_id: [1, 2, 3, 4, 5]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Cache local Maven repository"
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository
-          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
-            ${{ runner.os }}-maven-
-      - name: "Restore Dubbo cache"
-        uses: actions/cache@v3
-        with:
-          path: ~/.m2/repository/org/apache/dubbo
-          key: ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}-${{ github.run_id }}
-          restore-keys: |
-            ${{ runner.os }}-dubbo-snapshot-${{ github.sha }}
-            ${{ runner.os }}-dubbo-snapshot-
-      - name: "Download test list"
-        uses: actions/download-artifact@v3
-        with:
-          name: samples-test-list
-          path: test/jobs/
-      - name: "Set up JDK ${{matrix.jdk}}"
-        uses: actions/setup-java@v1
-        with:
-          java-version: ${{matrix.jdk}}
-      - name: "Init Candidate Versions"
-        run: |
-          DUBBO_VERSION="${{needs.build-source.outputs.version}}"
-          CANDIDATE_VERSIONS="dubbo.version:$DUBBO_VERSION;compiler.version:$DUBBO_VERSION;$CANDIDATE_VERSIONS;dubbo.compiler.version:$DUBBO_VERSION"
-          echo "CANDIDATE_VERSIONS=$CANDIDATE_VERSIONS" >> $GITHUB_ENV
-      - name: "Build test image"
-        run: |
-          cd test && bash ./build-test-image.sh
-      - name: "Run tests"
-        run: cd test && bash ./run-tests.sh
-      - name: "Upload test result"
-        if: always()
-        uses: actions/upload-artifact@v3
-        with:
-          name: samples-test-result-${{matrix.jdk}}
-          path: test/jobs/*-result*
-  samples-test-result:
-    needs: [samples-test-job]
-    if: always()
-    runs-on: ubuntu-latest
-    env:
-      JAVA_VER: ${{matrix.jdk}}
-    strategy:
-      matrix:
-        jdk: [ 8, 11, 17, 21 ]
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          repository: 'apache/dubbo-samples'
-          ref: master
-      - name: "Download test result"
-        uses: actions/download-artifact@v3
-        with:
-          name: samples-test-result-${{matrix.jdk}}
-          path: test/jobs/
-      - name: "Merge test result"
-        run: ./test/scripts/merge-test-results.sh
+        if: ${{ startsWith( matrix.os, 'windows') }}
+        run: ./mvnw --batch-mode --no-snapshot-updates -e --no-transfer-progress --fail-fast clean test verify -Pjacoco -D"http.keepAlive=false" -D"maven.wagon.http.pool=false" -D"maven.wagon.httpconnectionManager.ttlSeconds=120" -D"maven.wagon.http.retryHandler.count=5" -DskipTests=false -DskipIntegrationTests=true -D"checkstyle.skip=false" -D"checkstyle_unix.skip=true" -D"rat.skip=false" -D"maven.javadoc.skip=true" -D"embeddedZookeeperPath=${{ github.workspace }}/.tmp/zookeeper"
+      - name: "Upload coverage to Codecov"
+        uses: codecov/codecov-action@v3
 
   integration-test-prepare:
     runs-on: ubuntu-latest
@@ -325,19 +207,20 @@ jobs:
     steps:
       - uses: actions/checkout@v3
         with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
+          repository: 'apache/dubbo-samples'
+          ref: master
       - name: "Prepare test list"
         run: |
           bash ./test/scripts/prepare-test.sh
       - name: "Upload test list"
         uses: actions/upload-artifact@v3
         with:
-          name: integration-test-list
+          name: test-list
           path: test/jobs
+
   integration-test-job:
     needs: [build-source, integration-test-prepare]
-    name: "Integration Test on ubuntu-latest (JobId: ${{matrix.job_id}} JavaVer: ${{matrix.jdk}})"
+    name: "Integration Test on ubuntu-latest (JobId: ${{matrix.job_id}})"
     runs-on: ubuntu-latest
     timeout-minutes: 90
     env:
@@ -346,13 +229,13 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        jdk: [ 8, 11, 17, 21 ]
+        jdk: [ 8, 11, 17, 19 ]
         job_id: [1, 2, 3, 4, 5]
     steps:
       - uses: actions/checkout@v3
         with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
+          repository: 'apache/dubbo-samples'
+          ref: master
       - name: "Cache local Maven repository"
         uses: actions/cache@v3
         with:
@@ -372,7 +255,7 @@ jobs:
       - name: "Download test list"
         uses: actions/download-artifact@v3
         with:
-          name: integration-test-list
+          name: test-list
           path: test/jobs/
       - name: "Set up JDK ${{matrix.jdk}}"
         uses: actions/setup-java@v1
@@ -392,8 +275,9 @@ jobs:
         if: always()
         uses: actions/upload-artifact@v3
         with:
-          name: integration-test-result-${{matrix.jdk}}
+          name: test-result-${{matrix.jdk}}
           path: test/jobs/*-result*
+
   integration-test-result:
     needs: [integration-test-job]
     if: always()
@@ -402,16 +286,16 @@ jobs:
       JAVA_VER: ${{matrix.jdk}}
     strategy:
       matrix:
-        jdk: [ 8, 11, 17, 21 ]
+        jdk: [ 8, 11, 17, 19 ]
     steps:
       - uses: actions/checkout@v3
         with:
-          repository: 'apache/dubbo-integration-cases'
-          ref: main
+          repository: 'apache/dubbo-samples'
+          ref: master
       - name: "Download test result"
         uses: actions/download-artifact@v3
         with:
-          name: integration-test-result-${{matrix.jdk}}
+          name: test-result-${{matrix.jdk}}
           path: test/jobs/
       - name: "Merge test result"
         run: ./test/scripts/merge-test-results.sh
@@ -429,10 +313,10 @@ jobs:
           ref: main
           path: "./dubbo-test-tools"
 
-      - name: "Set up JDK 21"
+      - name: "Set up JDK 17"
         uses: actions/setup-java@v3
         with:
-          java-version: 21
+          java-version: 17
           distribution: 'zulu'
 
       - name: "Compile Dubbo (Linux)"
@@ -449,7 +333,7 @@ jobs:
       - name: "Upload error code inspection result"
         # always() should not be used here, since we don't need to handle the 'canceled' situation.
         if: ${{ success() || failure() }}
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v2
         with:
           name: "error-inspection-result"
           path: ${{ github.workspace }}/dubbo-test-tools/dubbo-error-code-inspector/error-inspection-result.txt
@@ -472,10 +356,10 @@ jobs:
 
       - name: "Setup Zookeeper environment"
         run: |
-          wget https://dlcdn.apache.org/zookeeper/zookeeper-3.8.4/apache-zookeeper-3.8.4-bin.tar.gz
-          tar -zxvf apache-zookeeper-3.8.4-bin.tar.gz
-          mv apache-zookeeper-3.8.4-bin/conf/zoo_sample.cfg apache-zookeeper-3.8.4-bin/conf/zoo.cfg
-          apache-zookeeper-3.8.4-bin/bin/zkServer.sh start
+          wget https://dlcdn.apache.org/zookeeper/zookeeper-3.7.1/apache-zookeeper-3.7.1-bin.tar.gz
+          tar -zxvf apache-zookeeper-3.7.1-bin.tar.gz
+          mv apache-zookeeper-3.7.1-bin/conf/zoo_sample.cfg apache-zookeeper-3.7.1-bin/conf/zoo.cfg
+          apache-zookeeper-3.7.1-bin/bin/zkServer.sh start
 
       - name: "Check environment"
         run: |

.gitignore

@@ -11,8 +11,6 @@ target/
 .settings/
 .project
 .classpath
-.externalToolBuilders
-maven-eclipse.xml
 
 # idea ignore
 .idea/
@@ -52,6 +50,3 @@ dubbo-demo/dubbo-demo-triple/build/*
 
 .git.exec.error
 
-# log files generated by testcase.
-dubbo-rpc/dubbo-rpc-api/custom-access.log*
-

.licenserc.yaml

@@ -38,6 +38,7 @@ header:
     - '**/*.fc'
     - '**/*.javascript'
     - '**/*.properties'
+    - '**/*.thrift'
     - '**/*.sh'
     - '**/*.bat'
     - '**/*.md'
@@ -96,10 +97,13 @@ header:
     - 'dubbo-maven-plugin/src/main/java/org/apache/dubbo/maven/plugin/aot/RunArguments.java'
     - 'dubbo-maven-plugin/src/main/java/org/apache/dubbo/maven/plugin/aot/RunProcess.java'
     - 'dubbo-native/src/main/java/org/apache/dubbo/aot/generate/BasicJsonWriter.java'
-    - 'dubbo-native/src/main/java/org/apache/dubbo/aot/generate/ExecutableMode.java'
-    - 'dubbo-native/src/main/java/org/apache/dubbo/aot/generate/MemberCategory.java'
+    - 'dubbo-native/src/main/java/org/apache/dubbo/aot/api/ExecutableMode.java'
+    - 'dubbo-native/src/main/java/org/apache/dubbo/aot/api/MemberCategory.java'
     - 'dubbo-metrics/dubbo-metrics-api/src/main/java/org/apache/dubbo/metrics/aggregate/DubboMergingDigest.java'
     - 'dubbo-metrics/dubbo-metrics-api/src/main/java/org/apache/dubbo/metrics/aggregate/DubboAbstractTDigest.java'
+    - 'dubbo-annotation-processor/src/main/java/org/apache/dubbo/annotation/permit/**'
+    - 'dubbo-common/src/main/java/org/apache/dubbo/common/logger/helpers/FormattingTuple.java'
+    - 'dubbo-common/src/main/java/org/apache/dubbo/common/logger/helpers/MessageFormatter.java'
 
   comment: on-failure
 
@@ -198,10 +202,26 @@ dependency:
       license: Apache-2.0
     - name: org.sonatype.plexus:plexus-cipher
       license: Apache-2.0
+    - name: com.alibaba.csp:sentinel-apache-dubbo3-adapter
+      license: Apache-2.0
+    - name: com.alibaba.csp:sentinel-transport-simple-http
+      license: Apache-2.0
+    - name: com.alibaba.csp:sentinel-transport-common
+      license: Apache-2.0
+    - name: com.alibaba.csp:sentinel-datasource-extension
+      license: Apache-2.0
+    - name: com.alibaba.csp:sentinel-core
+      license: Apache-2.0
     - name: com.google.protobuf:protobuf-java
       license: BSD 3-clause
     - name: com.google.protobuf:protobuf-java-util
       license: BSD 3-clause
+    - name: org.antlr:antlr4
+      license: BSD 3-clause
+    - name: org.antlr:antlr-runtime
+      license: BSD 3-clause
+    - name: org.antlr:ST4
+      license: BSD 3-clause
     # multi license
     - name: org.javassist:javassist
       license: Apache-2.0

NOTICE

@@ -1,10 +1,10 @@
 Apache Dubbo
-Copyright 2018-2024 The Apache Software Foundation
+Copyright 2018-2023 The Apache Software Foundation
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).
 
-This product contains code form the Netty Project:
+This product contains code from the Netty Project:
 
 The Netty Project
 =================

PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,8 @@
+## What is the purpose of the change?
+
+
+## Checklist
+- [x] Make sure there is a [GitHub_issue](https://github.com/apache/dubbo/issues) field for the change.
+- [x] Write a pull request description that is detailed enough to understand what the pull request does, how, and why.
+- [x] Write necessary unit-test to verify your logic correction. If the new feature or significant change is committed, please remember to add sample in [dubbo samples](https://github.com/apache/dubbo-samples) project.
+- [x] Make sure gitHub actions can pass. [Why the workflow is failing and how to fix it?](./CONTRIBUTING.md)

README.md

@@ -6,267 +6,73 @@
 ![License](https://img.shields.io/github/license/alibaba/dubbo.svg)
 [![Average time to resolve an issue](http://isitmaintained.com/badge/resolution/apache/dubbo.svg)](http://isitmaintained.com/project/apache/dubbo "Average time to resolve an issue")
 [![Percentage of issues still open](http://isitmaintained.com/badge/open/apache/dubbo.svg)](http://isitmaintained.com/project/apache/dubbo "Percentage of issues still open")
+[![Tweet](https://img.shields.io/twitter/url/http/shields.io.svg?style=social)](https://twitter.com/intent/tweet?text=Apache%20Dubbo%20is%20a%20high-performance%2C%20java%20based%2C%20open%20source%20RPC%20framework.&url=http://dubbo.apache.org/&via=ApacheDubbo&hashtags=rpc,java,dubbo,micro-service)
+[![Twitter Follow](https://img.shields.io/twitter/follow/ApacheDubbo.svg?label=Follow&style=social&logoWidth=0)](https://twitter.com/intent/follow?screen_name=ApacheDubbo)
+[![Gitter](https://badges.gitter.im/alibaba/dubbo.svg)](https://gitter.im/alibaba/dubbo?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
 
-Apache Dubbo is a high-performance, Java-based open-source RPC framework. Please visit the [official site](http://dubbo.apache.org) for the quick start guide and documentation, as well as the [wiki](https://github.com/apache/dubbo/wiki) for news, FAQ, and release notes.
+Apache Dubbo is an easy-to-use Web and RPC framework that provides multiple
+language implementations(Java, [Go](https://github.com/apache/dubbo-go), [Rust](https://github.com/apache/dubbo-rust), [Node.js](https://github.com/apache/dubbo-js), [Web](https://github.com/apache/dubbo-js)) for communication, service discovery, traffic management,
+observability, security, tools, and best practices for building enterprise-ready microservices.
 
-We are now collecting Dubbo user info to help us to improve Dubbo further. Kindly support us by providing your usage information on [Wanted: who's using dubbo](https://github.com/apache/dubbo/discussions/13842), thanks :)
+Visit [the official website](https://dubbo.apache.org/) for more information.
 
 ## Architecture
-
 ![Architecture](https://dubbo.apache.org/imgs/architecture.png)
 
-## Features
-
-* Transparent interface based RPC
-* Intelligent load balancing
-* Automatic service registration and discovery
-* High extensibility
-* Runtime traffic routing
-* Visualized service governance
+* Consumer and provider communicate with each other using RPC protocol like triple, tcp, rest, etc.
+* Consumers automatically trace provider instances registered in registries(Zookeeper, Nacos) and distribute traffic among them by following traffic strategies.
+* Rich features for monitoring and managing the cluster with dynamic configuration, metrics, tracing, security, and visualized console.
 
 ## Getting started
+Follow the instructions below to learn how to:
 
-The following code snippet comes from [Dubbo Samples](https://github.com/apache/dubbo-samples.git). You may clone the sample project and step into the `dubbo-samples-api` subdirectory before proceeding.
+### Programming with lightweight RPC API
+[5 minutes step-by-step guide](https://dubbo.apache.org/zh-cn/overview/quickstart/rpc/java)
 
-```bash
-git clone https://github.com/apache/dubbo-samples.git
-cd dubbo-samples/1-basic/dubbo-samples-api
-```
-
-There's a [README](https://github.com/apache/dubbo-samples/blob/389cd612f1ea57ee6e575005b32f195c442c35a2/1-basic/dubbo-samples-api/README.md) file under `dubbo-samples-api` directory. We recommend referencing the samples in that directory by following the below-mentioned instructions:
-
-### Maven dependency
-
-```xml
-<properties>
-    <dubbo.version>3.2.13-SNAPSHOT</dubbo.version>
-</properties>
-
-<dependencies>
-    <dependency>
-        <groupId>org.apache.dubbo</groupId>
-        <artifactId>dubbo</artifactId>
-        <version>${dubbo.version}</version>
-    </dependency>
-    <dependency>
-        <groupId>org.apache.dubbo</groupId>
-        <artifactId>dubbo-dependencies-zookeeper</artifactId>
-        <version>${dubbo.version}</version>
-        <type>pom</type>
-    </dependency>
-</dependencies>
-```
-
-### Define service interfaces
-
-```java
-package org.apache.dubbo.samples.api;
-
-public interface GreetingsService {
-    String sayHi(String name);
-}
-```
-
-*See [api/GreetingsService.java](https://github.com/apache/dubbo-samples/blob/389cd612f1ea57ee6e575005b32f195c442c35a2/1-basic/dubbo-samples-api/src/main/java/org/apache/dubbo/samples/api/GreetingsService.java) on GitHub.*
-
-### Implement service interface for the provider
-
-```java
-package org.apache.dubbo.samples.provider;
-
-import org.apache.dubbo.samples.api.GreetingsService;
-
-public class GreetingsServiceImpl implements GreetingsService {
-    @Override
-    public String sayHi(String name) {
-        return "hi, " + name;
-    }
-}
-```
-
-*See [provider/GreetingsServiceImpl.java](https://github.com/apache/dubbo-samples/blob/389cd612f1ea57ee6e575005b32f195c442c35a2/1-basic/dubbo-samples-api/src/main/java/org/apache/dubbo/samples/provider/GreetingsServiceImpl.java) on GitHub.*
-
-### Start service provider
-
-```java
-package org.apache.dubbo.samples.provider;
+Dubbo supports building RPC services with only a few lines of code while depending only on a lightweight SDK (<10MB). The protocol on the wire can be [Triple](https://dubbo.apache.org/zh-cn/overview/reference/protocols/triple/)(fully gRPC compatible and HTTP-friendly), Dubbo2(TCP), REST, or any protocol of your choice.
 
 
-import org.apache.dubbo.config.ApplicationConfig;
-import org.apache.dubbo.config.RegistryConfig;
-import org.apache.dubbo.config.ServiceConfig;
-import org.apache.dubbo.samples.api.GreetingsService;
+### Building a microservice application with Spring Boot
+[5 minutes step-by-step guide](https://dubbo.apache.org/zh-cn/overview/quickstart/microservice)
 
-import java.util.concurrent.CountDownLatch;
+It's highly recommended to start your microservice application with the Spring Boot Starter `dubbo-spring-boot-starter` provided by Dubbo. With only a single dependency and yaml file, and optionally a bunch of other useful spring boot starters, you can enable all of the Dubo features like service discovery, observability, tracing, etc.
 
-public class Application {
-    private static String zookeeperHost = System.getProperty("zookeeper.address", "127.0.0.1");
+Next, learn how to [deploy](https://dubbo.apache.org/zh-cn/overview/tasks/deploy/), [monitor](https://dubbo.apache.org/zh-cn/overview/tasks/observability/), and [manage the traffic](https://dubbo.apache.org/zh-cn/overview/tasks/traffic-management/) of your Dubbo application and cluster.
 
-    public static void main(String[] args) throws Exception {
-        ServiceConfig<GreetingsService> service = new ServiceConfig<>();
-        service.setApplication(new ApplicationConfig("first-dubbo-provider"));
-        service.setRegistry(new RegistryConfig("zookeeper://" + zookeeperHost + ":2181"));
-        service.setInterface(GreetingsService.class);
-        service.setRef(new GreetingsServiceImpl());
-        service.export();
+## More Features
+Get more details by visiting the links below to get your hands dirty with some well-designed tasks on our website.
 
-        System.out.println("dubbo service started");
-        new CountDownLatch(1).await();
-    }
-}
-```
+* [Launch a Dubbo project](https://dubbo.apache.org/zh-cn/overview/tasks/develop/template/)
+* [RPC protocols](https://dubbo.apache.org/zh-cn/overview/core-features/protocols/)
+* [Traffic management](https://dubbo.apache.org/zh-cn/overview/core-features/traffic/)
+* [Service discovery](https://dubbo.apache.org/zh-cn/overview/core-features/service-discovery/)
+* [Observability](https://dubbo.apache.org/zh-cn/overview/core-features/observability/)
+* [Extensibility](https://dubbo.apache.org/zh-cn/overview/core-features/extensibility/)
+* [Security](https://dubbo.apache.org/zh-cn/overview/core-features/security/)
+* [Visualized console and control plane](https://dubbo.apache.org/zh-cn/overview/reference/admin/)
+* [Kubernetes and Service mesh](https://dubbo.apache.org/zh-cn/overview/core-features/service-mesh/)
 
-*See [provider/Application.java](https://github.com/apache/dubbo-samples/blob/389cd612f1ea57ee6e575005b32f195c442c35a2/1-basic/dubbo-samples-spring-xml/src/main/java/org/apache/dubbo/samples/provider/Application.java) on GitHub.*
+## Which Dubbo version should I use?
+| **Dubbo3** | **JDK** | **Dependencies** | **Description** |
+| --- | --- | --- | --- |
+| 3.3.0-beta| 1.8 ～ 17 | [dependency list](https://github.com/apache/dubbo/blob/3.3/dubbo-dependencies-bom/pom.xml#L94)  | **- Unstable version** <br/> **- Features** <br/> &nbsp;&nbsp;  - Triple - gRPC and cURL compatible.<br/>  &nbsp;&nbsp;  - Rest-style programming support.<br/>  &nbsp;&nbsp;  - Spring Boot Starters. |
+| 3.2.5 | 1.8 ～ 17 | [dependency list](https://github.com/apache/dubbo/blob/dubbo-3.2.5/dubbo-dependencies-bom/pom.xml#L94) | **- Stable version (active)** <br/> **- Features** <br/> &nbsp;&nbsp;- Out-of-box metrics and tracing support.<br/> &nbsp;&nbsp;- Threadpool Isolation<br/> &nbsp;&nbsp;- 30% performance<br/> &nbsp;&nbsp;- Native Image|
+| 3.1.11 | 1.8 ～ 11 | [dependency list](https://github.com/apache/dubbo/blob/dubbo-3.2.11/dubbo-dependencies-bom/pom.xml#L94) | **Stable version (not active)** |
 
-### Build and run the provider
+| **Dubbo2** | **JDK** | **Dependencies** | **Description** |
+| --- | --- | --- | --- |
+| 2.7.23 | 1.8 | [dependency list](https://github.com/apache/dubbo/blob/dubbo-2.7.23/dubbo-dependencies-bom/pom.xml#L92) | EOL |
+| 2.6.x, 2.5.x | 1.6 ～ 1.7 |  | EOL |
 
-```bash
-mvn clean package
-mvn -Djava.net.preferIPv4Stack=true -Dexec.mainClass=org.apache.dubbo.samples.provider.Application exec:java
-```
-
-### Call remote service in the consumer
-
-```java
-package org.apache.dubbo.samples.client;
-
-
-import org.apache.dubbo.config.ApplicationConfig;
-import org.apache.dubbo.config.ReferenceConfig;
-import org.apache.dubbo.config.RegistryConfig;
-import org.apache.dubbo.samples.api.GreetingsService;
-
-public class Application {
-    private static String zookeeperHost = System.getProperty("zookeeper.address", "127.0.0.1");
-
-    public static void main(String[] args) {
-        ReferenceConfig<GreetingsService> reference = new ReferenceConfig<>();
-        reference.setApplication(new ApplicationConfig("first-dubbo-consumer"));
-        reference.setRegistry(new RegistryConfig("zookeeper://" + zookeeperHost + ":2181"));
-        reference.setInterface(GreetingsService.class);
-        GreetingsService service = reference.get();
-        String message = service.sayHi("dubbo");
-        System.out.println(message);
-    }
-}
-```
-*See [client/Application.java](https://github.com/apache/dubbo-samples/blob/389cd612f1ea57ee6e575005b32f195c442c35a2/1-basic/dubbo-samples-api/src/main/java/org/apache/dubbo/samples/client/Application.java) on GitHub.*
-
-### Build and run the consumer
-
-```bash
-mvn clean package
-mvn -Djava.net.preferIPv4Stack=true -Dexec.mainClass=org.apache.dubbo.samples.client.Application exec:java
-```
-
-The consumer will print out `hi, dubbo` on the screen.
-
-
-### Next steps
-
-* [Your first Dubbo application](https://dubbo.apache.org/en/blog/2018/08/07/dubbo-101/) - A 101 tutorial to reveal more details, with the same code above.
-* [Dubbo user manual](https://dubbo.apache.org/en/overview/what/) - How to use Dubbo and all its features.
-* [Dubbo developer guide](https://dubbo.apache.org/en/docs3-v2/java-sdk/) - How to involve in Dubbo development.
-* [Dubbo admin manual](https://dubbo.apache.org/en/docs/v2.7/admin/ops/) - How to admin and manage Dubbo services.
-
-## Building
-
-If you want to try out the cutting-edge features, you can build with the following commands. (Java 1.8 is needed to build the master branch)
-
-```
-  mvn clean install
-```
-
-## Recommended Test Environment
-To avoid intermittent test failures (i.e., flaky tests), it is recommended to have a machine or virtual machine with the following specifications:
-
-* Minimum of 2CPUs.
-* Minimum of 2Gb of RAM.
-
-### How does the Dubbo Community collaborate?
-
-The Dubbo Community primarily communicates on GitHub through issues, discussions, and pull requests.
-
-- Issues: We use issues to track bugs and tasks. Any **work-related** item is associated with an issue.
-- Discussions: We use discussions for questions, early proposals, and announcements. Any **idea-related** item is associated with a discussion.
-- Pull Requests: We use pull requests to merge a set of changes from contributors into Dubbo.
-
-We have also implemented [a project board](https://github.com/orgs/apache/projects/337) to monitor all the items.
-
-Any essential changes should be discussed on the mailing list before they happen.
-
-### Seeking for help
-
-If you have questions such as:
-
-- What is Dubbo?
-- How do I use Dubbo?
-- Why did an unexpected result occur?
-
-Please start a discussion at https://github.com/apache/dubbo/discussions.
-
-However, if you encounter the following situations:
-
-- You're certain there's a bug that Dubbo needs to fix,
-- You believe a feature could be enhanced,
-- You have a detailed proposal for improving Dubbo,
-
-Please open an issue at https://github.com/apache/dubbo/issues.
-
-To ask effective questions, we recommend reading **[How To Ask Questions The Smart Way](https://github.com/selfteaching/How-To-Ask-Questions-The-Smart-Way/blob/master/How-To-Ask-Questions-The-Smart-Way.md)** first.
-
-### Contribution
-
-- Browse the "help wanted" tasks in the [Dubbo project board](https://github.com/orgs/apache/projects/337).
-- Participate in discussions on the mailing list. See the subscription [guide](https://github.com/apache/dubbo/wiki/Mailing-list-subscription-guide).
-- Respond to queries in the [discussions](https://github.com/apache/dubbo/issues).
-- Resolve bugs reported in [issues](https://github.com/apache/dubbo/issues) and send us a pull request.
-- Review existing [pull requests](https://github.com/apache/dubbo/pulls).
-- Enhance the [website](https://github.com/apache/dubbo-website). We typically need:
-    - Blog posts
-    - Translations for documentation
-    - Use cases showcasing Dubbo integration in enterprise systems.
-- Improve the [dubbo-admin](https://github.com/apache/dubbo-admin).
-- Contribute to the projects listed in the [ecosystem](https://github.com/apache/?q=dubbo&type=all&language=&sort=).
-- Any other forms of contribution not listed above are also welcome.
-- If you're interested in contributing, please send an email to [dev@dubbo.apache.org](mailto:dev@dubbo.apache.org) to let us know!
-
-For further details, please refer our [guide](https://github.com/apache/dubbo/blob/master/CONTRIBUTING.md) about how to contribute Dubbo.
-
-## Reporting bugs
-
-Please follow the [template](https://github.com/apache/dubbo/issues/new?template=dubbo-issue-report-template.md) for reporting any issues.
-
-## Reporting a security vulnerability
-
-Please report security vulnerabilities to [us](mailto:security@dubbo.apache.org) privately.
+## Contributing
+See [CONTRIBUTING](https://github.com/apache/dubbo/blob/master/CONTRIBUTING.md) for details on submitting patches and the contribution workflow.
 
 ## Contact
-
-* Mailing list:
-    * dev list: for dev/user discussion. [subscribe](mailto:dev-subscribe@dubbo.apache.org), [unsubscribe](mailto:dev-unsubscribe@dubbo.apache.org), [archive](https://lists.apache.org/list.html?dev@dubbo.apache.org),  [guide](https://github.com/apache/dubbo/wiki/Mailing-list-subscription-guide)
-
-* Bugs: [Issues](https://github.com/apache/dubbo/issues/new?template=dubbo-issue-report-template.md)
-* Gitter: [Gitter channel](https://gitter.im/alibaba/dubbo)
+* WeChat: apachedubbo
+* DingTalk group: 37290003945
+* Mailing list: [guide](https://dubbo.apache.org/zh-cn/contact/)
 * Twitter: [@ApacheDubbo](https://twitter.com/ApacheDubbo)
-
-## Dubbo ecosystem
-
-* [Dubbo Ecosystem Entry](https://github.com/apache?utf8=%E2%9C%93&q=dubbo&type=&language=) - A GitHub group `dubbo` to gather all Dubbo relevant projects not appropriate in [apache](https://github.com/apache) group yet
-* [Dubbo Website](https://github.com/apache/dubbo-website) - Apache Dubbo official website
-* [Dubbo Samples](https://github.com/apache/dubbo-samples) - samples for Apache Dubbo
-* [Dubbo Admin](https://github.com/apache/dubbo-admin) - The reference implementation for Dubbo admin
-* [Dubbo Awesome](https://github.com/apache/dubbo-awesome) - Dubbo's slides and video links in Meetup
-
-#### Language
-
-* [Go](https://github.com/apache/dubbo-go) (recommended)
-* [Rust](https://github.com/apache/dubbo-rust)
-* [Node.js](https://github.com/apache/dubbo-js)
-* [Python](https://github.com/dubbo/py-client-for-apache-dubbo)
-* [PHP](https://github.com/apache/dubbo-php-framework)
-* [Erlang](https://github.com/apache/dubbo-erlang)
+* Security issues: please mail to [us](mailto:security@dubbo.apache.org) privately.
 
 ## License
-
-Apache Dubbo software is licensed under the Apache License Version 2.0. See the [LICENSE](https://github.com/apache/dubbo/blob/master/LICENSE) file for details.
+Apache Dubbo is licensed under the Apache License Version 2.0. See the [LICENSE](https://github.com/apache/dubbo/blob/master/LICENSE) file for details.

SECURITY.md

@@ -5,15 +5,13 @@
 Below is a table that shows versions that we accept security fixes.
 
 | Version | Supported          |
-|---------| ------------------ |
-| 3.3.x   | :white_check_mark: |
-| 3.2.x   | :white_check_mark: |
-| 3.1.x   | :white_check_mark: |
-| 3.0.x   | :x: |
-| 2.7.x   | :x: |
-| 2.6.x   | :x: |
+| ------- | ------------------ |
+| 3.0.x   | :white_check_mark: |
+| 2.7.x   | :white_check_mark: |
+| 2.6.x   | :white_check_mark: |
 | 2.5.x   | :x: |
 
+
 ## Reporting a Vulnerability
 
 The Apache Software Foundation takes a rigorous standpoint in annihilating the security issues in its software projects. Apache Dubbo is highly sensitive and forthcoming to issues pertaining to its features and functionality.

codecov.yml

@@ -29,6 +29,6 @@ ignore:
   - "**/dubbo-test/**"
   - "**/dubbo-compatible/**"
   - "**/dubbo-native/**"
-  - "**/dubbo-native-plugin/**"
   - "**/dubbo-common/src/main/java/org/apache/dubbo/common/json/*.java" #  internal JSON impl is deprecate, ignore test coverage for them
   - "**/dubbo-config/dubbo-config-spring/src/main/java/org/apache/dubbo/config/spring/AnnotationBean.java" # Deprecated
+  - "**/dubbo-rpc/dubbo-rpc-thrift/**"

dubbo-annotation-processor/pom.xml

@@ -0,0 +1,165 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+  Licensed to the Apache Software Foundation (ASF) under one or more
+  contributor license agreements.  See the NOTICE file distributed with
+  this work for additional information regarding copyright ownership.
+  The ASF licenses this file to You under the Apache License, Version 2.0
+  (the "License"); you may not use this file except in compliance with
+  the License.  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.apache.dubbo</groupId>
+    <artifactId>dubbo-annotation-processor</artifactId>
+    <version>1.0.0</version>
+
+    <properties>
+        <maven.compiler.source>8</maven.compiler.source>
+        <maven.compiler.target>8</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+
+        <!--  System dependencies may cause problems in checkstyle. -->
+        <checkstyle.skip>true</checkstyle.skip>
+        <checkstyle_unix.skip>true</checkstyle_unix.skip>
+        <rat.skip>true</rat.skip>
+        <jacoco.skip>true</jacoco.skip>
+
+        <maven.deploy.skip>true</maven.deploy.skip>
+
+        <junit_jupiter_version>5.9.0</junit_jupiter_version>
+        <javassist_version>3.29.2-GA</javassist_version>
+    </properties>
+
+    <packaging>jar</packaging>
+
+    <dependencies>
+        <!-- JUnit Jupiter Engine to depend on the JUnit5 engine and JUnit 5 API -->
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-engine</artifactId>
+            <version>${junit_jupiter_version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-api</artifactId>
+            <version>${junit_jupiter_version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter-params</artifactId>
+            <version>${junit_jupiter_version}</version>
+            <scope>test</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>org.javassist</groupId>
+            <artifactId>javassist</artifactId>
+            <version>${javassist_version}</version>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.10.1</version>
+                <configuration>
+                    <proc>none</proc>
+                    <fork>true</fork>
+                </configuration>
+            </plugin>
+        </plugins>
+    </build>
+
+    <profiles>
+        <profile>
+            <id>default-profile-in-jdk-8</id>
+            <activation>
+                <file>
+                    <exists>${java.home}/../lib/tools.jar</exists>
+                </file>
+                <jdk>(, 9)</jdk>
+            </activation>
+            <properties>
+                <toolsjar>${java.home}/../lib/tools.jar</toolsjar>
+            </properties>
+
+            <dependencies>
+                <dependency>
+                    <groupId>javac</groupId>
+                    <artifactId>javac</artifactId>
+                    <version>1.0</version>
+                    <scope>system</scope>
+                    <systemPath>${toolsjar}</systemPath>
+                </dependency>
+            </dependencies>
+        </profile>
+
+        <profile>
+            <id>legacy-apple-jdk-profile</id>
+            <activation>
+                <activeByDefault>false</activeByDefault>
+                <file>
+                    <exists>${java.home}/../Classes/classes.jar</exists>
+                </file>
+                <jdk>(, 9)</jdk>
+            </activation>
+
+            <properties>
+                <toolsjar>${java.home}/../Classes/classes.jar</toolsjar>
+            </properties>
+
+            <dependencies>
+                <dependency>
+                    <groupId>javac</groupId>
+                    <artifactId>javac</artifactId>
+                    <version>1.0</version>
+                    <scope>system</scope>
+                    <systemPath>${toolsjar}</systemPath>
+                </dependency>
+            </dependencies>
+        </profile>
+
+        <profile>
+            <id>add-export-greater-than-9</id>
+            <activation>
+                <activeByDefault>false</activeByDefault>
+                <jdk>[9, )</jdk>
+            </activation>
+
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-compiler-plugin</artifactId>
+                        <version>3.10.1</version>
+                        <configuration>
+                            <fork>true</fork>
+                            <proc>none</proc>
+                        </configuration>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
+    </profiles>
+
+</project>

dubbo-annotation-processor/src/main/java/org/apache/dubbo/annotation/AnnotationProcessingHandler.java

@@ -14,28 +14,31 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.metadata.annotation.processing.model;
 
-import java.util.Collection;
-import java.util.Deque;
-import java.util.List;
-import java.util.Queue;
+package org.apache.dubbo.annotation;
+
+import javax.lang.model.element.Element;
+import java.lang.annotation.Annotation;
 import java.util.Set;
 
 /**
- * {@link Collection} Type Model
- *
- * @since 2.7.6
+ * Represents an annotation processing handler, which is invoked by DispatchingAnnotationProcessor.
  */
-public class CollectionTypeModel {
+public interface AnnotationProcessingHandler {
 
-    private Collection<String> strings; // The composite element is simple type
+    /**
+     * Set the annotations that this handler will handle.
+     *
+     * @return annotations to handle
+     */
+    Set<Class<? extends Annotation>> getAnnotationsToHandle();
 
-    private List<Color> colors; // The composite element is Enum type
-
-    private Queue<PrimitiveTypeModel> primitiveTypeModels; // The composite element is POJO type
-
-    private Deque<Model> models; // The composite element is hierarchical POJO type
-
-    private Set<Model[]> modelArrays; // The composite element is hierarchical POJO type
+    /**
+     * Formal processing method.
+     *
+     * @param elements the elements that annotated by the annotations of getAnnotationsToHandle()
+     * @param annotationProcessorContext the annotation processor context object (Javac object encapsulation)
+     */
+    void process(Set<Element> elements,
+                 AnnotationProcessorContext annotationProcessorContext);
 }

dubbo-annotation-processor/src/main/java/org/apache/dubbo/annotation/AnnotationProcessorContext.java

@@ -0,0 +1,139 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.dubbo.annotation;
+
+import com.sun.source.util.Trees;
+import com.sun.tools.javac.api.JavacTrees;
+import com.sun.tools.javac.processing.JavacProcessingEnvironment;
+import com.sun.tools.javac.tree.TreeMaker;
+import com.sun.tools.javac.util.Context;
+import com.sun.tools.javac.util.Names;
+
+import javax.annotation.processing.ProcessingEnvironment;
+import java.lang.reflect.Method;
+import java.util.Objects;
+
+/**
+ * The Context Object of Annotation Processor, which stores objects related to javac.
+ */
+public class AnnotationProcessorContext {
+    private JavacProcessingEnvironment javacProcessingEnvironment;
+    private JavacTrees javacTrees;
+    private TreeMaker treeMaker;
+    private Names names;
+    private Context javacContext;
+    private Trees trees;
+
+    private AnnotationProcessorContext() { }
+
+    private static <T> T jbUnwrap(Class<? extends T> iface, T wrapper) {
+        T unwrapped = null;
+        try {
+            final Class<?> apiWrappers = wrapper.getClass().getClassLoader().loadClass("org.jetbrains.jps.javac.APIWrappers");
+            final Method unwrapMethod = apiWrappers.getDeclaredMethod("unwrap", Class.class, Object.class);
+            unwrapped = iface.cast(unwrapMethod.invoke(null, iface, wrapper));
+        } catch (Throwable ignored) {
+        }
+
+        return unwrapped != null ? unwrapped : wrapper;
+    }
+
+    public static AnnotationProcessorContext fromProcessingEnvironment(ProcessingEnvironment processingEnv) {
+        AnnotationProcessorContext apContext = new AnnotationProcessorContext();
+
+        Object procEnvToUnwrap = processingEnv.getClass() == JavacProcessingEnvironment.class ?
+            processingEnv : jbUnwrap(JavacProcessingEnvironment.class, processingEnv);
+
+        JavacProcessingEnvironment jcProcessingEnvironment = (JavacProcessingEnvironment) procEnvToUnwrap;
+
+        Context context = jcProcessingEnvironment.getContext();
+
+        apContext.javacProcessingEnvironment = jcProcessingEnvironment;
+
+        apContext.javacContext = context;
+        apContext.javacTrees = JavacTrees.instance(jcProcessingEnvironment);
+        apContext.treeMaker = TreeMaker.instance(context);
+        apContext.names = Names.instance(context);
+
+        apContext.trees = Trees.instance(jcProcessingEnvironment);
+
+        return apContext;
+    }
+
+    // Auto-generated methods.
+
+    public JavacTrees getJavacTrees() {
+        return javacTrees;
+    }
+
+    public TreeMaker getTreeMaker() {
+        return treeMaker;
+    }
+
+    public Names getNames() {
+        return names;
+    }
+
+    public Context getJavacContext() {
+        return javacContext;
+    }
+
+    public Trees getTrees() {
+        return trees;
+    }
+
+    public JavacProcessingEnvironment getJavacProcessingEnvironment() {
+        return javacProcessingEnvironment;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        AnnotationProcessorContext context = (AnnotationProcessorContext) o;
+
+        if (!Objects.equals(javacTrees, context.javacTrees)) return false;
+        if (!Objects.equals(treeMaker, context.treeMaker)) return false;
+        if (!Objects.equals(names, context.names)) return false;
+        if (!Objects.equals(javacContext, context.javacContext))
+            return false;
+        return Objects.equals(trees, context.trees);
+    }
+
+    @Override
+    public int hashCode() {
+        int result = javacTrees != null ? javacTrees.hashCode() : 0;
+        result = 31 * result + (treeMaker != null ? treeMaker.hashCode() : 0);
+        result = 31 * result + (names != null ? names.hashCode() : 0);
+        result = 31 * result + (javacContext != null ? javacContext.hashCode() : 0);
+        result = 31 * result + (trees != null ? trees.hashCode() : 0);
+        return result;
+    }
+
+    @Override
+    public String toString() {
+        return "AnnotationProcessorContext{" +
+            "javacTrees=" + javacTrees +
+            ", treeMaker=" + treeMaker +
+            ", names=" + names +
+            ", javacContext=" + javacContext +
+            ", trees=" + trees +
+            '}';
+    }
+}

dubbo-annotation-processor/src/main/java/org/apache/dubbo/annotation/DispatchingAnnotationProcessor.java

@@ -0,0 +1,162 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.dubbo.annotation;
+
+import org.apache.dubbo.annotation.permit.Permit;
+import org.apache.dubbo.annotation.util.FileUtils;
+
+import com.sun.tools.javac.code.Symbol;
+import com.sun.tools.javac.processing.JavacRoundEnvironment;
+
+import javax.annotation.processing.AbstractProcessor;
+import javax.annotation.processing.ProcessingEnvironment;
+import javax.annotation.processing.RoundEnvironment;
+import javax.annotation.processing.SupportedAnnotationTypes;
+import javax.lang.model.SourceVersion;
+import javax.lang.model.element.Element;
+import javax.lang.model.element.TypeElement;
+import javax.tools.Diagnostic;
+import java.lang.annotation.Annotation;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Collectors;
+
+/**
+ * Dispatching annotation processor, which uses a file to locate handlers and invoke them.
+ */
+@SupportedAnnotationTypes("*")
+public class DispatchingAnnotationProcessor extends AbstractProcessor {
+
+    private static Set<AnnotationProcessingHandler> handlers;
+
+    private static Set<AnnotationProcessingHandler> loadHandlers() {
+        List<String> classNames = FileUtils.loadConfigurationFileInResources("handlers.cfg");
+        Set<AnnotationProcessingHandler> tempHandlers = new HashSet<>();
+
+        for (String clsName : classNames) {
+            try {
+                Class<? extends AnnotationProcessingHandler> cls = (Class<? extends AnnotationProcessingHandler>) Class.forName(clsName);
+                AnnotationProcessingHandler r = cls.getConstructor().newInstance();
+
+                tempHandlers.add(r);
+
+            } catch (InstantiationException | NoSuchMethodException | InvocationTargetException |
+                     IllegalAccessException | ClassNotFoundException e) {
+                throw new RuntimeException(e);
+            }
+        }
+
+        return Collections.unmodifiableSet(tempHandlers);
+    }
+
+    private AnnotationProcessorContext apContext;
+
+    @Override
+    public synchronized void init(ProcessingEnvironment processingEnv) {
+        Permit.addOpens();
+        super.init(processingEnv);
+
+        if (processingEnv.getClass().getName().startsWith("org.eclipse.jdt.")) {
+            // Don't run on ECJ, since this processor is javac based.
+            processingEnv
+                .getMessager()
+                .printMessage(Diagnostic.Kind.WARNING, "The Annotation processor doesn't support ECJ.");
+
+            return;
+        }
+
+        if (handlers == null) {
+            handlers = loadHandlers();
+        }
+        
+        apContext = AnnotationProcessorContext.fromProcessingEnvironment(processingEnv);
+    }
+
+    @Override
+    public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
+
+        if (processingEnv.getClass().getName().startsWith("org.eclipse.jdt.")) {
+            // Don't run on ECJ, since this processor is javac based.
+            return false;
+        }
+
+        for (AnnotationProcessingHandler i : handlers) {
+            Set<Element> elements = new HashSet<>(16);
+
+            for (Class<? extends Annotation> annotationClass : i.getAnnotationsToHandle()) {
+                elements.addAll(getElementsAnnotatedWith(annotationClass, roundEnv));
+            }
+
+            i.process(elements, apContext);
+        }
+
+        return false;
+    }
+
+    /**
+     * A hack to make comment only .java file pass the compilation by skipping package symbol scan.
+     *
+     * @param annotationClass the annotation class to find
+     * @param roundEnvironment the javac's round environment
+     * @return the elements annotated with specified annotation
+     */
+    private Set<? extends Element> getElementsAnnotatedWith(Class<? extends Annotation> annotationClass, RoundEnvironment roundEnvironment) {
+
+        TypeElement a = processingEnv.getElementUtils().getTypeElement(annotationClass.getCanonicalName());
+
+        // Detect the Javac's version.
+        if (Integer.parseInt(SourceVersion.latest().name().split("_")[1]) > 8) {
+            return roundEnvironment.getElementsAnnotatedWith(a);
+        }
+
+        Set<Element> result = Collections.emptySet();
+
+        try {
+            Class annotationSetScannerClass = Class.forName("com.sun.tools.javac.processing.JavacRoundEnvironment$AnnotationSetScanner");
+            Constructor scannerConstructor = Permit.getConstructor(annotationSetScannerClass, JavacRoundEnvironment.class, Set.class);
+            Object scanner = scannerConstructor.newInstance(roundEnvironment, result);
+
+            Set<? extends Element> rootElements1 = roundEnvironment
+                .getRootElements()
+                .stream()
+                .filter(x -> x.getClass() != Symbol.PackageSymbol.class)
+                .collect(Collectors.toSet());
+
+            for (Element element : rootElements1) {
+                Method scanningMethod = Permit.getMethod(annotationSetScannerClass, "scan", Element.class, TypeElement.class);
+                result = (Set<Element>) scanningMethod.invoke(scanner, element, a);
+            }
+
+        } catch (InstantiationException | NoSuchMethodException | ClassNotFoundException | InvocationTargetException |
+                 IllegalAccessException e) {
+            throw new RuntimeException(e);
+        }
+
+        return result;
+    }
+
+    @Override
+    public SourceVersion getSupportedSourceVersion() {
+        return SourceVersion.latestSupported();
+    }
+}

dubbo-annotation-processor/src/main/java/org/apache/dubbo/annotation/handler/DeprecatedHandler.java

@@ -0,0 +1,110 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.dubbo.annotation.handler;
+
+import org.apache.dubbo.annotation.AnnotationProcessingHandler;
+import org.apache.dubbo.annotation.AnnotationProcessorContext;
+import org.apache.dubbo.annotation.util.ASTUtils;
+
+import com.sun.tools.javac.code.Symbol;
+import com.sun.tools.javac.tree.JCTree;
+import com.sun.tools.javac.tree.TreeTranslator;
+
+import javax.lang.model.element.Element;
+import java.lang.annotation.Annotation;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * Handles @Deprecated annotation and adds logger warn call to the methods that are annotated with it.
+ */
+public class DeprecatedHandler implements AnnotationProcessingHandler {
+
+    @Override
+    public Set<Class<? extends Annotation>> getAnnotationsToHandle() {
+        return new HashSet<>(
+            Collections.singletonList(Deprecated.class)
+        );
+    }
+
+    @Override
+    public void process(Set<Element> elements, AnnotationProcessorContext apContext) {
+        for (Element element : elements) {
+            // Only interested in methods.
+            if (!(element instanceof Symbol.MethodSymbol)) {
+                continue;
+            }
+
+            Symbol.ClassSymbol classSymbol = (Symbol.ClassSymbol) element.getEnclosingElement();
+
+            ASTUtils.addImportStatement(apContext, classSymbol, "org.apache.dubbo.common", "DeprecatedMethodInvocationCounter");
+
+            JCTree methodTree = apContext.getJavacTrees().getTree(element);
+
+            methodTree.accept(new TreeTranslator() {
+                @Override
+                public void visitMethodDef(JCTree.JCMethodDecl jcMethodDecl) {
+
+                    JCTree.JCBlock block = jcMethodDecl.body;
+
+                    if (block == null) {
+                        // No method body. (i.e. interface method declaration.)
+                        return;
+                    }
+
+                    ASTUtils.insertStatementToHeadOfMethod(block, jcMethodDecl, generateCounterStatement(apContext, classSymbol, jcMethodDecl));
+                }
+            });
+        }
+    }
+
+    /**
+     * Generate an expression statement like this:
+     * <code>DeprecatedMethodInvocationCounter.onDeprecatedMethodCalled("....");
+     *
+     * @param originalMethodDecl the method declaration that will add logger statement
+     * @param apContext annotation processor context
+     * @param classSymbol the enclosing class that will be the logger's name
+     * @return generated expression statement
+     */
+    private JCTree.JCExpressionStatement generateCounterStatement(AnnotationProcessorContext apContext,
+                                                                  Symbol.ClassSymbol classSymbol,
+                                                                  JCTree.JCMethodDecl originalMethodDecl) {
+
+        JCTree.JCExpression fullStatement = apContext.getTreeMaker().Apply(
+            com.sun.tools.javac.util.List.nil(),
+
+            apContext.getTreeMaker().Select(
+                apContext.getTreeMaker().Ident(apContext.getNames().fromString("DeprecatedMethodInvocationCounter")),
+                apContext.getNames().fromString("onDeprecatedMethodCalled")
+            ),
+
+            com.sun.tools.javac.util.List.of(
+                apContext.getTreeMaker().Literal(getMethodDefinition(classSymbol, originalMethodDecl))
+            )
+        );
+
+        return apContext.getTreeMaker().Exec(fullStatement);
+    }
+
+    private String getMethodDefinition(Symbol.ClassSymbol classSymbol, JCTree.JCMethodDecl originalMethodDecl) {
+        return classSymbol.getQualifiedName() + "."
+            + originalMethodDecl.name.toString() + "(" + originalMethodDecl.params.toString() + ")";
+    }
+}

dubbo-annotation-processor/src/main/java/org/apache/dubbo/annotation/permit/Permit.java

@@ -0,0 +1,429 @@
+/*
+ * Authored by Project Lombok and licensed by MIT License, which is attached below:
+ *
+ * Copyright (C) 2018-2021 The Project Lombok Authors.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package org.apache.dubbo.annotation.permit;
+
+import org.apache.dubbo.annotation.permit.dummy.Parent;
+
+import sun.misc.Unsafe;
+
+import java.lang.reflect.AccessibleObject;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+// sunapi suppresses javac's warning about using Unsafe; 'all' suppresses eclipse's warning about the unspecified 'sunapi' key. Leave them both.
+// Yes, javac's definition of the word 'all' is quite contrary to what the dictionary says it means. 'all' does NOT include 'sunapi' according to javac.
+@SuppressWarnings({"sunapi", "all"})
+public class Permit {
+    private Permit() {
+    }
+
+
+    private static final long ACCESSIBLE_OVERRIDE_FIELD_OFFSET;
+    private static final IllegalAccessException INIT_ERROR;
+    private static final sun.misc.Unsafe UNSAFE = (sun.misc.Unsafe) reflectiveStaticFieldAccess(sun.misc.Unsafe.class, "theUnsafe");
+
+    static {
+        Field f;
+        long g;
+        Throwable ex;
+
+        try {
+            g = getOverrideFieldOffset();
+            ex = null;
+        } catch (Throwable t) {
+            f = null;
+            g = -1L;
+            ex = t;
+        }
+
+        ACCESSIBLE_OVERRIDE_FIELD_OFFSET = g;
+        if (ex == null) INIT_ERROR = null;
+        else if (ex instanceof IllegalAccessException) INIT_ERROR = (IllegalAccessException) ex;
+        else {
+            INIT_ERROR = new IllegalAccessException("Cannot initialize Unsafe-based permit");
+            INIT_ERROR.initCause(ex);
+        }
+    }
+
+    public static <T extends AccessibleObject> T setAccessible(T accessor) {
+        if (INIT_ERROR == null) {
+            UNSAFE.putBoolean(accessor, ACCESSIBLE_OVERRIDE_FIELD_OFFSET, true);
+        } else {
+            accessor.setAccessible(true);
+        }
+
+        return accessor;
+    }
+
+    private static long getOverrideFieldOffset() throws Throwable {
+        Field f = null;
+        Throwable saved = null;
+        try {
+            f = AccessibleObject.class.getDeclaredField("override");
+        } catch (Throwable t) {
+            saved = t;
+        }
+
+        if (f != null) {
+            return UNSAFE.objectFieldOffset(f);
+        }
+        // The below seems very risky, but for all AccessibleObjects in java today it does work, and starting with JDK12, making the field accessible is no longer possible.
+        try {
+            return UNSAFE.objectFieldOffset(Fake.class.getDeclaredField("override"));
+        } catch (Throwable t) {
+            throw saved;
+        }
+    }
+
+    static class Fake {
+        boolean override;
+        Object accessCheckCache;
+    }
+
+    public static Method getMethod(Class<?> c, String mName, Class<?>... parameterTypes) throws NoSuchMethodException {
+        Method m = null;
+        Class<?> oc = c;
+        while (c != null) {
+            try {
+                m = c.getDeclaredMethod(mName, parameterTypes);
+                break;
+            } catch (NoSuchMethodException e) {
+            }
+            c = c.getSuperclass();
+        }
+
+        if (m == null) throw new NoSuchMethodException(oc.getName() + " :: " + mName + "(args)");
+        return setAccessible(m);
+    }
+
+    public static Method permissiveGetMethod(Class<?> c, String mName, Class<?>... parameterTypes) {
+        try {
+            return getMethod(c, mName, parameterTypes);
+        } catch (Exception ignore) {
+            return null;
+        }
+    }
+
+    public static Field getField(Class<?> c, String fName) throws NoSuchFieldException {
+        Field f = null;
+        Class<?> oc = c;
+        while (c != null) {
+            try {
+                f = c.getDeclaredField(fName);
+                break;
+            } catch (NoSuchFieldException e) {
+            }
+            c = c.getSuperclass();
+        }
+
+        if (f == null) throw new NoSuchFieldException(oc.getName() + " :: " + fName);
+
+        return setAccessible(f);
+    }
+
+    public static Field permissiveGetField(Class<?> c, String fName) {
+        try {
+            return getField(c, fName);
+        } catch (Exception ignore) {
+            return null;
+        }
+    }
+
+    public static <T> T permissiveReadField(Class<T> type, Field f, Object instance) {
+        try {
+            return type.cast(f.get(instance));
+        } catch (Exception ignore) {
+            return null;
+        }
+    }
+
+    public static <T> Constructor<T> getConstructor(Class<T> c, Class<?>... parameterTypes) throws NoSuchMethodException {
+        return setAccessible(c.getDeclaredConstructor(parameterTypes));
+    }
+
+    private static Object reflectiveStaticFieldAccess(Class<?> c, String fName) {
+        try {
+            Field f = c.getDeclaredField(fName);
+            f.setAccessible(true);
+            return f.get(null);
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
+    public static boolean isDebugReflection() {
+        return !"false".equals(System.getProperty("lombok.debug.reflection", "false"));
+    }
+
+    public static void handleReflectionDebug(Throwable t, Throwable initError) {
+        if (!isDebugReflection()) return;
+
+        System.err.println("** LOMBOK REFLECTION exception: " + t.getClass() + ": " + (t.getMessage() == null ? "(no message)" : t.getMessage()));
+        t.printStackTrace(System.err);
+        if (initError != null) {
+            System.err.println("*** ADDITIONALLY, exception occurred setting up reflection: ");
+            initError.printStackTrace(System.err);
+        }
+    }
+
+    public static Object invoke(Method m, Object receiver, Object... args) throws IllegalAccessException, InvocationTargetException {
+        return invoke(null, m, receiver, args);
+    }
+
+    public static Object invoke(Throwable initError, Method m, Object receiver, Object... args) throws IllegalAccessException, InvocationTargetException {
+        try {
+            return m.invoke(receiver, args);
+        } catch (IllegalAccessException e) {
+            handleReflectionDebug(e, initError);
+            throw e;
+        } catch (RuntimeException e) {
+            handleReflectionDebug(e, initError);
+            throw e;
+        } catch (Error e) {
+            handleReflectionDebug(e, initError);
+            throw e;
+        }
+    }
+
+    public static Object invokeSneaky(Method m, Object receiver, Object... args) {
+        return invokeSneaky(null, m, receiver, args);
+    }
+
+    public static Object invokeSneaky(Throwable initError, Method m, Object receiver, Object... args) {
+        try {
+            return m.invoke(receiver, args);
+        } catch (NoClassDefFoundError e) {
+            handleReflectionDebug(e, initError);
+            //ignore, we don't have access to the correct ECJ classes, so lombok can't possibly
+            //do anything useful here.
+            return null;
+        } catch (NullPointerException e) {
+            handleReflectionDebug(e, initError);
+            //ignore, we don't have access to the correct ECJ classes, so lombok can't possibly
+            //do anything useful here.
+            return null;
+        } catch (IllegalAccessException e) {
+            handleReflectionDebug(e, initError);
+            throw sneakyThrow(e);
+        } catch (InvocationTargetException e) {
+            throw sneakyThrow(e.getCause());
+        } catch (RuntimeException e) {
+            handleReflectionDebug(e, initError);
+            throw e;
+        } catch (Error e) {
+            handleReflectionDebug(e, initError);
+            throw e;
+        }
+    }
+
+    public static <T> T newInstance(Constructor<T> c, Object... args) throws IllegalAccessException, InvocationTargetException, InstantiationException {
+        return newInstance(null, c, args);
+    }
+
+    public static <T> T newInstance(Throwable initError, Constructor<T> c, Object... args) throws IllegalAccessException, InvocationTargetException, InstantiationException {
+        try {
+            return c.newInstance(args);
+        } catch (IllegalAccessException e) {
+            handleReflectionDebug(e, initError);
+            throw e;
+        } catch (InstantiationException e) {
+            handleReflectionDebug(e, initError);
+            throw e;
+        } catch (RuntimeException e) {
+            handleReflectionDebug(e, initError);
+            throw e;
+        } catch (Error e) {
+            handleReflectionDebug(e, initError);
+            throw e;
+        }
+    }
+
+    public static <T> T newInstanceSneaky(Constructor<T> c, Object... args) {
+        return newInstanceSneaky(null, c, args);
+    }
+
+    public static <T> T newInstanceSneaky(Throwable initError, Constructor<T> c, Object... args) {
+        try {
+            return c.newInstance(args);
+        } catch (NoClassDefFoundError e) {
+            handleReflectionDebug(e, initError);
+            //ignore, we don't have access to the correct ECJ classes, so lombok can't possibly
+            //do anything useful here.
+            return null;
+        } catch (NullPointerException e) {
+            handleReflectionDebug(e, initError);
+            //ignore, we don't have access to the correct ECJ classes, so lombok can't possibly
+            //do anything useful here.
+            return null;
+        } catch (IllegalAccessException e) {
+            handleReflectionDebug(e, initError);
+            throw sneakyThrow(e);
+        } catch (InstantiationException e) {
+            handleReflectionDebug(e, initError);
+            throw sneakyThrow(e);
+        } catch (InvocationTargetException e) {
+            throw sneakyThrow(e.getCause());
+        } catch (RuntimeException e) {
+            handleReflectionDebug(e, initError);
+            throw e;
+        } catch (Error e) {
+            handleReflectionDebug(e, initError);
+            throw e;
+        }
+    }
+
+    public static Object get(Field f, Object receiver) throws IllegalAccessException {
+        try {
+            return f.get(receiver);
+        } catch (IllegalAccessException e) {
+            handleReflectionDebug(e, null);
+            throw e;
+        } catch (RuntimeException e) {
+            handleReflectionDebug(e, null);
+            throw e;
+        } catch (Error e) {
+            handleReflectionDebug(e, null);
+            throw e;
+        }
+    }
+
+    public static void set(Field f, Object receiver, Object newValue) throws IllegalAccessException {
+        try {
+            f.set(receiver, newValue);
+        } catch (IllegalAccessException e) {
+            handleReflectionDebug(e, null);
+            throw e;
+        } catch (RuntimeException e) {
+            handleReflectionDebug(e, null);
+            throw e;
+        } catch (Error e) {
+            handleReflectionDebug(e, null);
+            throw e;
+        }
+    }
+
+    public static void reportReflectionProblem(Throwable initError, String msg) {
+        if (!isDebugReflection()) return;
+        System.err.println("** LOMBOK REFLECTION issue: " + msg);
+        if (initError != null) {
+            System.err.println("*** ADDITIONALLY, exception occurred setting up reflection: ");
+            initError.printStackTrace(System.err);
+        }
+    }
+
+    public static RuntimeException sneakyThrow(Throwable t) {
+        if (t == null) throw new NullPointerException("t");
+        return Permit.<RuntimeException>sneakyThrow0(t);
+    }
+
+    @SuppressWarnings("unchecked")
+    private static <T extends Throwable> T sneakyThrow0(Throwable t) throws T {
+        throw (T) t;
+    }
+
+    private static Object getJdkCompilerModule() {
+		/* call public api: ModuleLayer.boot().findModule("jdk.compiler").get();
+		   but use reflection because we don't want this code to crash on jdk1.7 and below.
+		   In that case, none of this stuff was needed in the first place, so we just exit via
+		   the catch block and do nothing.
+		 */
+
+        try {
+            Class<?> cModuleLayer = Class.forName("java.lang.ModuleLayer");
+            Method mBoot = cModuleLayer.getDeclaredMethod("boot");
+            Object bootLayer = mBoot.invoke(null);
+            Class<?> cOptional = Class.forName("java.util.Optional");
+            Method mFindModule = cModuleLayer.getDeclaredMethod("findModule", String.class);
+            Object oCompilerO = mFindModule.invoke(bootLayer, "jdk.compiler");
+            return cOptional.getDeclaredMethod("get").invoke(oCompilerO);
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
+    private static Object getOwnModule() {
+        try {
+            Method m = Permit.getMethod(Class.class, "getModule");
+            return m.invoke(Permit.class);
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
+    private static long getFirstFieldOffset(Unsafe unsafe) {
+        try {
+            return unsafe.objectFieldOffset(Parent.class.getDeclaredField("first"));
+        } catch (NoSuchFieldException e) {
+            // can't happen.
+            throw new RuntimeException(e);
+        } catch (SecurityException e) {
+            // can't happen
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static void addOpens() {
+        Class<?> cModule;
+        try {
+            cModule = Class.forName("java.lang.Module");
+        } catch (ClassNotFoundException e) {
+            return; //jdk8-; this is not needed.
+        }
+
+        Unsafe unsafe = UNSAFE;
+
+        Object jdkCompilerModule = getJdkCompilerModule();
+        Object ownModule = getOwnModule();
+        String[] allPkgs = {
+            "com.sun.tools.javac.code",
+            "com.sun.tools.javac.comp",
+            "com.sun.tools.javac.file",
+            "com.sun.tools.javac.main",
+            "com.sun.tools.javac.model",
+            "com.sun.tools.javac.parser",
+            "com.sun.tools.javac.processing",
+            "com.sun.tools.javac.tree",
+            "com.sun.tools.javac.util",
+            "com.sun.tools.javac.jvm",
+            "com.sun.tools.javac.api"
+        };
+
+        try {
+            Method m = cModule.getDeclaredMethod("implAddOpens", String.class, cModule);
+            long firstFieldOffset = getFirstFieldOffset(unsafe);
+            unsafe.putBooleanVolatile(m, firstFieldOffset, true);
+            for (String p : allPkgs) m.invoke(jdkCompilerModule, p, ownModule);
+        } catch (Exception ignore) {}
+
+        try {
+            Method m = cModule.getDeclaredMethod("implAddExports", String.class, cModule);
+            long firstFieldOffset = getFirstFieldOffset(unsafe);
+            unsafe.putBooleanVolatile(m, firstFieldOffset, true);
+            for (String p : allPkgs) m.invoke(jdkCompilerModule, p, ownModule);
+        } catch (Exception ignore) {}
+    }
+}

dubbo-annotation-processor/src/main/java/org/apache/dubbo/annotation/permit/dummy/Child.java

@@ -0,0 +1,33 @@
+/*
+ * Authored by Project Lombok and licensed by MIT License, which is attached below:
+ *
+ * Copyright (C) 2018-2021 The Project Lombok Authors.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package org.apache.dubbo.annotation.permit.dummy;
+
+@SuppressWarnings("all")
+public abstract class Child extends Parent {
+    private transient volatile boolean foo;
+    private transient volatile Object[] bar;
+    private transient volatile Object baz;
+
+}

dubbo-annotation-processor/src/main/java/org/apache/dubbo/annotation/permit/dummy/GrandChild.java

@@ -0,0 +1,43 @@
+/*
+ * Authored by Project Lombok and licensed by MIT License, which is attached below:
+ *
+ * Copyright (C) 2018-2021 The Project Lombok Authors.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package org.apache.dubbo.annotation.permit.dummy;
+
+@SuppressWarnings("all")
+public final class GrandChild extends Child {
+    private Class<?> a;
+    private int b;
+    private String c;
+    private Class<?> d;
+    private Class<?>[] e;
+    private Class<?>[] f;
+    private int g;
+    private transient String h;
+    private transient Object i;
+    private byte[] j;
+    private byte[] k;
+    private byte[] l;
+    private volatile Object m;
+    private Object n;
+}

dubbo-annotation-processor/src/main/java/org/apache/dubbo/annotation/permit/dummy/Parent.java

@@ -0,0 +1,36 @@
+/*
+ * Authored by Project Lombok and licensed by MIT License, which is attached below:
+ *
+ * Copyright (C) 2018-2021 The Project Lombok Authors.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package org.apache.dubbo.annotation.permit.dummy;
+
+import java.io.OutputStream;
+
+@SuppressWarnings("all")
+public class Parent {
+    boolean first;
+    static final Object staticObj = OutputStream.class;
+    volatile Object second;
+    private static volatile boolean staticSecond;
+    private static volatile boolean staticThird;
+}

dubbo-annotation-processor/src/main/java/org/apache/dubbo/annotation/permit/dummy/package-info.java

@@ -0,0 +1,32 @@
+/*
+ * Authored by Project Lombok and licensed by MIT License, which is attached below:
+ *
+ * Copyright (C) 2018-2021 The Project Lombok Authors.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * This package recreates the type hierarchy of {@code java.lang.reflect.AccessibleObject} and friends (such as {@code java.lang.reflect.Method});
+ * its purpose is to allow us to ask {@code sun.misc.internal.Unsafe} about the exact offset of the {@code override} field of {@code AccessibleObject};
+ * asking about that field directly doesn't work after jdk14, presumably because the fields of AO are expressly hidden somehow.
+ * <p>
+ * NB: It's usually 12, on the vast majority of OS, VM, and architecture combos.
+ */
+package org.apache.dubbo.annotation.permit.dummy;

dubbo-annotation-processor/src/main/java/org/apache/dubbo/annotation/permit/package-info.java

@@ -0,0 +1,32 @@
+/*
+ * Authored by Project Lombok and licensed by MIT License, which is attached below:
+ *
+ * Copyright (C) 2018-2021 The Project Lombok Authors.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+/**
+ * This is a reduced copy of the nqzero Permit-reflect project.
+ * https://github.com/nqzero/permit-reflect
+ * <p>
+ * Many thanks to nqzero. The permit-reflect project is, like lombok itself, licensed under the MIT license.
+ * See https://github.com/nqzero/permit-reflect/blob/master/License for license info.
+ */
+package org.apache.dubbo.annotation.permit;

dubbo-annotation-processor/src/main/java/org/apache/dubbo/annotation/util/ASTUtils.java

@@ -0,0 +1,111 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.dubbo.annotation.util;
+
+import org.apache.dubbo.annotation.AnnotationProcessorContext;
+
+import com.sun.source.util.TreePath;
+import com.sun.tools.javac.code.Symbol;
+import com.sun.tools.javac.tree.JCTree;
+import com.sun.tools.javac.util.ListBuffer;
+
+import java.util.List;
+
+/**
+ * Some utils about AST manipulating.
+ */
+public final class ASTUtils {
+
+    private ASTUtils() {
+        throw new UnsupportedOperationException("No instance of 'ASTUtils' for you! ");
+    }
+
+    public static void addImportStatement(AnnotationProcessorContext apContext,
+                                    Symbol.ClassSymbol classSymbol,
+                                    String packageName,
+                                    String className) {
+
+        JCTree.JCImport jcImport = apContext.getTreeMaker().Import(
+            apContext.getTreeMaker().Select(
+                apContext.getTreeMaker().Ident(apContext.getNames().fromString(packageName)),
+                apContext.getNames().fromString(className)
+            ), false);
+
+        TreePath treePath = apContext.getTrees().getPath(classSymbol);
+        TreePath parentPath = treePath.getParentPath();
+        JCTree.JCCompilationUnit compilationUnit = (JCTree.JCCompilationUnit) parentPath.getCompilationUnit();
+
+        List<JCTree.JCImport> imports = compilationUnit.getImports();
+        if (imports.stream().noneMatch(x -> x.qualid.toString().contains(packageName + "." + className))) {
+
+            compilationUnit.accept(new JCTree.Visitor() {
+                @Override
+                public void visitTopLevel(JCTree.JCCompilationUnit that) {
+
+                    List<JCTree> defs = compilationUnit.defs;
+
+                    ListBuffer<JCTree> newDefs = new ListBuffer<>();
+
+                    newDefs.add(defs.get(0));
+                    newDefs.add(jcImport);
+                    newDefs.addAll(defs.subList(1, defs.size()));
+
+                    compilationUnit.defs = newDefs.toList();
+                }
+            });
+        }
+    }
+
+    /**
+     * Insert statement to head of the method.
+     *
+     * @param block the method body
+     * @param originalMethodDecl the method declaration that will add logger statement
+     * @param fullExpressionStatement the statement to insert.
+     */
+    public static void insertStatementToHeadOfMethod(JCTree.JCBlock block,
+                                                     JCTree.JCMethodDecl originalMethodDecl,
+                                                     JCTree.JCStatement fullExpressionStatement) {
+
+        boolean isConstructor = originalMethodDecl.name.toString().equals("<init>");
+        ListBuffer<JCTree.JCStatement> statements = new ListBuffer<>();
+
+        // In constructor, super(...) or this(...) should be the first statement.
+
+        if (isConstructor && !block.stats.isEmpty()) {
+
+            boolean startsWithSuper = block.stats.get(0).toString().startsWith("super(");
+            boolean startsWithThis = block.stats.get(0).toString().startsWith("this(");
+
+            if (startsWithSuper || startsWithThis) {
+                statements.add(block.stats.get(0));
+                statements.add(fullExpressionStatement);
+                statements.addAll(block.stats.subList(1, block.stats.size()));
+            } else {
+                statements.add(fullExpressionStatement);
+                statements.addAll(block.stats);
+            }
+
+        } else {
+            statements.add(fullExpressionStatement);
+            statements.addAll(block.stats);
+        }
+
+        block.stats = statements.toList();
+    }
+}

dubbo-annotation-processor/src/main/java/org/apache/dubbo/annotation/util/FileUtils.java

@@ -0,0 +1,155 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.dubbo.annotation.util;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.channels.Channels;
+import java.nio.channels.FileChannel;
+import java.nio.channels.ReadableByteChannel;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+import java.util.Scanner;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+/**
+ * Utilities of iterating file.
+ */
+public final class FileUtils {
+
+    private static final Pattern WINDOWS_PATH_PATTERN = Pattern.compile("file:/\\w:/.*");
+
+
+    private FileUtils() {
+        throw new UnsupportedOperationException("No instance of FileUtils for you! ");
+    }
+
+    public static List<Path> getAllClassFilePaths(String rootPath) {
+        List<Path> targetFolders;
+
+        try (Stream<Path> filesStream = Files.walk(Paths.get(rootPath))) {
+            targetFolders = filesStream.filter(x -> !x.toFile().isFile())
+                .filter(x -> x.toString().contains("classes") && !x.toString().contains("test-classes"))
+                .filter(x -> x.toString().contains("\\org\\apache\\dubbo".replace('\\', File.separatorChar)))
+                .collect(Collectors.toList());
+
+            return targetFolders;
+
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static byte[] openFileAsByteArray(String filePath) {
+        try (FileChannel fileChannel = FileChannel.open(Paths.get(filePath))) {
+
+            ByteBuffer byteBuffer = ByteBuffer.allocate((int) fileChannel.size());
+            fileChannel.read(byteBuffer);
+
+            return byteBuffer.array();
+
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public static String openFileAsString(String filePath) {
+        return new String(openFileAsByteArray(filePath));
+    }
+
+    public static String getSourceFilePathFromClassFilePath(String classFilePath) {
+
+        String classesPathString = "\\target\\classes\\".replace("\\", File.separator);
+        String sourcesPathString = "\\src\\main\\java\\".replace("\\", File.separator);
+
+        String sourceFilePathByReplace = classFilePath.replace(classesPathString, sourcesPathString)
+            .replace(".class", ".java");
+
+        // Inner classes.
+        if (sourceFilePathByReplace.lastIndexOf('$') != -1) {
+            int dollarCharIndex = sourceFilePathByReplace.lastIndexOf('$');
+            String outerClassPath = sourceFilePathByReplace.substring(0, dollarCharIndex);
+
+            return outerClassPath + ".java";
+        }
+
+        return sourceFilePathByReplace;
+    }
+
+    public static List<String> loadConfigurationFileInResources(String path) {
+
+        ReadableByteChannel resourceReadableByteChannel = Channels.newChannel(
+                Objects.requireNonNull(FileUtils.class.getClassLoader().getResourceAsStream(path)));
+
+        List<String> lines = new ArrayList<>();
+
+        try (Scanner scanner = new Scanner(resourceReadableByteChannel)) {
+
+            while (scanner.hasNextLine()) {
+                String line = scanner.nextLine().trim();
+
+                if (!line.startsWith("#") && !line.isEmpty()) {
+                    lines.add(line);
+                }
+            }
+
+            return lines;
+        }
+    }
+
+    /**
+     * <p>Get absolute path of resource.
+     *
+     * <p>Retained for testing. It won't work in JAR.
+     *
+     * @param path relative path of resources folder.
+     * @return absolute path of resource
+     */
+    public static String getResourceFilePath(String path) {
+        String resourceFilePath = FileUtils.class.getClassLoader().getResource(path).toString();
+
+        if (WINDOWS_PATH_PATTERN.matcher(resourceFilePath).matches()) {
+            resourceFilePath = resourceFilePath.replace("file:/", "");
+        } else {
+            resourceFilePath = resourceFilePath.replace("file:", "");
+        }
+
+        return resourceFilePath;
+    }
+
+    public static List<Path> getAllFilesInDirectory(Path targetFolder) {
+
+        try (Stream<Path> classFilesStream = Files.walk(targetFolder)) {
+
+            return classFilesStream
+                    .filter(x -> x.toFile().isFile())
+                    .collect(Collectors.toList());
+
+        } catch (IOException e) {
+            return Collections.emptyList();
+        }
+    }
+}

dubbo-annotation-processor/src/main/resources/META-INF/services/javax.annotation.processing.Processor

@@ -0,0 +1 @@
+org.apache.dubbo.annotation.DispatchingAnnotationProcessor

dubbo-annotation-processor/src/main/resources/handlers.cfg

@@ -0,0 +1,17 @@
+#
+#    Licensed to the Apache Software Foundation (ASF) under one or more
+#    contributor license agreements.  See the NOTICE file distributed with
+#    this work for additional information regarding copyright ownership.
+#    The ASF licenses this file to You under the Apache License, Version 2.0
+#    (the "License"); you may not use this file except in compliance with
+#    the License.  You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS,
+#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#    See the License for the specific language governing permissions and
+#    limitations under the License.
+
+org.apache.dubbo.annotation.handler.DeprecatedHandler

dubbo-annotation-processor/src/test/java/org/apache/dubbo/annotation/RealInvocationTest.java

@@ -0,0 +1,64 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.dubbo.annotation;
+
+import org.apache.dubbo.annotation.util.FileUtils;
+import org.apache.dubbo.eci.extractor.JavassistUtils;
+
+import javassist.bytecode.ClassFile;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Real invocation test of DispatchingAnnotationProcessor (and DeprecatedHandler).
+ */
+class RealInvocationTest {
+
+    /**
+     * [File name, Should the counter exist in the class file? ]
+     */
+    private static final Map<String, Boolean> FILES = new HashMap<>(5, 1);
+
+    static {
+        FILES.put("TestConstructorMethod.java", true);
+        FILES.put("TestDeprecatedMethod.java", true);
+        FILES.put("TestInterfaceDeprecatedMethod.java", false);
+        FILES.put("TestConstructorMethodParentClass.java", false);
+        FILES.put("TestConstructorMethodSubClass.java", true);
+    }
+
+    @Test
+    void test() {
+
+        for (Map.Entry<String, Boolean> i : FILES.entrySet()) {
+            String filePath = FileUtils.getResourceFilePath("org/testing/dm/" + i.getKey());
+
+            Assertions.assertTrue(TestingCommons.compileTheSource(filePath), "Compile failed! ");
+
+            String classFilePath = filePath.replace(".java", ".class");
+            ClassFile classFile = JavassistUtils.openClassFile(classFilePath);
+            List<String> stringItems = JavassistUtils.getConstPoolStringItems(classFile.getConstPool());
+
+            Assertions.assertEquals(i.getValue(), stringItems.contains("org/apache/dubbo/common/DeprecatedMethodInvocationCounter"));
+        }
+    }
+}

dubbo-annotation-processor/src/test/java/org/apache/dubbo/annotation/TestingCommons.java

@@ -0,0 +1,71 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.dubbo.annotation;
+
+import javax.tools.JavaCompiler;
+import javax.tools.JavaFileObject;
+import javax.tools.StandardJavaFileManager;
+import javax.tools.ToolProvider;
+import java.nio.charset.StandardCharsets;
+import java.util.Collections;
+import java.util.Locale;
+
+import static java.util.Arrays.asList;
+
+/**
+ * Common code of annotation processor testing.
+ */
+public final class TestingCommons {
+    private TestingCommons() {
+        throw new UnsupportedOperationException("No instance of TestingCommons for you! ");
+    }
+
+    private static class ObjectHolders {
+        static final JavaCompiler javaCompiler = ToolProvider.getSystemJavaCompiler();
+
+        static final StandardJavaFileManager javaFileManager = javaCompiler.getStandardFileManager(
+            null,
+            Locale.ROOT,
+            StandardCharsets.UTF_8
+        );
+    }
+
+    public static boolean compileTheSource(String filePath) {
+
+
+        JavaCompiler.CompilationTask compilationTask = ObjectHolders.javaCompiler.getTask(
+            null,
+            ObjectHolders.javaFileManager,
+            null,
+            asList("-parameters", "-Xlint:unchecked", "-nowarn", "-Xlint:deprecation"),
+            null,
+            getSourceFileJavaFileObject(filePath)
+        );
+
+        compilationTask.setProcessors(
+            Collections.singletonList(new DispatchingAnnotationProcessor())
+        );
+
+        return compilationTask.call();
+    }
+
+    private static Iterable<? extends JavaFileObject> getSourceFileJavaFileObject(String filePath) {
+
+        return ObjectHolders.javaFileManager.getJavaFileObjects(filePath);
+    }
+}

dubbo-annotation-processor/src/test/java/org/apache/dubbo/common/DeprecatedMethodInvocationCounter.java

@@ -14,24 +14,23 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.config.spring.context.annotation.provider;
 
-import org.apache.dubbo.config.annotation.DubboService;
-import org.apache.dubbo.config.spring.api.HelloService;
-
-import org.springframework.stereotype.Service;
+package org.apache.dubbo.common;
 
 /**
- * Default {@link HelloService} annotation with Spring's {@link Service}
- * and Dubbo's {@link org.apache.dubbo.config.annotation.Service}
- *
+ * Reduced mock of Deprecated method invocation counter.
  */
-@Service
-@DubboService
-public class DefaultHelloService implements HelloService {
+public final class DeprecatedMethodInvocationCounter {
+    private DeprecatedMethodInvocationCounter() {
+        throw new UnsupportedOperationException("No instance of DeprecatedMethodInvocationCounter for you! ");
+    }
 
-    @Override
-    public String sayHello(String name) {
-        return "Greeting, " + name;
+    /**
+     * Invoked by (modified) deprecated method.
+     *
+     * @param methodDefinition filled by annotation processor. (like 'org.apache.dubbo.common.URL.getServiceName()')
+     */
+    public static void onDeprecatedMethodCalled(String methodDefinition) {
+        // Intended to be empty.
     }
 }

dubbo-annotation-processor/src/test/java/org/apache/dubbo/eci/extractor/JavassistUtils.java

@@ -0,0 +1,151 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.dubbo.eci.extractor;
+
+import org.apache.dubbo.annotation.util.FileUtils;
+
+import javassist.bytecode.ClassFile;
+import javassist.bytecode.ConstPool;
+
+import java.io.ByteArrayInputStream;
+import java.io.DataInputStream;
+import java.io.IOException;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Utilities of Javassist.
+ */
+public class JavassistUtils {
+    private static final Map<Class, Field> stringFieldCache = new HashMap<>(2, 1);
+
+    private static Method getItemMethodCache = null;
+
+    private JavassistUtils() {
+        throw new UnsupportedOperationException("No instance of JavassistUtils for you! ");
+    }
+
+    public static ClassFile openClassFile(String classFilePath) {
+        try {
+            byte[] clsB = FileUtils.openFileAsByteArray(classFilePath);
+            return new ClassFile(new DataInputStream(new ByteArrayInputStream(clsB)));
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    static List<Object> getConstPoolItems(ConstPool cp) {
+        List<Object> objects = new ArrayList<>(cp.getSize());
+
+        for (int i = 0; i < cp.getSize(); i++) {
+            objects.add(getConstPoolItem(cp, i));
+        }
+
+        return objects;
+    }
+
+    /**
+     * Calls ConstPool.getItem() method reflectively.
+     *
+     * @param cp The ConstPool object.
+     * @param index The index of items.
+     * @return The XXXInfo Object. Since it's invisible, return Object instead.
+     */
+    static Object getConstPoolItem(ConstPool cp, int index) {
+
+        if (getItemMethodCache == null) {
+            Class<ConstPool> cpc = ConstPool.class;
+            Method getItemMethod;
+            try {
+                getItemMethod = cpc.getDeclaredMethod("getItem", int.class);
+                getItemMethod.setAccessible(true);
+
+                getItemMethodCache = getItemMethod;
+
+            } catch (NoSuchMethodException e) {
+                throw new RuntimeException("Javassist internal method changed.", e);
+            }
+        }
+
+        try {
+            return getItemMethodCache.invoke(cp, index);
+        } catch (IllegalAccessException | InvocationTargetException e) {
+            throw new RuntimeException("Javassist internal method changed.", e);
+        }
+    }
+
+    public static List<String> getConstPoolStringItems(ConstPool cp) {
+        List<Object> objects = getConstPoolItems(cp);
+        List<String> stringItems = new ArrayList<>(cp.getSize());
+
+        for (Object item : objects) {
+
+            Field stringField;
+
+            if (item != null) {
+                stringField = getStringFieldInConstPoolItems(item);
+
+                if (stringField == null) {
+                    continue;
+                }
+
+                Object fieldData;
+
+                try {
+                    fieldData = stringField.get(item);
+                } catch (IllegalAccessException e) {
+                    throw new RuntimeException("Javassist internal field changed.", e);
+                }
+
+                if (fieldData.getClass() == String.class) {
+                    stringItems.add((String) fieldData);
+                }
+            }
+        }
+
+        return stringItems;
+    }
+
+    /**
+     * Obtain the 'string' field in Utf8Info and StringInfo.
+     *
+     * @param item The instance of Utf8Info and StringInfo.
+     * @return 'string' field's value
+     */
+    static Field getStringFieldInConstPoolItems(Object item) {
+        if (stringFieldCache.containsKey(item.getClass())) {
+            return stringFieldCache.get(item.getClass());
+        } else {
+            try {
+                Field stringField = item.getClass().getDeclaredField("string");
+                stringField.setAccessible(true);
+                stringFieldCache.put(item.getClass(), stringField);
+
+                return stringField;
+            } catch (NoSuchFieldException ignored) {
+            }
+        }
+
+        return null;
+    }
+}

dubbo-annotation-processor/src/test/java/org/apache/dubbo/eci/util/ReflectUtils.java

@@ -0,0 +1,51 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.dubbo.eci.util;
+
+import java.lang.reflect.Field;
+
+/**
+ * Tools of reflective operations.
+ */
+public final class ReflectUtils {
+    private ReflectUtils() {
+        throw new UnsupportedOperationException("No instance of ReflectUtils for you! ");
+    }
+
+    /**
+     * Searches (a private) field in super classes recursively.
+     *
+     * @param cls the actual type
+     * @param name the field name
+     * @return the corresponding Field object, or null if the field does not exist.
+     */
+    public static Field getDeclaredFieldRecursively(Class cls, String name) {
+        try {
+            Field indexField = cls.getDeclaredField(name);
+            indexField.setAccessible(true);
+
+            return indexField;
+        } catch (NoSuchFieldException e) {
+            if (cls == Object.class) {
+                return null;
+            }
+
+            return getDeclaredFieldRecursively(cls.getSuperclass(), name);
+        }
+    }
+}

dubbo-annotation-processor/src/test/resources/org/testing/dm/TestConstructorMethod.java

@@ -0,0 +1,28 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.testing.dm;
+
+public class TestConstructorMethod {
+    @Deprecated
+    TestConstructorMethod() {
+        this("1");
+    }
+
+    TestConstructorMethod(String s) {
+    }
+}

dubbo-annotation-processor/src/test/resources/org/testing/dm/TestConstructorMethodParentClass.java

@@ -0,0 +1,27 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.testing.dm;
+
+public class TestConstructorMethodParentClass {
+
+    public TestConstructorMethodParentClass() {
+    }
+
+    public TestConstructorMethodParentClass(String s) {
+    }
+}

dubbo-annotation-processor/src/test/resources/org/testing/dm/TestConstructorMethodSubClass.java

@@ -14,22 +14,17 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.metadata.tools;
 
-import java.io.Serializable;
+package org.testing.dm;
 
-/**
- * Ancestor
- */
-public class Ancestor implements Serializable {
+public class TestConstructorMethodSubClass extends TestConstructorMethodParentClass {
 
-    private boolean z;
-
-    public boolean isZ() {
-        return z;
+    @Deprecated
+    public TestConstructorMethodSubClass(int i) {
+        super();
     }
 
-    public void setZ(boolean z) {
-        this.z = z;
+    public TestConstructorMethodSubClass(String s) {
+        super(s);
     }
 }

dubbo-annotation-processor/src/test/resources/org/testing/dm/TestDeprecatedMethod.java

@@ -0,0 +1,26 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.testing.dm;
+
+public class TestDeprecatedMethod {
+
+    @Deprecated
+    public void m1() {
+        System.out.println("M1! ");
+    }
+}

dubbo-annotation-processor/src/test/resources/org/testing/dm/TestInterfaceDeprecatedMethod.java

@@ -14,8 +14,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.config.spring.api;
 
-public interface HelloService {
-    String sayHello(String name);
+package org.testing.dm;
+
+public interface TestInterfaceDeprecatedMethod {
+
+    @Deprecated
+    public void m1();
 }

dubbo-build-tools/pom.xml

@@ -13,77 +13,18 @@
   See the License for the specific language governing permissions and
   limitations under the License.
   -->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
+<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xmlns="http://maven.apache.org/POM/4.0.0"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
 
-  <groupId>org.apache.dubbo</groupId>
-  <artifactId>dubbo-build-tools</artifactId>
-  <version>1.0.0</version>
-  <packaging>jar</packaging>
+    <groupId>org.apache.dubbo</groupId>
+    <artifactId>dubbo-build-tools</artifactId>
+    <version>1.0.0</version>
+    <packaging>jar</packaging>
 
-  <properties>
-    <maven.deploy.skip>true</maven.deploy.skip>
-    <spotless-maven-plugin.version>2.43.0</spotless-maven-plugin.version>
-    <spotless.action>check</spotless.action>
-    <dubbo-shared-resources.version>1.0.0</dubbo-shared-resources.version>
-    <palantirJavaFormat.version>2.38.0</palantirJavaFormat.version>
-  </properties>
-
-  <profiles>
-    <profile>
-      <id>java11+</id>
-      <activation>
-        <jdk>[11,)</jdk>
-      </activation>
-      <build>
-        <!--- newer versions of plugins requires JDK 11 -->
-        <plugins>
-          <plugin>
-            <groupId>com.diffplug.spotless</groupId>
-            <artifactId>spotless-maven-plugin</artifactId>
-            <version>${spotless-maven-plugin.version}</version>
-            <configuration>
-              <java>
-                <palantirJavaFormat>
-                  <version>${palantirJavaFormat.version}</version>
-                </palantirJavaFormat>
-                <removeUnusedImports />
-                <importOrder>
-                  <file>dubbo-importorder.txt</file>
-                </importOrder>
-                <licenseHeader>
-                  <file>checkstyle-header.txt</file>
-                </licenseHeader>
-              </java>
-              <pom>
-                <sortPom>
-                  <expandEmptyElements>false</expandEmptyElements>
-                  <spaceBeforeCloseEmptyElement>true</spaceBeforeCloseEmptyElement>
-                </sortPom>
-              </pom>
-              <upToDateChecking>
-                <enabled>true</enabled>
-              </upToDateChecking>
-            </configuration>
-            <dependencies>
-              <dependency>
-                <groupId>com.alibaba</groupId>
-                <artifactId>dubbo-shared-resources</artifactId>
-                <version>${dubbo-shared-resources.version}</version>
-              </dependency>
-            </dependencies>
-            <executions>
-              <execution>
-                <goals>
-                  <goal>${spotless.action}</goal>
-                </goals>
-                <phase>process-sources</phase>
-              </execution>
-            </executions>
-          </plugin>
-        </plugins>
-      </build>
-    </profile>
-  </profiles>
+    <properties>
+        <maven.deploy.skip>true</maven.deploy.skip>
+    </properties>
 
 </project>

dubbo-cluster/pom.xml

@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <!--
   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
@@ -15,104 +14,77 @@
   See the License for the specific language governing permissions and
   limitations under the License.
   -->
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
-  <modelVersion>4.0.0</modelVersion>
-  <parent>
-    <groupId>org.apache.dubbo</groupId>
-    <artifactId>dubbo-parent</artifactId>
-    <version>${revision}</version>
-    <relativePath>../pom.xml</relativePath>
-  </parent>
-  <artifactId>dubbo-cluster</artifactId>
-  <packaging>jar</packaging>
-  <name>${project.artifactId}</name>
-  <description>The cluster module of dubbo project</description>
-  <properties>
-    <skip_maven_deploy>false</skip_maven_deploy>
-    <nashorn-core.version>15.4</nashorn-core.version>
-  </properties>
-  <dependencies>
-    <dependency>
-      <groupId>org.apache.dubbo</groupId>
-      <artifactId>dubbo-rpc-api</artifactId>
-      <version>${project.parent.version}</version>
-    </dependency>
-    <dependency>
-      <groupId>org.yaml</groupId>
-      <artifactId>snakeyaml</artifactId>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.dubbo</groupId>
-      <artifactId>dubbo-rpc-injvm</artifactId>
-      <version>${project.parent.version}</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.curator</groupId>
-      <artifactId>curator-framework</artifactId>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.zookeeper</groupId>
-      <artifactId>zookeeper</artifactId>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.dubbo</groupId>
-      <artifactId>dubbo-serialization-hessian2</artifactId>
-      <version>${project.parent.version}</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.dubbo</groupId>
-      <artifactId>dubbo-serialization-fastjson2</artifactId>
-      <version>${project.parent.version}</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.dubbo</groupId>
-      <artifactId>dubbo-test-check</artifactId>
-      <version>${project.parent.version}</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.dubbo</groupId>
-      <artifactId>dubbo-metrics-registry</artifactId>
-      <version>${project.parent.version}</version>
-      <scope>compile</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.dubbo</groupId>
-      <artifactId>dubbo-metrics-default</artifactId>
-      <version>${project.parent.version}</version>
-      <optional>true</optional>
-    </dependency>
-    <dependency>
-      <groupId>io.micrometer</groupId>
-      <artifactId>micrometer-tracing-integration-test</artifactId>
-      <scope>test</scope>
-    </dependency>
-  </dependencies>
-
-  <profiles>
-    <!--
-            https://github.com/openjdk/nashorn
-            Nashorn used to be part of the JDK until Java 14.
-            This project provides a standalone version of Nashorn suitable for use with Java 11 and later.
-        -->
-    <profile>
-      <id>nashorn-jdk11</id>
-      <activation>
-        <jdk>[11,)</jdk>
-      </activation>
-      <dependencies>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.apache.dubbo</groupId>
+        <artifactId>dubbo-parent</artifactId>
+        <version>${revision}</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+    <artifactId>dubbo-cluster</artifactId>
+    <packaging>jar</packaging>
+    <name>${project.artifactId}</name>
+    <description>The cluster module of dubbo project</description>
+    <properties>
+        <skip_maven_deploy>false</skip_maven_deploy>
+    </properties>
+    <dependencies>
         <dependency>
-          <groupId>org.openjdk.nashorn</groupId>
-          <artifactId>nashorn-core</artifactId>
-          <version>${nashorn-core.version}</version>
-          <scope>test</scope>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-rpc-api</artifactId>
+            <version>${project.parent.version}</version>
         </dependency>
-      </dependencies>
-    </profile>
-  </profiles>
+        <dependency>
+            <groupId>org.yaml</groupId>
+            <artifactId>snakeyaml</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-rpc-injvm</artifactId>
+            <version>${project.parent.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.curator</groupId>
+            <artifactId>curator-framework</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.zookeeper</groupId>
+            <artifactId>zookeeper</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-serialization-hessian2</artifactId>
+            <version>${project.parent.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-serialization-fastjson2</artifactId>
+            <version>${project.parent.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-test-check</artifactId>
+            <version>${project.parent.version}</version>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-metrics-registry</artifactId>
+            <version>${project.parent.version}</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dubbo</groupId>
+            <artifactId>dubbo-metrics-default</artifactId>
+            <version>${project.parent.version}</version>
+            <optional>true</optional>
+        </dependency>
+    </dependencies>
 </project>

dubbo-cluster/src/main/java/org/apache/dubbo/config/validator/InterfaceConfigValidator.java

@@ -0,0 +1,68 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.dubbo.config.validator;
+
+import org.apache.dubbo.common.extension.Activate;
+import org.apache.dubbo.common.utils.CollectionUtils;
+import org.apache.dubbo.config.AbstractInterfaceConfig;
+import org.apache.dubbo.config.MethodConfig;
+import org.apache.dubbo.config.context.ConfigValidator;
+import org.apache.dubbo.config.utils.ConfigValidationUtils;
+import org.apache.dubbo.rpc.Filter;
+import org.apache.dubbo.rpc.ProxyFactory;
+import org.apache.dubbo.rpc.cluster.Cluster;
+import org.apache.dubbo.rpc.cluster.filter.ClusterFilter;
+
+import java.util.Arrays;
+import java.util.List;
+
+import static org.apache.dubbo.common.constants.CommonConstants.CLUSTER_KEY;
+import static org.apache.dubbo.common.constants.CommonConstants.FILTER_KEY;
+import static org.apache.dubbo.config.Constants.LAYER_KEY;
+import static org.apache.dubbo.rpc.Constants.LOCAL_KEY;
+import static org.apache.dubbo.rpc.Constants.PROXY_KEY;
+
+@Activate
+public class InterfaceConfigValidator implements ConfigValidator<AbstractInterfaceConfig> {
+
+    public static void validateAbstractInterfaceConfig(AbstractInterfaceConfig config) {
+        ConfigValidationUtils.checkName(LOCAL_KEY, config.getLocal());
+        ConfigValidationUtils.checkName("stub", config.getStub());
+        ConfigValidationUtils.checkMultiName("owner", config.getOwner());
+
+        ConfigValidationUtils.checkExtension(config.getScopeModel(), ProxyFactory.class, PROXY_KEY, config.getProxy());
+        ConfigValidationUtils.checkExtension(config.getScopeModel(), Cluster.class, CLUSTER_KEY, config.getCluster());
+        ConfigValidationUtils.checkMultiExtension(config.getScopeModel(), Arrays.asList(Filter.class, ClusterFilter.class), FILTER_KEY, config.getFilter());
+        ConfigValidationUtils.checkNameHasSymbol(LAYER_KEY, config.getLayer());
+
+        List<MethodConfig> methods = config.getMethods();
+        if (CollectionUtils.isNotEmpty(methods)) {
+            methods.forEach(MethodConfig::validate);
+        }
+    }
+
+    @Override
+    public boolean validate(AbstractInterfaceConfig config) {
+        validateAbstractInterfaceConfig(config);
+        return true;
+    }
+
+    @Override
+    public boolean isSupport(Class<?> configClass) {
+        return AbstractInterfaceConfig.class.isAssignableFrom(configClass);
+    }
+}

dubbo-cluster/src/main/java/org/apache/dubbo/config/validator/MethodConfigValidator.java

@@ -0,0 +1,63 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.dubbo.config.validator;
+
+import org.apache.dubbo.common.extension.Activate;
+import org.apache.dubbo.config.MethodConfig;
+import org.apache.dubbo.config.context.ConfigValidator;
+import org.apache.dubbo.config.utils.ConfigValidationUtils;
+import org.apache.dubbo.rpc.cluster.LoadBalance;
+
+import static org.apache.dubbo.common.constants.CommonConstants.LOADBALANCE_KEY;
+import static org.apache.dubbo.common.utils.StringUtils.isNotEmpty;
+import static org.apache.dubbo.rpc.Constants.FAIL_PREFIX;
+import static org.apache.dubbo.rpc.Constants.FORCE_PREFIX;
+import static org.apache.dubbo.rpc.Constants.MOCK_KEY;
+import static org.apache.dubbo.rpc.Constants.RETURN_PREFIX;
+import static org.apache.dubbo.rpc.Constants.THROW_PREFIX;
+
+@Activate
+public class MethodConfigValidator implements ConfigValidator<MethodConfig> {
+
+    public static void validateMethodConfig(MethodConfig config) {
+        ConfigValidationUtils.checkExtension(config.getScopeModel(), LoadBalance.class, LOADBALANCE_KEY, config.getLoadbalance());
+        ConfigValidationUtils.checkParameterName(config.getParameters());
+        ConfigValidationUtils.checkMethodName("name", config.getName());
+
+        String mock = config.getMock();
+        if (isNotEmpty(mock)) {
+            if (mock.startsWith(RETURN_PREFIX) || mock.startsWith(THROW_PREFIX + " ")) {
+                ConfigValidationUtils.checkLength(MOCK_KEY, mock);
+            } else if (mock.startsWith(FAIL_PREFIX) || mock.startsWith(FORCE_PREFIX)) {
+                ConfigValidationUtils.checkNameHasSymbol(MOCK_KEY, mock);
+            } else {
+                ConfigValidationUtils.checkName(MOCK_KEY, mock);
+            }
+        }
+    }
+
+    @Override
+    public boolean validate(MethodConfig config) {
+        validateMethodConfig(config);
+        return true;
+    }
+
+    @Override
+    public boolean isSupport(Class<?> configClass) {
+        return MethodConfig.class.equals(configClass);
+    }
+}

dubbo-cluster/src/main/java/org/apache/dubbo/registry/AddressListener.java

@@ -35,5 +35,8 @@ public interface AddressListener {
      */
     List<URL> notify(List<URL> addresses, URL consumerUrl, Directory registryDirectory);
 
-    default void destroy(URL consumerUrl, Directory registryDirectory) {}
+    default void destroy(URL consumerUrl, Directory registryDirectory) {
+
+    }
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/Cluster.java

@@ -24,6 +24,8 @@ import org.apache.dubbo.rpc.RpcException;
 import org.apache.dubbo.rpc.model.ScopeModel;
 import org.apache.dubbo.rpc.model.ScopeModelUtil;
 
+import static org.apache.dubbo.rpc.cluster.Constants.DEFAULT_CLUSTER;
+
 /**
  * Cluster. (SPI, Singleton, ThreadSafe)
  * <p>
@@ -31,11 +33,9 @@ import org.apache.dubbo.rpc.model.ScopeModelUtil;
  * <a href="http://en.wikipedia.org/wiki/Fault-tolerant_system">Fault-Tolerant</a>
  *
  */
-@SPI(Cluster.DEFAULT)
+@SPI(DEFAULT_CLUSTER)
 public interface Cluster {
 
-    String DEFAULT = "failover";
-
     /**
      * Merge the directory invokers to a virtual invoker.
      *
@@ -53,10 +53,8 @@ public interface Cluster {
 
     static Cluster getCluster(ScopeModel scopeModel, String name, boolean wrap) {
         if (StringUtils.isEmpty(name)) {
-            name = Cluster.DEFAULT;
+            name = DEFAULT_CLUSTER;
         }
-        return ScopeModelUtil.getApplicationModel(scopeModel)
-                .getExtensionLoader(Cluster.class)
-                .getExtension(name, wrap);
+        return ScopeModelUtil.getApplicationModel(scopeModel).getExtensionLoader(Cluster.class).getExtension(name, wrap);
     }
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/ClusterScopeModelInitializer.java

@@ -17,10 +17,9 @@
 package org.apache.dubbo.rpc.cluster;
 
 import org.apache.dubbo.common.beans.factory.ScopeBeanFactory;
-import org.apache.dubbo.rpc.AdaptiveMetrics;
-import org.apache.dubbo.rpc.cluster.merger.MergerFactory;
+import org.apache.dubbo.rpc.cluster.factory.DefaultClusterInvokerFactory;
+import org.apache.dubbo.rpc.cluster.factory.StaticDirectoryStrategy;
 import org.apache.dubbo.rpc.cluster.router.RouterSnapshotSwitcher;
-import org.apache.dubbo.rpc.cluster.router.mesh.route.MeshRuleManager;
 import org.apache.dubbo.rpc.cluster.support.ClusterUtils;
 import org.apache.dubbo.rpc.model.ApplicationModel;
 import org.apache.dubbo.rpc.model.FrameworkModel;
@@ -28,23 +27,22 @@ import org.apache.dubbo.rpc.model.ModuleModel;
 import org.apache.dubbo.rpc.model.ScopeModelInitializer;
 
 public class ClusterScopeModelInitializer implements ScopeModelInitializer {
+
     @Override
     public void initializeFrameworkModel(FrameworkModel frameworkModel) {
         ScopeBeanFactory beanFactory = frameworkModel.getBeanFactory();
         beanFactory.registerBean(RouterSnapshotSwitcher.class);
+        beanFactory.registerBean(StaticDirectoryStrategy.class);
+        beanFactory.registerBean(DefaultClusterInvokerFactory.class);
     }
 
     @Override
     public void initializeApplicationModel(ApplicationModel applicationModel) {
         ScopeBeanFactory beanFactory = applicationModel.getBeanFactory();
-        beanFactory.registerBean(MergerFactory.class);
         beanFactory.registerBean(ClusterUtils.class);
-        beanFactory.registerBean(AdaptiveMetrics.class);
     }
 
     @Override
     public void initializeModuleModel(ModuleModel moduleModel) {
-        ScopeBeanFactory beanFactory = moduleModel.getBeanFactory();
-        beanFactory.registerBean(MeshRuleManager.class);
     }
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/LoadBalance.java

@@ -46,4 +46,5 @@ public interface LoadBalance {
      */
     @Adaptive("loadbalance")
     <T> Invoker<T> select(List<Invoker<T>> invokers, URL url, Invocation invocation) throws RpcException;
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/Merger.java

@@ -22,4 +22,5 @@ import org.apache.dubbo.common.extension.SPI;
 public interface Merger<T> {
 
     T merge(T... items);
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/Router.java

@@ -68,8 +68,8 @@ public interface Router extends Comparable<Router> {
      * @return state with route result
      * @throws RpcException
      */
-    default <T> RouterResult<Invoker<T>> route(
-            List<Invoker<T>> invokers, URL url, Invocation invocation, boolean needToPrintMessage) throws RpcException {
+    default <T> RouterResult<Invoker<T>> route(List<Invoker<T>> invokers, URL url, Invocation invocation,
+                                                     boolean needToPrintMessage) throws RpcException {
         return new RouterResult<>(route(invokers, url, invocation));
     }
 
@@ -80,7 +80,9 @@ public interface Router extends Comparable<Router> {
      * @param invokers invoker list
      * @param <T>      invoker's type
      */
-    default <T> void notify(List<Invoker<T>> invokers) {}
+    default <T> void notify(List<Invoker<T>> invokers) {
+
+    }
 
     /**
      * To decide whether this router need to execute every time an RPC comes or should only execute when addresses or
@@ -107,7 +109,7 @@ public interface Router extends Comparable<Router> {
     int getPriority();
 
     default void stop() {
-        // do nothing by default
+        //do nothing by default
     }
 
     @Override

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/RouterChain.java

@@ -16,6 +16,12 @@
  */
 package org.apache.dubbo.rpc.cluster;
 
+import java.util.List;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.concurrent.locks.ReadWriteLock;
+import java.util.concurrent.locks.ReentrantReadWriteLock;
+import java.util.stream.Collectors;
+
 import org.apache.dubbo.common.URL;
 import org.apache.dubbo.common.config.ConfigurationUtils;
 import org.apache.dubbo.common.constants.LoggerCodeConstants;
@@ -30,12 +36,6 @@ import org.apache.dubbo.rpc.cluster.router.state.StateRouterFactory;
 import org.apache.dubbo.rpc.model.ModuleModel;
 import org.apache.dubbo.rpc.model.ScopeModelUtil;
 
-import java.util.List;
-import java.util.concurrent.atomic.AtomicReference;
-import java.util.concurrent.locks.ReadWriteLock;
-import java.util.concurrent.locks.ReentrantReadWriteLock;
-import java.util.stream.Collectors;
-
 import static org.apache.dubbo.rpc.cluster.Constants.ROUTER_KEY;
 
 /**
@@ -52,30 +52,31 @@ public class RouterChain<T> {
     public static <T> RouterChain<T> buildChain(Class<T> interfaceClass, URL url) {
         SingleRouterChain<T> chain1 = buildSingleChain(interfaceClass, url);
         SingleRouterChain<T> chain2 = buildSingleChain(interfaceClass, url);
-        return new RouterChain<>(new SingleRouterChain[] {chain1, chain2});
+        return new RouterChain<>(new SingleRouterChain[]{chain1, chain2});
     }
 
     public static <T> SingleRouterChain<T> buildSingleChain(Class<T> interfaceClass, URL url) {
         ModuleModel moduleModel = url.getOrDefaultModuleModel();
 
-        List<RouterFactory> extensionFactories =
-                moduleModel.getExtensionLoader(RouterFactory.class).getActivateExtension(url, ROUTER_KEY);
+        List<RouterFactory> extensionFactories = moduleModel.getExtensionLoader(RouterFactory.class)
+            .getActivateExtension(url, ROUTER_KEY);
 
         List<Router> routers = extensionFactories.stream()
-                .map(factory -> factory.getRouter(url))
-                .sorted(Router::compareTo)
-                .collect(Collectors.toList());
+            .map(factory -> factory.getRouter(url))
+            .sorted(Router::compareTo)
+            .collect(Collectors.toList());
 
-        List<StateRouter<T>> stateRouters =
-                moduleModel.getExtensionLoader(StateRouterFactory.class).getActivateExtension(url, ROUTER_KEY).stream()
-                        .map(factory -> factory.getRouter(interfaceClass, url))
-                        .collect(Collectors.toList());
+        List<StateRouter<T>> stateRouters = moduleModel
+            .getExtensionLoader(StateRouterFactory.class)
+            .getActivateExtension(url, ROUTER_KEY)
+            .stream()
+            .map(factory -> factory.getRouter(interfaceClass, url))
+            .collect(Collectors.toList());
 
-        boolean shouldFailFast = Boolean.parseBoolean(
-                ConfigurationUtils.getProperty(moduleModel, Constants.SHOULD_FAIL_FAST_KEY, "true"));
 
-        RouterSnapshotSwitcher routerSnapshotSwitcher =
-                ScopeModelUtil.getFrameworkModel(moduleModel).getBeanFactory().getBean(RouterSnapshotSwitcher.class);
+        boolean shouldFailFast = Boolean.parseBoolean(ConfigurationUtils.getProperty(moduleModel, Constants.SHOULD_FAIL_FAST_KEY, "true"));
+
+        RouterSnapshotSwitcher routerSnapshotSwitcher = ScopeModelUtil.getFrameworkModel(moduleModel).getBeanFactory().getBean(RouterSnapshotSwitcher.class);
 
         return new SingleRouterChain<>(routers, stateRouters, shouldFailFast, routerSnapshotSwitcher);
     }
@@ -105,9 +106,9 @@ public class RouterChain<T> {
         //     If `availableInvokers` is created from origin invokers => use backup chain
         //     If `availableInvokers` is created from newly invokers  => use main chain
         BitList<Invoker<T>> notifying = notifyingInvokers.get();
-        if (notifying != null
-                && currentChain == backupChain
-                && availableInvokers.getOriginList() == notifying.getOriginList()) {
+        if (notifying != null &&
+            currentChain == backupChain &&
+            availableInvokers.getOriginList() == notifying.getOriginList()) {
             return mainChain;
         }
         return currentChain;
@@ -139,8 +140,7 @@ public class RouterChain<T> {
         }
 
         // Refresh main chain.
-        // No one can request to use main chain. `currentChain` is backup chain. `route` method cannot access main
-        // chain.
+        // No one can request to use main chain. `currentChain` is backup chain. `route` method cannot access main chain.
         try {
             // Lock main chain to wait all invocation end
             // To wait until no one is using main chain.
@@ -157,32 +157,26 @@ public class RouterChain<T> {
         }
 
         // Set the reference of newly invokers to temp variable.
-        // Reason: The next step will switch the invokers reference in directory, so we should check the
-        // `availableInvokers`
-        //         argument when `route`. If the current invocation use newly invokers, we should use main chain to
-        // route, and
+        // Reason: The next step will switch the invokers reference in directory, so we should check the `availableInvokers`
+        //         argument when `route`. If the current invocation use newly invokers, we should use main chain to route, and
         //         this can prevent use newly invokers to route backup chain, which can only route origin invokers now.
         notifyingInvokers.set(invokers);
 
         // Switch the invokers reference in directory.
-        // Cannot switch before update main chain or after backup chain update success. Or that will cause state
-        // inconsistent.
+        // Cannot switch before update main chain or after backup chain update success. Or that will cause state inconsistent.
         switchAction.run();
 
         try {
             // Lock to prevent directory continue list
-            // The invokers reference in directory now should be the newly one and should always use the newly one once
-            // lock released.
+            // The invokers reference in directory now should be the newly one and should always use the newly one once lock released.
             lock.writeLock().lock();
 
             // Switch to main chain. Will update backup chain later.
             currentChain = mainChain;
 
             // Clean up temp variable.
-            // `availableInvokers` check is useless now, because `route` method will no longer receive any
-            // `availableInvokers` related
-            // with the origin invokers. The getter of invokers reference in directory is locked now, and will return
-            // newly invokers
+            // `availableInvokers` check is useless now, because `route` method will no longer receive any `availableInvokers` related
+            // with the origin invokers. The getter of invokers reference in directory is locked now, and will return newly invokers
             // once lock released.
             notifyingInvokers.set(null);
         } finally {
@@ -192,8 +186,7 @@ public class RouterChain<T> {
         }
 
         // Refresh main chain.
-        // No one can request to use main chain. `currentChain` is main chain. `route` method cannot access backup
-        // chain.
+        // No one can request to use main chain. `currentChain` is main chain. `route` method cannot access backup chain.
         try {
             // Lock main chain to wait all invocation end
             backupChain.getLock().writeLock().lock();

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/RuleConverter.java

@@ -14,6 +14,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.apache.dubbo.rpc.cluster;
 
 import org.apache.dubbo.common.URL;
@@ -25,4 +26,5 @@ import java.util.List;
 public interface RuleConverter {
 
     List<URL> convert(URL subscribeUrl, Object source);
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/SingleRouterChain.java

@@ -16,6 +16,13 @@
  */
 package org.apache.dubbo.rpc.cluster;
 
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.concurrent.locks.ReadWriteLock;
+import java.util.concurrent.locks.ReentrantReadWriteLock;
+
 import org.apache.dubbo.common.URL;
 import org.apache.dubbo.common.Version;
 import org.apache.dubbo.common.logger.ErrorTypeAwareLogger;
@@ -33,13 +40,6 @@ import org.apache.dubbo.rpc.cluster.router.state.BitList;
 import org.apache.dubbo.rpc.cluster.router.state.StateRouter;
 import org.apache.dubbo.rpc.cluster.router.state.TailStateRouter;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.concurrent.locks.ReadWriteLock;
-import java.util.concurrent.locks.ReentrantReadWriteLock;
-
 import static org.apache.dubbo.common.constants.LoggerCodeConstants.CLUSTER_FAILED_STOP;
 import static org.apache.dubbo.common.constants.LoggerCodeConstants.CLUSTER_NO_VALID_PROVIDER;
 import static org.apache.dubbo.common.constants.LoggerCodeConstants.INTERNAL_ERROR;
@@ -79,11 +79,7 @@ public class SingleRouterChain<T> {
 
     private final ReadWriteLock lock = new ReentrantReadWriteLock();
 
-    public SingleRouterChain(
-            List<Router> routers,
-            List<StateRouter<T>> stateRouters,
-            boolean shouldFailFast,
-            RouterSnapshotSwitcher routerSnapshotSwitcher) {
+    public SingleRouterChain(List<Router> routers, List<StateRouter<T>> stateRouters, boolean shouldFailFast, RouterSnapshotSwitcher routerSnapshotSwitcher) {
         initWithRouters(routers);
 
         initWithStateRouters(stateRouters);
@@ -138,12 +134,9 @@ public class SingleRouterChain<T> {
 
     public List<Invoker<T>> route(URL url, BitList<Invoker<T>> availableInvokers, Invocation invocation) {
         if (invokers.getOriginList() != availableInvokers.getOriginList()) {
-            logger.error(
-                    INTERNAL_ERROR,
-                    "",
-                    "Router's invoker size: " + invokers.getOriginList().size() + " Invocation's invoker size: "
-                            + availableInvokers.getOriginList().size(),
-                    "Reject to route, because the invokers has changed.");
+            logger.error(INTERNAL_ERROR, "", "Router's invoker size: " + invokers.getOriginList().size() +
+                    " Invocation's invoker size: " + availableInvokers.getOriginList().size(),
+                "Reject to route, because the invokers has changed.");
             throw new IllegalStateException("reject to route, because the invokers has changed.");
         }
         if (RpcContext.getServiceContext().isNeedPrintRouterSnapshot()) {
@@ -209,10 +202,9 @@ public class SingleRouterChain<T> {
     /**
      * Build each router's result
      */
-    public RouterSnapshotNode<T> buildRouterSnapshot(
-            URL url, BitList<Invoker<T>> availableInvokers, Invocation invocation) {
+    public RouterSnapshotNode<T> buildRouterSnapshot(URL url, BitList<Invoker<T>> availableInvokers, Invocation invocation) {
         BitList<Invoker<T>> resultInvokers = availableInvokers.clone();
-        RouterSnapshotNode<T> parentNode = new RouterSnapshotNode<>("Parent", resultInvokers.clone());
+        RouterSnapshotNode<T> parentNode = new RouterSnapshotNode<T>("Parent", resultInvokers.clone());
         parentNode.setNodeOutputInvokers(resultInvokers.clone());
 
         // 1. route state router
@@ -227,7 +219,7 @@ public class SingleRouterChain<T> {
             return parentNode;
         }
 
-        RouterSnapshotNode<T> commonRouterNode = new RouterSnapshotNode<>("CommonRouter", resultInvokers.clone());
+        RouterSnapshotNode<T> commonRouterNode = new RouterSnapshotNode<T>("CommonRouter", resultInvokers.clone());
         parentNode.appendNode(commonRouterNode);
         List<Invoker<T>> commonRouterResult = resultInvokers;
 
@@ -236,8 +228,7 @@ public class SingleRouterChain<T> {
             // Copy resultInvokers to a arrayList. BitList not support
             List<Invoker<T>> inputInvokers = new ArrayList<>(commonRouterResult);
 
-            RouterSnapshotNode<T> currentNode =
-                    new RouterSnapshotNode<>(router.getClass().getSimpleName(), inputInvokers);
+            RouterSnapshotNode<T> currentNode = new RouterSnapshotNode<T>(router.getClass().getSimpleName(), inputInvokers);
 
             // append to router node chain
             commonRouterNode.appendNode(currentNode);
@@ -277,27 +268,24 @@ public class SingleRouterChain<T> {
     }
 
     private void logRouterSnapshot(URL url, Invocation invocation, RouterSnapshotNode<T> snapshotNode) {
-        if (snapshotNode.getChainOutputInvokers() == null
-                || snapshotNode.getChainOutputInvokers().isEmpty()) {
+        if (snapshotNode.getChainOutputInvokers() == null ||
+            snapshotNode.getChainOutputInvokers().isEmpty()) {
             if (logger.isWarnEnabled()) {
                 String message = "No provider available after route for the service " + url.getServiceKey()
-                        + " from registry " + url.getAddress()
-                        + " on the consumer " + NetUtils.getLocalHost()
-                        + " using the dubbo version " + Version.getVersion() + ". Router snapshot is below: \n"
-                        + snapshotNode.toString();
+                    + " from registry " + url.getAddress()
+                    + " on the consumer " + NetUtils.getLocalHost()
+                    + " using the dubbo version " + Version.getVersion() + ". Router snapshot is below: \n" + snapshotNode.toString();
                 if (routerSnapshotSwitcher.isEnable()) {
                     routerSnapshotSwitcher.setSnapshot(message);
                 }
-                logger.warn(
-                        CLUSTER_NO_VALID_PROVIDER, "No provider available after route for the service", "", message);
+                logger.warn(CLUSTER_NO_VALID_PROVIDER, "No provider available after route for the service", "", message);
             }
         } else {
             if (logger.isInfoEnabled()) {
                 String message = "Router snapshot service " + url.getServiceKey()
-                        + " from registry " + url.getAddress()
-                        + " on the consumer " + NetUtils.getLocalHost()
-                        + " using the dubbo version " + Version.getVersion() + " is below: \n"
-                        + snapshotNode.toString();
+                    + " from registry " + url.getAddress()
+                    + " on the consumer " + NetUtils.getLocalHost()
+                    + " using the dubbo version " + Version.getVersion() + " is below: \n" + snapshotNode.toString();
                 if (routerSnapshotSwitcher.isEnable()) {
                     routerSnapshotSwitcher.setSnapshot(message);
                 }
@@ -342,12 +330,7 @@ public class SingleRouterChain<T> {
             try {
                 router.stop();
             } catch (Exception e) {
-                logger.error(
-                        CLUSTER_FAILED_STOP,
-                        "route stop failed",
-                        "",
-                        "Error trying to stop router " + router.getClass(),
-                        e);
+                logger.error(CLUSTER_FAILED_STOP, "route stop failed", "", "Error trying to stop router " + router.getClass(), e);
             }
         }
         routers = Collections.emptyList();
@@ -357,12 +340,7 @@ public class SingleRouterChain<T> {
             try {
                 router.stop();
             } catch (Exception e) {
-                logger.error(
-                        CLUSTER_FAILED_STOP,
-                        "StateRouter stop failed",
-                        "",
-                        "Error trying to stop StateRouter " + router.getClass(),
-                        e);
+                logger.error(CLUSTER_FAILED_STOP, "StateRouter stop failed", "", "Error trying to stop StateRouter " + router.getClass(), e);
             }
         }
         stateRouters = Collections.emptyList();

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/configurator/AbstractConfigurator.java

@@ -72,10 +72,7 @@ public abstract class AbstractConfigurator implements Configurator {
     @Override
     public URL configure(URL url) {
         // If override url is not enabled or is invalid, just return.
-        if (!configuratorUrl.getParameter(ENABLED_KEY, true)
-                || configuratorUrl.getHost() == null
-                || url == null
-                || url.getHost() == null) {
+        if (!configuratorUrl.getParameter(ENABLED_KEY, true) || configuratorUrl.getHost() == null || url == null || url.getHost() == null) {
             logger.info("Cannot apply configurator rule, the rule is disabled or is invalid: \n" + configuratorUrl);
             return url;
         }
@@ -101,9 +98,7 @@ public abstract class AbstractConfigurator implements Configurator {
 
     @Deprecated
     private URL configureDeprecated(URL url) {
-        // If override url has port, means it is a provider address. We want to control a specific provider with this
-        // override url, it may take effect on the specific provider instance or on consumers holding this provider
-        // instance.
+        // If override url has port, means it is a provider address. We want to control a specific provider with this override url, it may take effect on the specific provider instance or on consumers holding this provider instance.
         if (configuratorUrl.getPort() != 0) {
             if (url.getPort() == configuratorUrl.getPort()) {
                 return configureIfMatch(url.getHost(), url);
@@ -136,8 +131,7 @@ public abstract class AbstractConfigurator implements Configurator {
                         if (matcher.isMatch(host, url)) {
                             return doConfigure(url, configuratorUrl.removeParameters(conditionKeys));
                         } else {
-                            logger.debug("Cannot apply configurator rule, param mismatch, current params are " + url
-                                    + ", params in rule is " + matcher);
+                            logger.debug("Cannot apply configurator rule, param mismatch, current params are " + url + ", params in rule is " + matcher);
                         }
                     } else {
                         return doConfigure(url, configuratorUrl.removeParameters(conditionKeys));
@@ -147,8 +141,7 @@ public abstract class AbstractConfigurator implements Configurator {
                 }
             }
         } else {
-            logger.debug("Cannot apply configurator rule, host mismatch, current host is " + host + ", host in rule is "
-                    + configuratorUrl.getHost());
+            logger.debug("Cannot apply configurator rule, host mismatch, current host is " + host + ", host in rule is " + configuratorUrl.getHost());
         }
         return url;
     }
@@ -166,16 +159,15 @@ public abstract class AbstractConfigurator implements Configurator {
             String[] providerAddresses = providers.split(CommonConstants.COMMA_SEPARATOR);
             for (String address : providerAddresses) {
                 if (address.equals(url.getAddress())
-                        || address.equals(ANYHOST_VALUE)
-                        || address.equals(ANYHOST_VALUE + CommonConstants.GROUP_CHAR_SEPARATOR + ANY_VALUE)
-                        || address.equals(ANYHOST_VALUE + CommonConstants.GROUP_CHAR_SEPARATOR + url.getPort())
-                        || address.equals(url.getHost())) {
+                    || address.equals(ANYHOST_VALUE)
+                    || address.equals(ANYHOST_VALUE + CommonConstants.GROUP_CHAR_SEPARATOR + ANY_VALUE)
+                    || address.equals(ANYHOST_VALUE + CommonConstants.GROUP_CHAR_SEPARATOR + url.getPort())
+                    || address.equals(url.getHost())) {
                     match = true;
                 }
             }
             if (!match) {
-                logger.debug("Cannot apply configurator rule, provider address mismatch, current address "
-                        + url.getAddress() + ", address in rule is " + providers);
+                logger.debug("Cannot apply configurator rule, provider address mismatch, current address " + url.getAddress() + ", address in rule is " + providers);
                 return false;
             }
         }
@@ -183,18 +175,17 @@ public abstract class AbstractConfigurator implements Configurator {
         String configApplication = configuratorUrl.getApplication(configuratorUrl.getUsername());
         String currentApplication = url.getApplication(url.getUsername());
         if (configApplication != null
-                && !ANY_VALUE.equals(configApplication)
-                && !configApplication.equals(currentApplication)) {
-            logger.debug("Cannot apply configurator rule, application name mismatch, current application is "
-                    + currentApplication + ", application in rule is " + configApplication);
+            && !ANY_VALUE.equals(configApplication)
+            && !configApplication.equals(currentApplication)) {
+            logger.debug("Cannot apply configurator rule, application name mismatch, current application is " + currentApplication + ", application in rule is " + configApplication);
             return false;
         }
 
         String configServiceKey = configuratorUrl.getServiceKey();
         String currentServiceKey = url.getServiceKey();
-        if (!ANY_VALUE.equals(configServiceKey) && !configServiceKey.equals(currentServiceKey)) {
-            logger.debug("Cannot apply configurator rule, service mismatch, current service is " + currentServiceKey
-                    + ", service in rule is " + configServiceKey);
+        if (!ANY_VALUE.equals(configServiceKey)
+            && !configServiceKey.equals(currentServiceKey)) {
+            logger.debug("Cannot apply configurator rule, service mismatch, current service is " + currentServiceKey + ", service in rule is " + configServiceKey);
             return false;
         }
 
@@ -211,9 +202,8 @@ public abstract class AbstractConfigurator implements Configurator {
                 if (startWithTilde) {
                     conditionKeys.add(key);
                 }
-                if (value != null
-                        && !ANY_VALUE.equals(value)
-                        && !value.equals(url.getParameter(startWithTilde ? key.substring(1) : key))) {
+                if (value != null && !ANY_VALUE.equals(value)
+                    && !value.equals(url.getParameter(startWithTilde ? key.substring(1) : key))) {
                     result = false;
                     break;
                 }
@@ -223,7 +213,7 @@ public abstract class AbstractConfigurator implements Configurator {
     }
 
     private Set<String> genConditionKeys() {
-        Set<String> conditionKeys = new HashSet<>();
+        Set<String> conditionKeys = new HashSet<String>();
         conditionKeys.add(CATEGORY_KEY);
         conditionKeys.add(Constants.CHECK_KEY);
         conditionKeys.add(DYNAMIC_KEY);
@@ -243,4 +233,5 @@ public abstract class AbstractConfigurator implements Configurator {
     }
 
     protected abstract URL doConfigure(URL currentUrl, URL configUrl);
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/configurator/absent/AbsentConfigurator.java

@@ -32,4 +32,5 @@ public class AbsentConfigurator extends AbstractConfigurator {
     public URL doConfigure(URL currentUrl, URL configUrl) {
         return currentUrl.addParametersIfAbsent(configUrl.getParameters());
     }
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/configurator/absent/AbsentConfiguratorFactory.java

@@ -30,4 +30,5 @@ public class AbsentConfiguratorFactory implements ConfiguratorFactory {
     public Configurator getConfigurator(URL url) {
         return new AbsentConfigurator(url);
     }
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/configurator/override/OverrideConfigurator.java

@@ -36,4 +36,5 @@ public class OverrideConfigurator extends AbstractConfigurator {
         logger.info("Start overriding url " + currentUrl + " with override url " + configUrl);
         return currentUrl.addParameters(configUrl.getParameters());
     }
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/configurator/override/OverrideConfiguratorFactory.java

@@ -30,4 +30,5 @@ public class OverrideConfiguratorFactory implements ConfiguratorFactory {
     public Configurator getConfigurator(URL url) {
         return new OverrideConfigurator(url);
     }
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/configurator/parser/ConfigParser.java

@@ -23,14 +23,14 @@ import org.apache.dubbo.common.utils.StringUtils;
 import org.apache.dubbo.rpc.cluster.configurator.parser.model.ConfigItem;
 import org.apache.dubbo.rpc.cluster.configurator.parser.model.ConfiguratorConfig;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-
 import org.yaml.snakeyaml.LoaderOptions;
 import org.yaml.snakeyaml.Yaml;
 import org.yaml.snakeyaml.constructor.SafeConstructor;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+
 import static org.apache.dubbo.common.constants.CommonConstants.ANYHOST_VALUE;
 import static org.apache.dubbo.common.constants.CommonConstants.PROVIDER;
 import static org.apache.dubbo.common.constants.RegistryConstants.APP_DYNAMIC_CONFIGURATORS_CATEGORY;
@@ -104,12 +104,7 @@ public class ConfigParser {
             if (CollectionUtils.isNotEmpty(apps)) {
                 apps.forEach(app -> {
                     StringBuilder tmpUrlBuilder = new StringBuilder(urlBuilder);
-                    urls.add(appendMatchCondition(
-                            URL.valueOf(tmpUrlBuilder
-                                    .append("&application=")
-                                    .append(app)
-                                    .toString()),
-                            item));
+                    urls.add(appendMatchCondition(URL.valueOf(tmpUrlBuilder.append("&application=").append(app).toString()), item));
                 });
             } else {
                 urls.add(appendMatchCondition(URL.valueOf(urlBuilder.toString()), item));
@@ -160,8 +155,8 @@ public class ConfigParser {
         }
         Map<String, String> parameters = item.getParameters();
         if (CollectionUtils.isEmptyMap(parameters)) {
-            throw new IllegalStateException("Invalid configurator rule, please specify at least one parameter "
-                    + "you want to change in the rule.");
+            throw new IllegalStateException("Invalid configurator rule, please specify at least one parameter " +
+                "you want to change in the rule.");
         }
 
         parameters.forEach((k, v) -> {

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/configurator/parser/model/ConditionMatch.java

@@ -101,11 +101,12 @@ public class ConditionMatch {
 
     @Override
     public String toString() {
-        return "ConditionMatch{" + "address='"
-                + address + '\'' + "providerAddress='"
-                + providerAddress + '\'' + ", service='"
-                + service + '\'' + ", app='"
-                + app + '\'' + ", param='"
-                + param + '\'' + '}';
+        return "ConditionMatch{" +
+            "address='" + address + '\'' +
+            "providerAddress='" + providerAddress + '\'' +
+            ", service='" + service + '\'' +
+            ", app='" + app + '\'' +
+            ", param='" + param + '\'' +
+            '}';
     }
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/configurator/parser/model/ConfigItem.java

@@ -68,33 +68,32 @@ public class ConfigItem {
 
         Object addresses = map.get(ADDRESSES_KEY);
         if (addresses != null && List.class.isAssignableFrom(addresses.getClass())) {
-            configItem.setAddresses(
-                    ((List<Object>) addresses).stream().map(String::valueOf).collect(Collectors.toList()));
+            configItem.setAddresses(((List<Object>) addresses).stream()
+                    .map(String::valueOf).collect(Collectors.toList()));
         }
 
         Object providerAddresses = map.get(PROVIDER_ADDRESSES_KEY);
         if (providerAddresses != null && List.class.isAssignableFrom(providerAddresses.getClass())) {
-            configItem.setProviderAddresses(((List<Object>) providerAddresses)
-                    .stream().map(String::valueOf).collect(Collectors.toList()));
+            configItem.setProviderAddresses(((List<Object>) providerAddresses).stream()
+                    .map(String::valueOf).collect(Collectors.toList()));
         }
 
         Object services = map.get(SERVICES_KEY);
         if (services != null && List.class.isAssignableFrom(services.getClass())) {
-            configItem.setServices(
-                    ((List<Object>) services).stream().map(String::valueOf).collect(Collectors.toList()));
+            configItem.setServices(((List<Object>) services).stream()
+                    .map(String::valueOf).collect(Collectors.toList()));
         }
 
         Object applications = map.get(APPLICATIONS_KEY);
         if (applications != null && List.class.isAssignableFrom(applications.getClass())) {
-            configItem.setApplications(
-                    ((List<Object>) applications).stream().map(String::valueOf).collect(Collectors.toList()));
+            configItem.setApplications(((List<Object>) applications).stream()
+                .map(String::valueOf).collect(Collectors.toList()));
         }
 
         Object parameters = map.get(PARAMETERS_KEY);
         if (parameters != null && Map.class.isAssignableFrom(parameters.getClass())) {
-            configItem.setParameters(((Map<String, Object>) parameters)
-                    .entrySet().stream().collect(Collectors.toMap(Map.Entry::getKey, entry -> entry.getValue()
-                            .toString())));
+            configItem.setParameters(((Map<String, Object>) parameters).entrySet()
+                .stream().collect(Collectors.toMap(Map.Entry::getKey, entry -> entry.getValue().toString())));
         }
 
         try {
@@ -103,12 +102,7 @@ public class ConfigItem {
                 configItem.setMatch(PojoUtils.mapToPojo((Map<String, Object>) match, ConditionMatch.class));
             }
         } catch (Throwable t) {
-            logger.error(
-                    CLUSTER_FAILED_RECEIVE_RULE,
-                    " Failed to parse dynamic configuration rule",
-                    String.valueOf(map.get(MATCH_KEY)),
-                    "Error occurred when parsing rule component.",
-                    t);
+            logger.error(CLUSTER_FAILED_RECEIVE_RULE, " Failed to parse dynamic configuration rule", String.valueOf(map.get(MATCH_KEY)), "Error occurred when parsing rule component.", t);
         }
 
         configItem.setSide((String) map.get(SIDE_KEY));

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/configurator/parser/model/ConfiguratorConfig.java

@@ -52,8 +52,8 @@ public class ConfiguratorConfig {
 
         Object configs = map.get(CONFIGS_KEY);
         if (configs != null && List.class.isAssignableFrom(configs.getClass())) {
-            configuratorConfig.setConfigs(((List<Map<String, Object>>) configs)
-                    .stream().map(ConfigItem::parseFromMap).collect(Collectors.toList()));
+            configuratorConfig.setConfigs(((List<Map<String, Object>>) configs).stream()
+                    .map(ConfigItem::parseFromMap).collect(Collectors.toList()));
         }
 
         return configuratorConfig;

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/configurator/parser/model/ParamMatch.java

@@ -50,6 +50,9 @@ public class ParamMatch {
 
     @Override
     public String toString() {
-        return "ParamMatch{" + "key='" + key + '\'' + ", value='" + value + '\'' + '}';
+        return "ParamMatch{" +
+            "key='" + key + '\'' +
+            ", value='" + value + '\'' +
+            '}';
     }
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/directory/AbstractDirectory.java

@@ -25,7 +25,6 @@ import org.apache.dubbo.common.logger.ErrorTypeAwareLogger;
 import org.apache.dubbo.common.logger.LoggerFactory;
 import org.apache.dubbo.common.threadpool.manager.FrameworkExecutorRepository;
 import org.apache.dubbo.common.utils.ConcurrentHashSet;
-import org.apache.dubbo.common.utils.LockUtils;
 import org.apache.dubbo.common.utils.NetUtils;
 import org.apache.dubbo.common.utils.StringUtils;
 import org.apache.dubbo.metrics.event.MetricsEventBus;
@@ -57,8 +56,6 @@ import java.util.concurrent.ScheduledFuture;
 import java.util.concurrent.Semaphore;
 import java.util.concurrent.ThreadLocalRandom;
 import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicBoolean;
-import java.util.concurrent.locks.ReentrantLock;
 import java.util.stream.Collectors;
 
 import static org.apache.dubbo.common.constants.CommonConstants.CONSUMER;
@@ -125,8 +122,6 @@ public abstract class AbstractDirectory<T> implements Directory<T> {
 
     private volatile ScheduledFuture<?> connectivityCheckFuture;
 
-    private final ReentrantLock invokerRefreshLock = new ReentrantLock();
-
     /**
      * The max count of invokers for each reconnect task select to try to reconnect.
      */
@@ -165,20 +160,18 @@ public abstract class AbstractDirectory<T> implements Directory<T> {
 
         // remove some local only parameters
         applicationModel = url.getOrDefaultApplicationModel();
-        this.queryMap =
-                applicationModel.getBeanFactory().getBean(ClusterUtils.class).mergeLocalParams(queryMap);
+        this.queryMap = applicationModel.getBeanFactory().getBean(ClusterUtils.class).mergeLocalParams(queryMap);
 
         if (consumerUrl == null) {
-            String host =
-                    isNotEmpty(queryMap.get(REGISTER_IP_KEY)) ? queryMap.get(REGISTER_IP_KEY) : this.url.getHost();
+            String host = isNotEmpty(queryMap.get(REGISTER_IP_KEY)) ? queryMap.get(REGISTER_IP_KEY) : this.url.getHost();
             String path = isNotEmpty(queryMap.get(PATH_KEY)) ? queryMap.get(PATH_KEY) : queryMap.get(INTERFACE_KEY);
             String consumedProtocol = isNotEmpty(queryMap.get(PROTOCOL_KEY)) ? queryMap.get(PROTOCOL_KEY) : CONSUMER;
 
             URL consumerUrlFrom = this.url
-                    .setHost(host)
-                    .setPort(0)
-                    .setProtocol(consumedProtocol)
-                    .setPath(path);
+                .setHost(host)
+                .setPort(0)
+                .setProtocol(consumedProtocol)
+                .setPath(path);
             if (isUrlFromRegistry) {
                 // reserve parameters if url is already a consumer url
                 consumerUrlFrom = consumerUrlFrom.clearParameters();
@@ -186,23 +179,19 @@ public abstract class AbstractDirectory<T> implements Directory<T> {
             this.consumerUrl = consumerUrlFrom.addParameters(queryMap);
         }
 
-        this.connectivityExecutor = applicationModel
-                .getFrameworkModel()
-                .getBeanFactory()
-                .getBean(FrameworkExecutorRepository.class)
-                .getConnectivityScheduledExecutor();
+        this.connectivityExecutor = applicationModel.getFrameworkModel().getBeanFactory()
+            .getBean(FrameworkExecutorRepository.class).getConnectivityScheduledExecutor();
         Configuration configuration = ConfigurationUtils.getGlobalConfiguration(url.getOrDefaultModuleModel());
         this.reconnectTaskTryCount = configuration.getInt(RECONNECT_TASK_TRY_COUNT, DEFAULT_RECONNECT_TASK_TRY_COUNT);
         this.reconnectTaskPeriod = configuration.getInt(RECONNECT_TASK_PERIOD, DEFAULT_RECONNECT_TASK_PERIOD);
         setRouterChain(routerChain);
+
     }
 
     @Override
     public List<Invoker<T>> list(Invocation invocation) throws RpcException {
         if (destroyed) {
-            throw new RpcException(
-                    "Directory of type " + this.getClass().getSimpleName() + " already destroyed for service "
-                            + getConsumerUrl().getServiceKey() + " from registry " + getUrl());
+            throw new RpcException("Directory of type " + this.getClass().getSimpleName() + " already destroyed for service " + getConsumerUrl().getServiceKey() + " from registry " + getUrl());
         }
 
         BitList<Invoker<T>> availableInvokers;
@@ -233,16 +222,12 @@ public abstract class AbstractDirectory<T> implements Directory<T> {
             if (routedResult.isEmpty()) {
                 // 2-2 - No provider available.
 
-                logger.warn(
-                        CLUSTER_NO_VALID_PROVIDER,
-                        "provider server or registry center crashed",
-                        "",
-                        "No provider available after connectivity filter for the service "
-                                + getConsumerUrl().getServiceKey()
-                                + " All routed invokers' size: " + routedResult.size()
-                                + " from registry " + this
-                                + " on the consumer " + NetUtils.getLocalHost()
-                                + " using the dubbo version " + Version.getVersion() + ".");
+                logger.warn(CLUSTER_NO_VALID_PROVIDER, "provider server or registry center crashed", "",
+                    "No provider available after connectivity filter for the service " + getConsumerUrl().getServiceKey()
+                        + " All routed invokers' size: " + routedResult.size()
+                        + " from registry " + this
+                        + " on the consumer " + NetUtils.getLocalHost()
+                        + " using the dubbo version " + Version.getVersion() + ".");
             }
             return Collections.unmodifiableList(routedResult);
         } finally {
@@ -298,109 +283,74 @@ public abstract class AbstractDirectory<T> implements Directory<T> {
 
     @Override
     public void addInvalidateInvoker(Invoker<T> invoker) {
-        LockUtils.safeLock(invokerRefreshLock, LockUtils.DEFAULT_TIMEOUT, () -> {
-            // 1. remove this invoker from validInvokers list, this invoker will not be listed in the next time
-            if (removeValidInvoker(invoker)) {
-                // 2. add this invoker to reconnect list
-                invokersToReconnect.add(invoker);
-                // 3. try start check connectivity task
-                checkConnectivity();
+        // 1. remove this invoker from validInvokers list, this invoker will not be listed in the next time
+        if (removeValidInvoker(invoker)) {
+            // 2. add this invoker to reconnect list
+            invokersToReconnect.add(invoker);
+            // 3. try start check connectivity task
+            checkConnectivity();
 
-                logger.info("The invoker " + invoker.getUrl()
-                        + " has been added to invalidate list due to connectivity problem. "
-                        + "Will trying to reconnect to it in the background.");
-            }
-        });
+            logger.info("The invoker " + invoker.getUrl() + " has been added to invalidate list due to connectivity problem. " +
+                "Will trying to reconnect to it in the background.");
+        }
     }
 
     public void checkConnectivity() {
         // try to submit task, to ensure there is only one task at most for each directory
         if (checkConnectivityPermit.tryAcquire()) {
-            this.connectivityCheckFuture = connectivityExecutor.schedule(
-                    () -> {
-                        try {
-                            if (isDestroyed()) {
-                                return;
+            this.connectivityCheckFuture = connectivityExecutor.schedule(() -> {
+                try {
+                    if (isDestroyed()) {
+                        return;
+                    }
+                    RpcContext.getServiceContext().setConsumerUrl(getConsumerUrl());
+                    List<Invoker<T>> needDeleteList = new ArrayList<>();
+                    List<Invoker<T>> invokersToTry = new ArrayList<>();
+
+                    // 1. pick invokers from invokersToReconnect
+                    // limit max reconnectTaskTryCount, prevent this task hang up all the connectivityExecutor for long time
+                    if (invokersToReconnect.size() < reconnectTaskTryCount) {
+                        invokersToTry.addAll(invokersToReconnect);
+                    } else {
+                        for (int i = 0; i < reconnectTaskTryCount; i++) {
+                            Invoker<T> tInvoker = invokersToReconnect.get(ThreadLocalRandom.current().nextInt(invokersToReconnect.size()));
+                            if (!invokersToTry.contains(tInvoker)) {
+                                // ignore if is selected, invokersToTry's size is always smaller than reconnectTaskTryCount + 1
+                                invokersToTry.add(tInvoker);
                             }
-                            RpcContext.getServiceContext().setConsumerUrl(getConsumerUrl());
-                            List<Invoker<T>> needDeleteList = new ArrayList<>();
-                            List<Invoker<T>> invokersToTry = new ArrayList<>();
-
-                            // 1. pick invokers from invokersToReconnect
-                            // limit max reconnectTaskTryCount, prevent this task hang up all the connectivityExecutor
-                            // for long time
-                            LockUtils.safeLock(invokerRefreshLock, LockUtils.DEFAULT_TIMEOUT, () -> {
-                                if (invokersToReconnect.size() < reconnectTaskTryCount) {
-                                    invokersToTry.addAll(invokersToReconnect);
-                                } else {
-                                    for (int i = 0; i < reconnectTaskTryCount; i++) {
-                                        Invoker<T> tInvoker = invokersToReconnect.get(
-                                                ThreadLocalRandom.current().nextInt(invokersToReconnect.size()));
-                                        if (!invokersToTry.contains(tInvoker)) {
-                                            // ignore if is selected, invokersToTry's size is always smaller than
-                                            // reconnectTaskTryCount + 1
-                                            invokersToTry.add(tInvoker);
-                                        }
-                                    }
-                                }
-                            });
-
-                            // 2. try to check the invoker's status
-                            for (Invoker<T> invoker : invokersToTry) {
-                                AtomicBoolean invokerExist = new AtomicBoolean(false);
-                                LockUtils.safeLock(invokerRefreshLock, LockUtils.DEFAULT_TIMEOUT, () -> {
-                                    invokerExist.set(invokers.contains(invoker));
-                                });
-                                // Should not lock here, `invoker.isAvailable` may need some time to check
-                                if (invokerExist.get()) {
-                                    if (invoker.isAvailable()) {
-                                        needDeleteList.add(invoker);
-                                    }
-                                } else {
-                                    needDeleteList.add(invoker);
-                                }
-                            }
-
-                            // 3. recover valid invoker
-                            LockUtils.safeLock(invokerRefreshLock, LockUtils.DEFAULT_TIMEOUT, () -> {
-                                for (Invoker<T> tInvoker : needDeleteList) {
-                                    if (invokers.contains(tInvoker)) {
-                                        addValidInvoker(tInvoker);
-                                        logger.info("Recover service address: " + tInvoker.getUrl()
-                                                + "  from invalid list.");
-                                    } else {
-                                        logger.info(
-                                                "The invoker " + tInvoker.getUrl()
-                                                        + " has been removed from invokers list. Will remove it in reconnect list.");
-                                    }
-                                    invokersToReconnect.remove(tInvoker);
-                                }
-                            });
-                        } catch (Throwable t) {
-                            logger.error(
-                                    LoggerCodeConstants.INTERNAL_ERROR,
-                                    "",
-                                    "",
-                                    "Error occurred when check connectivity. ",
-                                    t);
-                        } finally {
-                            checkConnectivityPermit.release();
                         }
+                    }
 
-                        // 4. submit new task if it has more to recover
-                        LockUtils.safeLock(invokerRefreshLock, LockUtils.DEFAULT_TIMEOUT, () -> {
-                            if (!invokersToReconnect.isEmpty()) {
-                                checkConnectivity();
+                    // 2. try to check the invoker's status
+                    for (Invoker<T> invoker : invokersToTry) {
+                        if (invokers.contains(invoker)) {
+                            if (invoker.isAvailable()) {
+                                needDeleteList.add(invoker);
                             }
-                        });
-                        MetricsEventBus.publish(RegistryEvent.refreshDirectoryEvent(
-                                applicationModel, getSummary(), getDirectoryMeta()));
-                    },
-                    reconnectTaskPeriod,
-                    TimeUnit.MILLISECONDS);
+                        } else {
+                            needDeleteList.add(invoker);
+                        }
+                    }
+
+                    // 3. recover valid invoker
+                    for (Invoker<T> tInvoker : needDeleteList) {
+                        if (invokers.contains(tInvoker)) {
+                            addValidInvoker(tInvoker);
+                            logger.info("Recover service address: " + tInvoker.getUrl() + "  from invalid list.");
+                        }
+                        invokersToReconnect.remove(tInvoker);
+                    }
+                } finally {
+                    checkConnectivityPermit.release();
+                }
+
+                // 4. submit new task if it has more to recover
+                if (!invokersToReconnect.isEmpty()) {
+                    checkConnectivity();
+                }
+            }, reconnectTaskPeriod, TimeUnit.MILLISECONDS);
         }
-        MetricsEventBus.publish(
-                RegistryEvent.refreshDirectoryEvent(applicationModel, getSummary(), getDirectoryMeta()));
+        MetricsEventBus.publish(RegistryEvent.refreshDirectoryEvent(applicationModel, getSummary(), getDirectoryMeta()));
     }
 
     /**
@@ -411,20 +361,17 @@ public abstract class AbstractDirectory<T> implements Directory<T> {
      * 4. all the invokers disappeared from total invokers should be removed in the disabled invokers list
      */
     public void refreshInvoker() {
-        LockUtils.safeLock(invokerRefreshLock, LockUtils.DEFAULT_TIMEOUT, () -> {
-            if (invokersInitialized) {
-                refreshInvokerInternal();
-            }
-        });
-        MetricsEventBus.publish(
-                RegistryEvent.refreshDirectoryEvent(applicationModel, getSummary(), getDirectoryMeta()));
+        if (invokersInitialized) {
+            refreshInvokerInternal();
+        }
+        MetricsEventBus.publish(RegistryEvent.refreshDirectoryEvent(applicationModel, getSummary(), getDirectoryMeta()));
     }
 
     protected Map<String, String> getDirectoryMeta() {
         return Collections.emptyMap();
     }
 
-    private void refreshInvokerInternal() {
+    private synchronized void refreshInvokerInternal() {
         BitList<Invoker<T>> copiedInvokers = invokers.clone();
         refreshInvokers(copiedInvokers, invokersToReconnect);
         refreshInvokers(copiedInvokers, disabledInvokers);
@@ -445,47 +392,37 @@ public abstract class AbstractDirectory<T> implements Directory<T> {
 
     @Override
     public void addDisabledInvoker(Invoker<T> invoker) {
-        LockUtils.safeLock(invokerRefreshLock, LockUtils.DEFAULT_TIMEOUT, () -> {
-            if (invokers.contains(invoker)) {
-                disabledInvokers.add(invoker);
-                removeValidInvoker(invoker);
-                logger.info("Disable service address: " + invoker.getUrl() + ".");
-            }
-        });
-        MetricsEventBus.publish(
-                RegistryEvent.refreshDirectoryEvent(applicationModel, getSummary(), getDirectoryMeta()));
+        if (invokers.contains(invoker)) {
+            disabledInvokers.add(invoker);
+            removeValidInvoker(invoker);
+            logger.info("Disable service address: " + invoker.getUrl() + ".");
+        }
+        MetricsEventBus.publish(RegistryEvent.refreshDirectoryEvent(applicationModel, getSummary(), getDirectoryMeta()));
     }
 
     @Override
     public void recoverDisabledInvoker(Invoker<T> invoker) {
-        LockUtils.safeLock(invokerRefreshLock, LockUtils.DEFAULT_TIMEOUT, () -> {
-            if (disabledInvokers.remove(invoker)) {
-                try {
-                    addValidInvoker(invoker);
-                    logger.info("Recover service address: " + invoker.getUrl() + "  from disabled list.");
-                } catch (Throwable ignore) {
+        if (disabledInvokers.remove(invoker)) {
+            try {
+                addValidInvoker(invoker);
+                logger.info("Recover service address: " + invoker.getUrl() + "  from disabled list.");
+            } catch (Throwable ignore) {
 
-                }
             }
-        });
-        MetricsEventBus.publish(
-                RegistryEvent.refreshDirectoryEvent(applicationModel, getSummary(), getDirectoryMeta()));
+        }
+        MetricsEventBus.publish(RegistryEvent.refreshDirectoryEvent(applicationModel, getSummary(), getDirectoryMeta()));
     }
 
     protected final void refreshRouter(BitList<Invoker<T>> newlyInvokers, Runnable switchAction) {
         try {
             routerChain.setInvokers(newlyInvokers.clone(), switchAction);
         } catch (Throwable t) {
-            logger.error(
-                    LoggerCodeConstants.INTERNAL_ERROR,
-                    "",
-                    "",
-                    "Error occurred when refreshing router chain. " + "The addresses from notification: "
-                            + newlyInvokers.stream()
-                                    .map(Invoker::getUrl)
-                                    .map(URL::getAddress)
-                                    .collect(Collectors.joining(", ")),
-                    t);
+            logger.error(LoggerCodeConstants.INTERNAL_ERROR, "", "", "Error occurred when refreshing router chain. " +
+                "The addresses from notification: " +
+                newlyInvokers.stream()
+                    .map(Invoker::getUrl)
+                    .map(URL::getAddress)
+                    .collect(Collectors.joining(", ")), t);
 
             throw t;
         }
@@ -526,48 +463,40 @@ public abstract class AbstractDirectory<T> implements Directory<T> {
     }
 
     protected void setInvokers(BitList<Invoker<T>> invokers) {
-        LockUtils.safeLock(invokerRefreshLock, LockUtils.DEFAULT_TIMEOUT, () -> {
-            this.invokers = invokers;
-            refreshInvokerInternal();
-            this.invokersInitialized = true;
-        });
+        this.invokers = invokers;
+        refreshInvokerInternal();
+        this.invokersInitialized = true;
 
-        MetricsEventBus.publish(
-                RegistryEvent.refreshDirectoryEvent(applicationModel, getSummary(), getDirectoryMeta()));
+        MetricsEventBus.publish(RegistryEvent.refreshDirectoryEvent(applicationModel, getSummary(), getDirectoryMeta()));
     }
 
     protected void destroyInvokers() {
         // set empty instead of clearing to support concurrent access.
-        LockUtils.safeLock(invokerRefreshLock, LockUtils.DEFAULT_TIMEOUT, () -> {
-            this.invokers = BitList.emptyList();
-            this.validInvokers = BitList.emptyList();
-            this.invokersInitialized = false;
-        });
+        this.invokers = BitList.emptyList();
+        this.validInvokers = BitList.emptyList();
+        this.invokersInitialized = false;
     }
 
     private boolean addValidInvoker(Invoker<T> invoker) {
-        AtomicBoolean result = new AtomicBoolean(false);
-        LockUtils.safeLock(invokerRefreshLock, LockUtils.DEFAULT_TIMEOUT, () -> {
-            result.set(this.validInvokers.add(invoker));
-        });
-        MetricsEventBus.publish(
-                RegistryEvent.refreshDirectoryEvent(applicationModel, getSummary(), getDirectoryMeta()));
-        return result.get();
+        boolean result;
+        synchronized (this.validInvokers) {
+            result = this.validInvokers.add(invoker);
+        }
+        MetricsEventBus.publish(RegistryEvent.refreshDirectoryEvent(applicationModel, getSummary(), getDirectoryMeta()));
+        return result;
     }
 
     private boolean removeValidInvoker(Invoker<T> invoker) {
-        AtomicBoolean result = new AtomicBoolean(false);
-        LockUtils.safeLock(invokerRefreshLock, LockUtils.DEFAULT_TIMEOUT, () -> {
-            result.set(this.validInvokers.remove(invoker));
-        });
-        MetricsEventBus.publish(
-                RegistryEvent.refreshDirectoryEvent(applicationModel, getSummary(), getDirectoryMeta()));
-        return result.get();
+        boolean result;
+        synchronized (this.validInvokers) {
+            result = this.validInvokers.remove(invoker);
+        }
+        MetricsEventBus.publish(RegistryEvent.refreshDirectoryEvent(applicationModel, getSummary(), getDirectoryMeta()));
+        return result;
     }
 
-    protected abstract List<Invoker<T>> doList(
-            SingleRouterChain<T> singleRouterChain, BitList<Invoker<T>> invokers, Invocation invocation)
-            throws RpcException;
+    protected abstract List<Invoker<T>> doList(SingleRouterChain<T> singleRouterChain,
+                                               BitList<Invoker<T>> invokers, Invocation invocation) throws RpcException;
 
     protected String joinValidInvokerAddresses() {
         BitList<Invoker<T>> validInvokers = getValidInvokers().clone();
@@ -575,10 +504,10 @@ public abstract class AbstractDirectory<T> implements Directory<T> {
             return "empty";
         }
         return validInvokers.stream()
-                .limit(5)
-                .map(Invoker::getUrl)
-                .map(URL::getAddress)
-                .collect(Collectors.joining(","));
+            .limit(5)
+            .map(Invoker::getUrl)
+            .map(URL::getAddress)
+            .collect(Collectors.joining(","));
     }
 
     private Map<MetricsKey, Map<String, Integer>> getSummary() {
@@ -597,27 +526,25 @@ public abstract class AbstractDirectory<T> implements Directory<T> {
 
     @Override
     public String toString() {
-        return "Directory(" + "invokers: "
-                + invokers.size() + "["
-                + invokers.stream()
-                        .map(Invoker::getUrl)
-                        .map(URL::getAddress)
-                        .limit(3)
-                        .collect(Collectors.joining(", "))
-                + "]" + ", validInvokers: "
-                + validInvokers.size() + "["
-                + validInvokers.stream()
-                        .map(Invoker::getUrl)
-                        .map(URL::getAddress)
-                        .limit(3)
-                        .collect(Collectors.joining(", "))
-                + "]" + ", invokersToReconnect: "
-                + invokersToReconnect.size() + "["
-                + invokersToReconnect.stream()
-                        .map(Invoker::getUrl)
-                        .map(URL::getAddress)
-                        .limit(3)
-                        .collect(Collectors.joining(", "))
-                + "]" + ')';
+        return "Directory(" +
+            "invokers: " + invokers.size() + "[" +
+            invokers.stream()
+                .map(Invoker::getUrl)
+                .map(URL::getAddress)
+                .limit(3)
+                .collect(Collectors.joining(", ")) + "]" +
+            ", validInvokers: " + validInvokers.size() + "[" +
+            validInvokers.stream()
+                .map(Invoker::getUrl)
+                .map(URL::getAddress)
+                .limit(3)
+                .collect(Collectors.joining(", ")) + "]" +
+            ", invokersToReconnect: " + invokersToReconnect.size() + "[" +
+            invokersToReconnect.stream()
+                .map(Invoker::getUrl)
+                .map(URL::getAddress)
+                .limit(3)
+                .collect(Collectors.joining(", ")) + "]" +
+            ')';
     }
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/directory/StaticDirectory.java

@@ -55,12 +55,7 @@ public class StaticDirectory<T> extends AbstractDirectory<T> {
     }
 
     public StaticDirectory(URL url, List<Invoker<T>> invokers, RouterChain<T> routerChain) {
-        super(
-                url == null && CollectionUtils.isNotEmpty(invokers)
-                        ? invokers.get(0).getUrl()
-                        : url,
-                routerChain,
-                false);
+        super(url == null && CollectionUtils.isNotEmpty(invokers) ? invokers.get(0).getUrl() : url, routerChain, false);
         if (CollectionUtils.isEmpty(invokers)) {
             throw new IllegalArgumentException("invokers == null");
         }
@@ -106,34 +101,28 @@ public class StaticDirectory<T> extends AbstractDirectory<T> {
 
     public void buildRouterChain() {
         RouterChain<T> routerChain = RouterChain.buildChain(getInterface(), getUrl());
-        routerChain.setInvokers(getInvokers(), () -> {});
+        routerChain.setInvokers(getInvokers(), () -> {
+        });
         this.setRouterChain(routerChain);
     }
 
     public void notify(List<Invoker<T>> invokers) {
         BitList<Invoker<T>> bitList = new BitList<>(invokers);
         if (routerChain != null) {
-            refreshRouter(bitList.clone(), () -> this.setInvokers(bitList));
+            refreshRouter(bitList.clone(),  () -> this.setInvokers(bitList));
         } else {
             this.setInvokers(bitList);
         }
     }
 
     @Override
-    protected List<Invoker<T>> doList(
-            SingleRouterChain<T> singleRouterChain, BitList<Invoker<T>> invokers, Invocation invocation)
-            throws RpcException {
+    protected List<Invoker<T>> doList(SingleRouterChain<T> singleRouterChain, BitList<Invoker<T>> invokers, Invocation invocation) throws RpcException {
         if (singleRouterChain != null) {
             try {
                 List<Invoker<T>> finalInvokers = singleRouterChain.route(getConsumerUrl(), invokers, invocation);
                 return finalInvokers == null ? BitList.emptyList() : finalInvokers;
             } catch (Throwable t) {
-                logger.error(
-                        CLUSTER_FAILED_SITE_SELECTION,
-                        "Failed to execute router",
-                        "",
-                        "Failed to execute router: " + getUrl() + ", cause: " + t.getMessage(),
-                        t);
+                logger.error(CLUSTER_FAILED_SITE_SELECTION, "Failed to execute router", "", "Failed to execute router: " + getUrl() + ", cause: " + t.getMessage(), t);
                 return BitList.emptyList();
             }
         }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/factory/DefaultClusterInvokerFactory.java

@@ -0,0 +1,56 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.dubbo.rpc.cluster.factory;
+
+
+import org.apache.dubbo.rpc.Invoker;
+import org.apache.dubbo.rpc.cluster.ClusterInvokerFactory;
+import org.apache.dubbo.rpc.cluster.Directory;
+import org.apache.dubbo.rpc.model.ScopeModel;
+
+import java.util.List;
+
+import static org.apache.dubbo.rpc.cluster.Cluster.getCluster;
+
+public class DefaultClusterInvokerFactory implements ClusterInvokerFactory {
+
+    private final List<DirectoryStrategy> strategies;
+
+    public DefaultClusterInvokerFactory(ScopeModel scopeModel) {
+        this.strategies = scopeModel.getBeanFactory().getBeansOfType(DirectoryStrategy.class);
+    }
+
+    /**
+     * Build an Invoker with StaticDirectory.
+     *
+     * @param config config
+     * @return ClusterInvoker
+     */
+    @Override
+    public Invoker<?> getInvoker(ClusterInvokerConfig config) {
+        Directory<?> directory = null;
+        for (DirectoryStrategy strategy : strategies) {
+            if (strategy.name().equals(config.getDirectoryName())) {
+                directory = strategy.createDirectory(config);
+                break;
+            }
+        }
+        return getCluster(config.getScopeModel(), config.getClusterName(), config.isWrappedCluster())
+                .join(directory,config.isWrappedInvoker());
+    }
+
+}

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/factory/DirectoryStrategy.java

@@ -14,16 +14,14 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.apache.dubbo.config.bootstrap.rest;
+package org.apache.dubbo.rpc.cluster.factory;
 
-import java.util.concurrent.atomic.AtomicLong;
+import org.apache.dubbo.rpc.cluster.ClusterInvokerFactory;
+import org.apache.dubbo.rpc.cluster.Directory;
 
-public class UserServiceImpl implements UserService {
+public interface DirectoryStrategy {
 
-    private final AtomicLong idGen = new AtomicLong();
+    ClusterInvokerFactory.DirectoryNames name();
 
-    @Override
-    public User getUser(Long id) {
-        return new User(id, "username" + id);
-    }
+    <T> Directory<T> createDirectory(ClusterInvokerFactory.ClusterInvokerConfig clusterInvokerConfig);
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/factory/StaticDirectoryStrategy.java

@@ -0,0 +1,34 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.dubbo.rpc.cluster.factory;
+
+import org.apache.dubbo.rpc.cluster.ClusterInvokerFactory;
+import org.apache.dubbo.rpc.cluster.Directory;
+import org.apache.dubbo.rpc.cluster.directory.StaticDirectory;
+
+public class StaticDirectoryStrategy implements DirectoryStrategy {
+
+    @Override
+    public ClusterInvokerFactory.DirectoryNames name() {
+        return ClusterInvokerFactory.DirectoryNames.STATIC;
+    }
+
+    @Override
+    public <T> Directory<T> createDirectory(ClusterInvokerFactory.ClusterInvokerConfig clusterInvokerConfig) {
+        return new StaticDirectory(clusterInvokerConfig.getServiceUrl(),clusterInvokerConfig.getInvokersToJoin());
+    }
+}

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/filter/DefaultFilterChainBuilder.java

@@ -47,14 +47,12 @@ public class DefaultFilterChainBuilder implements FilterChainBuilder {
         List<ModuleModel> moduleModels = getModuleModelsFromUrl(url);
         List<Filter> filters;
         if (moduleModels != null && moduleModels.size() == 1) {
-            filters = ScopeModelUtil.getExtensionLoader(Filter.class, moduleModels.get(0))
-                    .getActivateExtension(url, key, group);
+            filters = ScopeModelUtil.getExtensionLoader(Filter.class, moduleModels.get(0)).getActivateExtension(url, key, group);
         } else if (moduleModels != null && moduleModels.size() > 1) {
             filters = new ArrayList<>();
             List<ExtensionDirector> directors = new ArrayList<>();
             for (ModuleModel moduleModel : moduleModels) {
-                List<Filter> tempFilters = ScopeModelUtil.getExtensionLoader(Filter.class, moduleModel)
-                        .getActivateExtension(url, key, group);
+                List<Filter> tempFilters = ScopeModelUtil.getExtensionLoader(Filter.class, moduleModel).getActivateExtension(url, key, group);
                 filters.addAll(tempFilters);
                 directors.add(moduleModel.getExtensionDirector());
             }
@@ -64,6 +62,7 @@ public class DefaultFilterChainBuilder implements FilterChainBuilder {
             filters = ScopeModelUtil.getExtensionLoader(Filter.class, null).getActivateExtension(url, key, group);
         }
 
+
         if (!CollectionUtils.isEmpty(filters)) {
             for (int i = filters.size() - 1; i >= 0; i--) {
                 final Filter filter = filters.get(i);
@@ -80,29 +79,25 @@ public class DefaultFilterChainBuilder implements FilterChainBuilder {
      * build consumer cluster filter chain
      */
     @Override
-    public <T> ClusterInvoker<T> buildClusterInvokerChain(
-            final ClusterInvoker<T> originalInvoker, String key, String group) {
+    public <T> ClusterInvoker<T> buildClusterInvokerChain(final ClusterInvoker<T> originalInvoker, String key, String group) {
         ClusterInvoker<T> last = originalInvoker;
         URL url = originalInvoker.getUrl();
         List<ModuleModel> moduleModels = getModuleModelsFromUrl(url);
         List<ClusterFilter> filters;
         if (moduleModels != null && moduleModels.size() == 1) {
-            filters = ScopeModelUtil.getExtensionLoader(ClusterFilter.class, moduleModels.get(0))
-                    .getActivateExtension(url, key, group);
+            filters = ScopeModelUtil.getExtensionLoader(ClusterFilter.class, moduleModels.get(0)).getActivateExtension(url, key, group);
         } else if (moduleModels != null && moduleModels.size() > 1) {
             filters = new ArrayList<>();
             List<ExtensionDirector> directors = new ArrayList<>();
             for (ModuleModel moduleModel : moduleModels) {
-                List<ClusterFilter> tempFilters = ScopeModelUtil.getExtensionLoader(ClusterFilter.class, moduleModel)
-                        .getActivateExtension(url, key, group);
+                List<ClusterFilter> tempFilters = ScopeModelUtil.getExtensionLoader(ClusterFilter.class, moduleModel).getActivateExtension(url, key, group);
                 filters.addAll(tempFilters);
                 directors.add(moduleModel.getExtensionDirector());
             }
             filters = sortingAndDeduplication(filters, directors);
 
         } else {
-            filters =
-                    ScopeModelUtil.getExtensionLoader(ClusterFilter.class, null).getActivateExtension(url, key, group);
+            filters = ScopeModelUtil.getExtensionLoader(ClusterFilter.class, null).getActivateExtension(url, key, group);
         }
 
         if (!CollectionUtils.isEmpty(filters)) {
@@ -146,4 +141,5 @@ public class DefaultFilterChainBuilder implements FilterChainBuilder {
         }
         return moduleModels;
     }
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/filter/FilterChainBuilder.java

@@ -92,8 +92,7 @@ public interface FilterChainBuilder {
         public Result invoke(Invocation invocation) throws RpcException {
             Result asyncResult;
             try {
-                InvocationProfilerUtils.enterDetailProfiler(
-                        invocation, () -> "Filter " + filter.getClass().getName() + " invoke.");
+                InvocationProfilerUtils.enterDetailProfiler(invocation, () -> "Filter " + filter.getClass().getName() + " invoke.");
                 asyncResult = filter.invoke(nextNode, invocation);
             } catch (Exception e) {
                 InvocationProfilerUtils.releaseDetailProfiler(invocation);
@@ -160,11 +159,12 @@ public interface FilterChainBuilder {
      * @param <TYPE>
      */
     class ClusterFilterChainNode<T, TYPE extends ClusterInvoker<T>, FILTER extends BaseFilter>
-            extends FilterChainNode<T, TYPE, FILTER> implements ClusterInvoker<T> {
+        extends FilterChainNode<T, TYPE, FILTER> implements ClusterInvoker<T> {
         public ClusterFilterChainNode(TYPE originalInvoker, Invoker<T> nextNode, FILTER filter) {
             super(originalInvoker, nextNode, filter);
         }
 
+
         @Override
         public URL getRegistryUrl() {
             return getOriginalInvoker().getRegistryUrl();
@@ -182,8 +182,7 @@ public interface FilterChainBuilder {
     }
 
     class CallbackRegistrationInvoker<T, FILTER extends BaseFilter> implements Invoker<T> {
-        private static final ErrorTypeAwareLogger LOGGER =
-                LoggerFactory.getErrorTypeAwareLogger(CallbackRegistrationInvoker.class);
+        private static final ErrorTypeAwareLogger LOGGER = LoggerFactory.getErrorTypeAwareLogger(CallbackRegistrationInvoker.class);
         final Invoker<T> filterInvoker;
         final List<FILTER> filters;
 
@@ -224,20 +223,9 @@ public interface FilterChainBuilder {
                             }
                         }
                     } catch (RuntimeException runtimeException) {
-                        LOGGER.error(
-                                CLUSTER_EXECUTE_FILTER_EXCEPTION,
-                                "the custom filter is abnormal",
-                                "",
-                                String.format(
-                                        "Exception occurred while executing the %s filter named %s.",
-                                        i, filter.getClass().getSimpleName()));
+                        LOGGER.error(CLUSTER_EXECUTE_FILTER_EXCEPTION, "the custom filter is abnormal", "", String.format("Exception occurred while executing the %s filter named %s.", i, filter.getClass().getSimpleName()));
                         if (LOGGER.isDebugEnabled()) {
-                            LOGGER.debug(String.format(
-                                    "Whole filter list is: %s",
-                                    filters.stream()
-                                            .map(tmpFilter ->
-                                                    tmpFilter.getClass().getSimpleName())
-                                            .collect(Collectors.toList())));
+                            LOGGER.debug(String.format("Whole filter list is: %s", filters.stream().map(tmpFilter -> tmpFilter.getClass().getSimpleName()).collect(Collectors.toList())));
                         }
                         filterRuntimeException = runtimeException;
                         t = runtimeException;
@@ -276,12 +264,11 @@ public interface FilterChainBuilder {
         }
     }
 
-    class ClusterCallbackRegistrationInvoker<T, FILTER extends BaseFilter>
-            extends CallbackRegistrationInvoker<T, FILTER> implements ClusterInvoker<T> {
+    class ClusterCallbackRegistrationInvoker<T, FILTER extends BaseFilter> extends CallbackRegistrationInvoker<T, FILTER>
+        implements ClusterInvoker<T> {
         private ClusterInvoker<T> originalInvoker;
 
-        public ClusterCallbackRegistrationInvoker(
-                ClusterInvoker<T> originalInvoker, Invoker<T> filterInvoker, List<FILTER> filters) {
+        public ClusterCallbackRegistrationInvoker(ClusterInvoker<T> originalInvoker, Invoker<T> filterInvoker, List<FILTER> filters) {
             super(filterInvoker, filters);
             this.originalInvoker = originalInvoker;
         }
@@ -306,11 +293,10 @@ public interface FilterChainBuilder {
         }
     }
 
-    @Experimental(
-            "Works for the same purpose as FilterChainNode, replace FilterChainNode with this one when proved stable enough")
+
+    @Experimental("Works for the same purpose as FilterChainNode, replace FilterChainNode with this one when proved stable enough")
     class CopyOfFilterChainNode<T, TYPE extends Invoker<T>, FILTER extends BaseFilter> implements Invoker<T> {
-        private static final ErrorTypeAwareLogger LOGGER =
-                LoggerFactory.getErrorTypeAwareLogger(CopyOfFilterChainNode.class);
+        private static final ErrorTypeAwareLogger LOGGER = LoggerFactory.getErrorTypeAwareLogger(CopyOfFilterChainNode.class);
         TYPE originalInvoker;
         Invoker<T> nextNode;
         FILTER filter;
@@ -344,14 +330,11 @@ public interface FilterChainBuilder {
         public Result invoke(Invocation invocation) throws RpcException {
             Result asyncResult;
             try {
-                InvocationProfilerUtils.enterDetailProfiler(
-                        invocation, () -> "Filter " + filter.getClass().getName() + " invoke.");
+                InvocationProfilerUtils.enterDetailProfiler(invocation, () -> "Filter " + filter.getClass().getName() + " invoke.");
                 asyncResult = filter.invoke(nextNode, invocation);
                 if (!(asyncResult instanceof AsyncRpcResult)) {
-                    String msg =
-                            "The result of filter invocation must be AsyncRpcResult. (If you want to recreate a result, please use AsyncRpcResult.newDefaultAsyncResult.) "
-                                    + "Filter class: " + filter.getClass().getName() + ". Result class: "
-                                    + asyncResult.getClass().getName() + ".";
+                    String msg = "The result of filter invocation must be AsyncRpcResult. (If you want to recreate a result, please use AsyncRpcResult.newDefaultAsyncResult.) " +
+                        "Filter class: " + filter.getClass().getName() + ". Result class: " + asyncResult.getClass().getName() + ".";
                     LOGGER.error(INTERNAL_ERROR, "", "", msg);
                     throw new RpcException(msg);
                 }
@@ -389,14 +372,14 @@ public interface FilterChainBuilder {
         }
     }
 
-    @Experimental(
-            "Works for the same purpose as ClusterFilterChainNode, replace ClusterFilterChainNode with this one when proved stable enough")
+    @Experimental("Works for the same purpose as ClusterFilterChainNode, replace ClusterFilterChainNode with this one when proved stable enough")
     class CopyOfClusterFilterChainNode<T, TYPE extends ClusterInvoker<T>, FILTER extends BaseFilter>
-            extends CopyOfFilterChainNode<T, TYPE, FILTER> implements ClusterInvoker<T> {
+        extends CopyOfFilterChainNode<T, TYPE, FILTER> implements ClusterInvoker<T> {
         public CopyOfClusterFilterChainNode(TYPE originalInvoker, Invoker<T> nextNode, FILTER filter) {
             super(originalInvoker, nextNode, filter);
         }
 
+
         @Override
         public URL getRegistryUrl() {
             return getOriginalInvoker().getRegistryUrl();

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/filter/ProtocolFilterWrapper.java

@@ -62,8 +62,7 @@ public class ProtocolFilterWrapper implements Protocol {
     }
 
     private <T> FilterChainBuilder getFilterChainBuilder(URL url) {
-        return ScopeModelUtil.getExtensionLoader(FilterChainBuilder.class, url.getScopeModel())
-                .getDefaultExtension();
+        return ScopeModelUtil.getExtensionLoader(FilterChainBuilder.class, url.getScopeModel()).getDefaultExtension();
     }
 
     @Override
@@ -84,4 +83,5 @@ public class ProtocolFilterWrapper implements Protocol {
     public List<ProtocolServer> getServers() {
         return protocol.getServers();
     }
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/filter/support/MetricsConsumerFilter.java

@@ -27,11 +27,10 @@ import org.apache.dubbo.rpc.cluster.filter.ClusterFilter;
 
 import static org.apache.dubbo.common.constants.CommonConstants.CONSUMER;
 
-@Activate(
-        group = {CONSUMER},
-        order = Integer.MIN_VALUE + 100)
+@Activate(group = {CONSUMER}, order = Integer.MIN_VALUE + 100)
 public class MetricsConsumerFilter extends MetricsFilter implements ClusterFilter, BaseFilter.Listener {
-    public MetricsConsumerFilter() {}
+    public MetricsConsumerFilter() {
+    }
 
     @Override
     public Result invoke(Invoker<?> invoker, Invocation invocation) throws RpcException {

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/governance/DefaultGovernanceRuleRepositoryImpl.java

@@ -56,4 +56,5 @@ public class DefaultGovernanceRuleRepositoryImpl implements GovernanceRuleReposi
     private DynamicConfiguration getDynamicConfiguration() {
         return moduleModel.modelEnvironment().getDynamicConfiguration().orElse(null);
     }
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/governance/GovernanceRuleRepository.java

@@ -36,6 +36,7 @@ public interface GovernanceRuleRepository {
         addListener(key, DEFAULT_GROUP, listener);
     }
 
+
     /**
      * {@link #removeListener(String, String, ConfigurationListener)}
      *

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/loadbalance/AbstractLoadBalance.java

@@ -47,7 +47,7 @@ public abstract class AbstractLoadBalance implements LoadBalance {
      * @return weight which takes warmup into account
      */
     static int calculateWarmupWeight(int uptime, int warmup, int weight) {
-        int ww = (int) (uptime / ((float) warmup / weight));
+        int ww = (int) ( uptime / ((float) warmup / weight));
         return ww < 1 ? 1 : (Math.min(ww, weight));
     }
 
@@ -64,6 +64,7 @@ public abstract class AbstractLoadBalance implements LoadBalance {
 
     protected abstract <T> Invoker<T> doSelect(List<Invoker<T>> invokers, URL url, Invocation invocation);
 
+
     /**
      * Get the weight of the invoker's invocation which takes warmup time into account
      * if the uptime is within the warmup time, the weight will be reduce proportionally
@@ -93,7 +94,7 @@ public abstract class AbstractLoadBalance implements LoadBalance {
                     }
                     int warmup = invoker.getUrl().getParameter(WARMUP_KEY, DEFAULT_WARMUP);
                     if (uptime > 0 && uptime < warmup) {
-                        weight = calculateWarmupWeight((int) uptime, warmup, weight);
+                        weight = calculateWarmupWeight((int)uptime, warmup, weight);
                     }
                 }
             }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/loadbalance/ConsistentHashLoadBalance.java

@@ -46,7 +46,7 @@ public class ConsistentHashLoadBalance extends AbstractLoadBalance {
      */
     public static final String HASH_ARGUMENTS = "hash.arguments";
 
-    private final ConcurrentMap<String, ConsistentHashSelector<?>> selectors = new ConcurrentHashMap<>();
+    private final ConcurrentMap<String, ConsistentHashSelector<?>> selectors = new ConcurrentHashMap<String, ConsistentHashSelector<?>>();
 
     @SuppressWarnings("unchecked")
     @Override
@@ -74,7 +74,7 @@ public class ConsistentHashLoadBalance extends AbstractLoadBalance {
         private final int[] argumentIndex;
 
         ConsistentHashSelector(List<Invoker<T>> invokers, String methodName, int identityHashCode) {
-            this.virtualInvokers = new TreeMap<>();
+            this.virtualInvokers = new TreeMap<Long, Invoker<T>>();
             this.identityHashCode = identityHashCode;
             URL url = invokers.get(0).getUrl();
             this.replicaNumber = url.getMethodParameter(methodName, HASH_NODES, 160);
@@ -96,12 +96,14 @@ public class ConsistentHashLoadBalance extends AbstractLoadBalance {
         }
 
         public Invoker<T> select(Invocation invocation) {
-            String key = toKey(RpcUtils.getArguments(invocation));
-
-            byte[] digest = Bytes.getMD5(key);
+            byte[] digest = Bytes.getMD5(RpcUtils.getMethodName(invocation));
             return selectForKey(hash(digest, 0));
         }
 
+        private String toKey(Object[] args, boolean isGeneric) {
+            return isGeneric ? toKey((Object[]) args[1]) : toKey(args);
+        }
+
         private String toKey(Object[] args) {
             StringBuilder buf = new StringBuilder();
             for (int i : argumentIndex) {
@@ -122,10 +124,11 @@ public class ConsistentHashLoadBalance extends AbstractLoadBalance {
 
         private long hash(byte[] digest, int number) {
             return (((long) (digest[3 + number * 4] & 0xFF) << 24)
-                            | ((long) (digest[2 + number * 4] & 0xFF) << 16)
-                            | ((long) (digest[1 + number * 4] & 0xFF) << 8)
-                            | (digest[number * 4] & 0xFF))
+                    | ((long) (digest[2 + number * 4] & 0xFF) << 16)
+                    | ((long) (digest[1 + number * 4] & 0xFF) << 8)
+                    | (digest[number * 4] & 0xFF))
                     & 0xFFFFFFFFL;
         }
     }
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/loadbalance/LeastActiveLoadBalance.java

@@ -56,18 +56,17 @@ public class LeastActiveLoadBalance extends AbstractLoadBalance {
         // Every least active invoker has the same weight value?
         boolean sameWeight = true;
 
+
         // Filter out all the least active invokers
         for (int i = 0; i < length; i++) {
             Invoker<T> invoker = invokers.get(i);
             // Get the active number of the invoker
-            int active = RpcStatus.getStatus(invoker.getUrl(), RpcUtils.getMethodName(invocation))
-                    .getActive();
+            int active = RpcStatus.getStatus(invoker.getUrl(), RpcUtils.getMethodName(invocation)).getActive();
             // Get the weight of the invoker's configuration. The default value is 100.
             int afterWarmup = getWeight(invoker, invocation);
             // save for later use
             weights[i] = afterWarmup;
-            // If it is the first invoker or the active number of the invoker is less than the current least active
-            // number
+            // If it is the first invoker or the active number of the invoker is less than the current least active number
             if (leastActive == -1 || active < leastActive) {
                 // Reset the active number of the current invoker to the least active number
                 leastActive = active;

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/loadbalance/RandomLoadBalance.java

@@ -78,8 +78,7 @@ public class RandomLoadBalance extends AbstractLoadBalance {
             }
         }
         if (totalWeight > 0 && !sameWeight) {
-            // If (not every invoker has the same weight & at least one invoker's weight>0), select randomly based on
-            // totalWeight.
+            // If (not every invoker has the same weight & at least one invoker's weight>0), select randomly based on totalWeight.
             int offset = ThreadLocalRandom.current().nextInt(totalWeight);
             // Return an invoker based on the random value.
             if (length <= 4) {
@@ -93,7 +92,7 @@ public class RandomLoadBalance extends AbstractLoadBalance {
                 if (i < 0) {
                     i = -i - 1;
                 } else {
-                    while (weights[i + 1] == offset) {
+                    while (weights[i+1] == offset) {
                         i++;
                     }
                     i++;

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/loadbalance/RoundRobinLoadBalance.java

@@ -37,8 +37,7 @@ public class RoundRobinLoadBalance extends AbstractLoadBalance {
 
     private static final int RECYCLE_PERIOD = 60000;
 
-    private final ConcurrentMap<String, ConcurrentMap<String, WeightedRoundRobin>> methodWeightMap =
-            new ConcurrentHashMap<>();
+    private final ConcurrentMap<String, ConcurrentMap<String, WeightedRoundRobin>> methodWeightMap = new ConcurrentHashMap<>();
 
     protected static class WeightedRoundRobin {
         private int weight;
@@ -92,8 +91,7 @@ public class RoundRobinLoadBalance extends AbstractLoadBalance {
     @Override
     protected <T> Invoker<T> doSelect(List<Invoker<T>> invokers, URL url, Invocation invocation) {
         String key = invokers.get(0).getUrl().getServiceKey() + "." + RpcUtils.getMethodName(invocation);
-        ConcurrentMap<String, WeightedRoundRobin> map =
-                ConcurrentHashMapUtils.computeIfAbsent(methodWeightMap, key, k -> new ConcurrentHashMap<>());
+        ConcurrentMap<String, WeightedRoundRobin> map = ConcurrentHashMapUtils.computeIfAbsent(methodWeightMap, key, k -> new ConcurrentHashMap<>());
         int totalWeight = 0;
         long maxCurrent = Long.MIN_VALUE;
         long now = System.currentTimeMillis();
@@ -109,7 +107,7 @@ public class RoundRobinLoadBalance extends AbstractLoadBalance {
             });
 
             if (weight != weightedRoundRobin.getWeight()) {
-                // weight changed
+                //weight changed
                 weightedRoundRobin.setWeight(weight);
             }
             long cur = weightedRoundRobin.increaseCurrent();
@@ -131,4 +129,5 @@ public class RoundRobinLoadBalance extends AbstractLoadBalance {
         // should not happen here
         return invokers.get(0);
     }
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/loadbalance/ShortestResponseLoadBalance.java

@@ -59,15 +59,9 @@ public class ShortestResponseLoadBalance extends AbstractLoadBalance implements
 
     @Override
     public void setApplicationModel(ApplicationModel applicationModel) {
-        slidePeriod = applicationModel
-                .modelEnvironment()
-                .getConfiguration()
-                .getInt(Constants.SHORTEST_RESPONSE_SLIDE_PERIOD, 30_000);
-        executorService = applicationModel
-                .getFrameworkModel()
-                .getBeanFactory()
-                .getBean(FrameworkExecutorRepository.class)
-                .getSharedExecutor();
+        slidePeriod = applicationModel.modelEnvironment().getConfiguration().getInt(Constants.SHORTEST_RESPONSE_SLIDE_PERIOD, 30_000);
+        executorService = applicationModel.getFrameworkModel().getBeanFactory()
+            .getBean(FrameworkExecutorRepository.class).getSharedExecutor();
     }
 
     protected static class SlideWindowData {
@@ -124,11 +118,9 @@ public class ShortestResponseLoadBalance extends AbstractLoadBalance implements
         for (int i = 0; i < length; i++) {
             Invoker<T> invoker = invokers.get(i);
             RpcStatus rpcStatus = RpcStatus.getStatus(invoker.getUrl(), RpcUtils.getMethodName(invocation));
-            SlideWindowData slideWindowData =
-                    ConcurrentHashMapUtils.computeIfAbsent(methodMap, rpcStatus, SlideWindowData::new);
+            SlideWindowData slideWindowData = ConcurrentHashMapUtils.computeIfAbsent(methodMap, rpcStatus, SlideWindowData::new);
 
-            // Calculate the estimated response time from the product of active connections and succeeded average
-            // elapsed time.
+            // Calculate the estimated response time from the product of active connections and succeeded average elapsed time.
             long estimateResponse = slideWindowData.getEstimateResponse();
             int afterWarmup = getWeight(invoker, invocation);
             weights[i] = afterWarmup;
@@ -143,15 +135,16 @@ public class ShortestResponseLoadBalance extends AbstractLoadBalance implements
             } else if (estimateResponse == shortestResponse) {
                 shortestIndexes[shortestCount++] = i;
                 totalWeight += afterWarmup;
-                if (sameWeight && i > 0 && afterWarmup != firstWeight) {
+                if (sameWeight && i > 0
+                    && afterWarmup != firstWeight) {
                     sameWeight = false;
                 }
             }
         }
 
         if (System.currentTimeMillis() - lastUpdateTime > slidePeriod
-                && onResetSlideWindow.compareAndSet(false, true)) {
-            // reset slideWindowData in async way
+            && onResetSlideWindow.compareAndSet(false, true)) {
+            //reset slideWindowData in async way
             executorService.execute(() -> {
                 methodMap.values().forEach(SlideWindowData::reset);
                 lastUpdateTime = System.currentTimeMillis();

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/router/AbstractRouter.java

@@ -28,13 +28,12 @@ public abstract class AbstractRouter implements Router {
     private GovernanceRuleRepository ruleRepository;
 
     public AbstractRouter(URL url) {
-        this.ruleRepository = url.getOrDefaultModuleModel()
-                .getExtensionLoader(GovernanceRuleRepository.class)
-                .getDefaultExtension();
+        this.ruleRepository = url.getOrDefaultModuleModel().getExtensionLoader(GovernanceRuleRepository.class).getDefaultExtension();
         this.url = url;
     }
 
-    public AbstractRouter() {}
+    public AbstractRouter() {
+    }
 
     @Override
     public URL getUrl() {
@@ -68,7 +67,8 @@ public abstract class AbstractRouter implements Router {
         this.priority = priority;
     }
 
-    public GovernanceRuleRepository getRuleRepository() {
+    public GovernanceRuleRepository getRuleRepository(){
         return this.ruleRepository;
     }
+
 }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/router/RouterSnapshotFilter.java

@@ -34,7 +34,7 @@ import static org.apache.dubbo.common.constants.CommonConstants.CONSUMER;
 public class RouterSnapshotFilter implements ClusterFilter, BaseFilter.Listener {
 
     private final RouterSnapshotSwitcher switcher;
-    private static final Logger logger = LoggerFactory.getLogger(RouterSnapshotFilter.class);
+    private final static Logger logger = LoggerFactory.getLogger(RouterSnapshotFilter.class);
 
     public RouterSnapshotFilter(FrameworkModel frameworkModel) {
         this.switcher = frameworkModel.getBeanFactory().getBean(RouterSnapshotSwitcher.class);

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/router/RouterSnapshotNode.java

@@ -114,55 +114,43 @@ public class RouterSnapshotNode<T> {
 
     public String toString(int level) {
         StringBuilder stringBuilder = new StringBuilder();
-        stringBuilder
-                .append("[ ")
-                .append(name)
-                .append(' ')
-                .append("(Input: ")
-                .append(beforeSize)
-                .append(") ")
-                .append("(Current Node Output: ")
-                .append(nodeOutputSize)
-                .append(") ")
-                .append("(Chain Node Output: ")
-                .append(chainOutputSize)
-                .append(')')
-                .append(routerMessage == null ? "" : " Router message: ")
-                .append(routerMessage == null ? "" : routerMessage)
-                .append(" ] ");
+        stringBuilder.append("[ ")
+            .append(name)
+            .append(' ')
+            .append("(Input: ").append(beforeSize).append(") ")
+            .append("(Current Node Output: ").append(nodeOutputSize).append(") ")
+            .append("(Chain Node Output: ").append(chainOutputSize).append(')')
+            .append(routerMessage == null ? "" : " Router message: ")
+            .append(routerMessage == null ? "" : routerMessage)
+            .append(" ] ");
         if (level == 1) {
-            stringBuilder
-                    .append("Input: ")
-                    .append(
-                            CollectionUtils.isEmpty(inputInvokers)
-                                    ? "Empty"
-                                    : inputInvokers.subList(0, Math.min(5, inputInvokers.size())).stream()
-                                            .map(Invoker::getUrl)
-                                            .map(URL::getAddress)
-                                            .collect(Collectors.joining(",")))
-                    .append(" -> ");
+            stringBuilder.append("Input: ")
+                .append(CollectionUtils.isEmpty(inputInvokers) ? "Empty" :
+                        inputInvokers.subList(0, Math.min(5, inputInvokers.size()))
+                            .stream()
+                            .map(Invoker::getUrl)
+                            .map(URL::getAddress)
+                            .collect(Collectors.joining(",")))
+                .append(" -> ");
 
-            stringBuilder
-                    .append("Chain Node Output: ")
-                    .append(
-                            CollectionUtils.isEmpty(chainOutputInvokers)
-                                    ? "Empty"
-                                    : chainOutputInvokers.subList(0, Math.min(5, chainOutputInvokers.size())).stream()
-                                            .map(Invoker::getUrl)
-                                            .map(URL::getAddress)
-                                            .collect(Collectors.joining(",")));
+            stringBuilder.append("Chain Node Output: ")
+                .append(CollectionUtils.isEmpty(chainOutputInvokers) ? "Empty" :
+                    chainOutputInvokers.subList(0, Math.min(5, chainOutputInvokers.size()))
+                        .stream()
+                        .map(Invoker::getUrl)
+                        .map(URL::getAddress)
+                        .collect(Collectors.joining(",")));
         } else {
-            stringBuilder
-                    .append("Current Node Output: ")
-                    .append(
-                            CollectionUtils.isEmpty(nodeOutputInvokers)
-                                    ? "Empty"
-                                    : nodeOutputInvokers.subList(0, Math.min(5, nodeOutputInvokers.size())).stream()
-                                            .map(Invoker::getUrl)
-                                            .map(URL::getAddress)
-                                            .collect(Collectors.joining(",")));
+            stringBuilder.append("Current Node Output: ")
+                .append(CollectionUtils.isEmpty(nodeOutputInvokers) ? "Empty" :
+                    nodeOutputInvokers.subList(0, Math.min(5, nodeOutputInvokers.size()))
+                        .stream()
+                        .map(Invoker::getUrl)
+                        .map(URL::getAddress)
+                        .collect(Collectors.joining(",")));
         }
 
+
         if (nodeOutputInvokers != null && nodeOutputInvokers.size() > 5) {
             stringBuilder.append("...");
         }

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/router/RouterSnapshotSwitcher.java

@@ -26,7 +26,7 @@ public class RouterSnapshotSwitcher {
     private volatile boolean enable;
     private final Set<String> enabledService = new ConcurrentHashSet<>();
 
-    private static final int MAX_LENGTH = 1 << 5; // 2 ^ 5 = 31
+    private final static int MAX_LENGTH = 1 << 5; // 2 ^ 5 = 31
 
     private final AtomicInteger offset = new AtomicInteger(0);
     private volatile String[] recentSnapshot = new String[MAX_LENGTH];

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/router/mesh/rule/virtualservice/match/AddressMatch.java

@@ -62,14 +62,7 @@ public class AddressMatch {
             try {
                 return input.equals(getCird()) || matchIpExpression(getCird(), input);
             } catch (UnknownHostException e) {
-                logger.error(
-                        CLUSTER_FAILED_EXEC_CONDITION_ROUTER,
-                        "Executing routing rule match expression error.",
-                        "",
-                        String.format(
-                                "Error trying to match cird formatted address %s with input %s in AddressMatch.",
-                                getCird(), input),
-                        e);
+                logger.error(CLUSTER_FAILED_EXEC_CONDITION_ROUTER, "Executing routing rule match expression error.", "", String.format("Error trying to match cird formatted address %s with input %s in AddressMatch.", getCird(), input), e);
             }
         }
         if (getWildcard() != null && input != null) {

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/router/mesh/rule/virtualservice/match/BoolMatch.java

@@ -14,8 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.apache.dubbo.rpc.cluster.router.mesh.rule.virtualservice.match;
 
+
 public class BoolMatch {
     private Boolean exact;
 
@@ -27,8 +29,8 @@ public class BoolMatch {
         this.exact = exact;
     }
 
-    public boolean isMatch(boolean input) {
-        if (exact != null) {
+    public boolean isMatch(boolean input){
+        if (exact != null){
             return input == exact;
         }
         return false;

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/router/mesh/rule/virtualservice/match/DoubleMatch.java

@@ -14,8 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.apache.dubbo.rpc.cluster.router.mesh.rule.virtualservice.match;
 
+
 public class DoubleMatch {
     private Double exact;
     private DoubleRangeMatch range;
@@ -45,6 +47,7 @@ public class DoubleMatch {
         this.mod = mod;
     }
 
+
     public boolean isMatch(Double input) {
         if (exact != null && mod == null) {
             return input.equals(exact);

dubbo-cluster/src/main/java/org/apache/dubbo/rpc/cluster/router/mesh/rule/virtualservice/match/DoubleRangeMatch.java

@@ -14,8 +14,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package org.apache.dubbo.rpc.cluster.router.mesh.rule.virtualservice.match;
 
+
 public class DoubleRangeMatch {
     private Double start;
     private Double end;
@@ -36,6 +38,7 @@ public class DoubleRangeMatch {
         this.end = end;
     }
 
+
     public boolean isMatch(Double input) {
         if (start != null && end != null) {
             return input.compareTo(start) >= 0 && input.compareTo(end) < 0;