diff --git a/mindspore/lite/java/build_aar.sh b/mindspore/lite/java/build_aar.sh
index 537fe6d20db..fa2dbf1b7db 100644
--- a/mindspore/lite/java/build_aar.sh
+++ b/mindspore/lite/java/build_aar.sh
@@ -87,9 +87,16 @@ build_aar() {
     cd ${BASE_PATH}/java
     rm -rf .gradle build gradle gradlew gradlew.bat build app/build
 
-    gradle init
-    gradle wrapper
-    ./gradlew build
+    gradle init -PLITE_VERSION=${VERSION_STR}-SNAPSHOT
+    gradle wrapper -PLITE_VERSION=${VERSION_STR}-SNAPSHOT
+    ./gradlew build -PLITE_VERSION=${VERSION_STR}-SNAPSHOT
+
+    gradle publish -PLITE_VERSION=${VERSION_STR}-SNAPSHOT
+
+    cd ${BASE_PATH}/java/app/build
+    zip -r mindspore-lite-maven-${VERSION_STR}.zip mindspore
+
+    cp mindspore-lite-maven-${VERSION_STR}.zip ${TOP_PATH}/output/
 }
 
 copy_output() {
diff --git a/mindspore/lite/java/java/app/build.gradle b/mindspore/lite/java/java/app/build.gradle
index a3446ab0cba..4e7df058426 100644
--- a/mindspore/lite/java/java/app/build.gradle
+++ b/mindspore/lite/java/java/app/build.gradle
@@ -1,4 +1,5 @@
 apply plugin: 'com.android.library'
+apply plugin: 'maven-publish'
 
 android {
     compileSdkVersion 30
@@ -47,3 +48,20 @@ dependencies {
     implementation fileTree(dir: "libs", include: ["*.jar"])
     testImplementation 'junit:junit:4.12'
 }
+
+publishing {
+    repositories {
+        maven {
+            url uri("build")
+        }
+    }
+    publications {
+        maven(MavenPublication) {
+            groupId = 'mindspore'
+            artifactId = 'mindspore-lite'
+            version = LITE_VERSION
+            String path = project.buildDir.path + File.separator + "outputs" + File.separator + "aar" + File.separator + "mindspore-lite.aar";
+            artifact(path)
+        }
+    }
+}
\ No newline at end of file
diff --git a/mindspore/lite/java/java/app/src/main/native/CMakeLists.txt b/mindspore/lite/java/java/app/src/main/native/CMakeLists.txt
index 20ac7f6e794..eb94df944e7 100644
--- a/mindspore/lite/java/java/app/src/main/native/CMakeLists.txt
+++ b/mindspore/lite/java/java/app/src/main/native/CMakeLists.txt
@@ -6,6 +6,7 @@ set(MS_VERSION_MINOR 7)
 set(MS_VERSION_REVISION 0)
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DMS_VERSION_MAJOR=${MS_VERSION_MAJOR} -DMS_VERSION_MINOR=${MS_VERSION_MINOR} -DMS_VERSION_REVISION=${MS_VERSION_REVISION}")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DMS_VERSION_MAJOR=${MS_VERSION_MAJOR} -DMS_VERSION_MINOR=${MS_VERSION_MINOR} -DMS_VERSION_REVISION=${MS_VERSION_REVISION}")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17")
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../)  ## lite include
diff --git a/mindspore/lite/src/kernel_registry.cc b/mindspore/lite/src/kernel_registry.cc
index 93e1077db4f..f319f8cfd46 100644
--- a/mindspore/lite/src/kernel_registry.cc
+++ b/mindspore/lite/src/kernel_registry.cc
@@ -116,8 +116,11 @@ kernel::LiteKernel *KernelRegistry::GetKernel(const std::vector<Tensor *> &in_te
   auto creator = GetCreator(key);
   if (creator != nullptr) {
     auto kernel = creator(in_tensors, out_tensors, parameter, ctx, key, primitive);
-    return kernel;
+    if (kernel != nullptr) {
+      return kernel;
+    }
   }
+  free(parameter);
   return nullptr;
 }