diff --git a/asciidoc/templates/extensions/src/org/apache/ivy/asciidoc/JiraMacro.java b/asciidoc/templates/extensions/src/org/apache/ivy/asciidoc/JiraMacro.java
index d6c13068..8346ec73 100644
--- a/asciidoc/templates/extensions/src/org/apache/ivy/asciidoc/JiraMacro.java
+++ b/asciidoc/templates/extensions/src/org/apache/ivy/asciidoc/JiraMacro.java
@@ -20,21 +20,17 @@ package org.apache.ivy.asciidoc;
 import java.util.Map;
 import java.util.HashMap;
 
-import org.asciidoctor.ast.AbstractBlock;
+import org.asciidoctor.ast.ContentNode;
 import org.asciidoctor.extension.InlineMacroProcessor;
 
 public class JiraMacro extends InlineMacroProcessor {
 
-    public JiraMacro(String macroName, Map<String, Object> config) {
-        super(macroName, config);
-    }
-
     @Override
-    public String process(AbstractBlock parent, String target, Map<String, Object> attributes) {
+    public String process(ContentNode parent, String target, Map<String, Object> attributes) {
         Map<String, Object> options = new HashMap<String, Object>();
         options.put("type", ":link");
         options.put("target", "https://issues.apache.org/jira/browse/" + target);
-        return createInline(parent, "anchor", target, attributes, options).convert();
+        return createPhraseNode(parent, "anchor", target, attributes, options).convert();
     }
 
 }
diff --git a/build-release.xml b/build-release.xml
index f2f39f6b..7bd37a41 100644
--- a/build-release.xml
+++ b/build-release.xml
@@ -168,7 +168,7 @@
     </target>
 
     <target name="init-asciidoctor-extensions" depends="init-ivy" unless="skip.doc">
-        <ivy:cachepath pathid="asciidoctorj.path" organisation="org.asciidoctor" module="asciidoctorj" revision="1.5.7" conf="default" inline="true"/>
+        <ivy:cachepath pathid="asciidoctorj.path" organisation="org.asciidoctor" module="asciidoctorj" revision="1.6.2" conf="default" inline="true"/>
         <mkdir dir="${build.dir}/asciidoc-extensions/classes"/>
         <javac srcdir="${doc.src.dir}/templates/extensions/src" destdir="${build.dir}/asciidoc-extensions/classes"
                debug="true" includeantruntime="no" classpathref="asciidoctorj.path"/>
@@ -182,7 +182,7 @@
     <target name="init-asciidoctor" depends="init-asciidoctor-extensions" unless="skip.doc">
         <mkdir dir="${build.dir}/asciidoc-lib/jars"/>
         <mkdir dir="${build.dir}/asciidoc-lib/classes"/>
-        <ivy:retrieve organisation="org.asciidoctor" module="asciidoctor-ant" revision="1.5.5" conf="default" inline="true" pattern="${build.dir}/asciidoc-lib/jars/[artifact].[ext]"/>
+        <ivy:retrieve organisation="org.asciidoctor" module="asciidoctor-ant" revision="1.6.2" conf="default" inline="true" pattern="${build.dir}/asciidoc-lib/jars/[artifact].[ext]"/>
         <unzip src="${build.dir}/asciidoc-lib/jars/asciidoctor-ant.jar" dest="${build.dir}/asciidoc-lib/classes"/>
         <taskdef uri="antlib:org.asciidoctor.ant" resource="org/asciidoctor/ant/antlib.xml">
             <classpath>
diff --git a/build.xml b/build.xml
index b11a1a07..59b9192f 100644
--- a/build.xml
+++ b/build.xml
@@ -526,7 +526,7 @@
     </target>
 
     <target name="init-japicmp" depends="jar" unless="skip.test">
-        <ivy:cachepath organisation="com.github.siom79.japicmp" module="japicmp-ant-task" revision="0.13.0"
+        <ivy:cachepath organisation="com.github.siom79.japicmp" module="japicmp-ant-task" revision="0.14.1"
                        inline="true" conf="default" pathid="japicmp.classpath" log="download-only"/>
         <taskdef uri="antlib:japicmp.ant" resource="japicmp/ant/antlib.xml"
                  classpathref="japicmp.classpath"/>
@@ -643,26 +643,9 @@
     </target>
 
     <target name="init-findbugs" unless="findbugs.home">
-        <!-- Findbugs: Getting Findbugs requires unlimited strength crypto policy -->
-        <property name="findbugs.version"
-                  value="3.0.1"
+        <property name="spotbugs.version"
+                  value="3.1.12"
                   description="Version of Findbugs to use"/>
-        <property name="findbugs.download.name"
-                  value="findbugs-${findbugs.version}"
-                  description="Name of the download file without suffix. Also the internal root directory of the ZIP."/>
-        <property name="findbugs.download.file"
-                  value="${findbugs.download.name}.zip"
-                  description="The filename of the ZIP."/>
-        <property name="findbugs.download.url"
-                  value="https://downloads.sourceforge.net/project/findbugs/findbugs/${findbugs.version}/findbugs-${findbugs.version}.zip"
-                  description="The download adress at a mirror of Sourceforge."/>
-        <property name="findbugs.download.to"
-                  value="${build.dir}/.downloads"
-                  description="Where to store the download and 'install' Findbugs."/>
-        <available property="findbugs.home"
-                   value="${findbugs.download.to}/${findbugs.download.name}"
-                   file="${findbugs.download.to}/${findbugs.download.name}/lib/findbugs.jar"
-                   description="Check if Findbugs is already installed."/>
 
         <!-- Findbugs: Running Findbugs -->
         <property name="findbugs.reportdir"
@@ -677,37 +660,32 @@
         <property name="findbugs.jvmargs"
                   value="-Xms128m -Xmx512m"
                   description="JVMArgs for invoking Findbugs"/>
-
-        <mkdir dir="${findbugs.download.to}"/>
-        <get src="${findbugs.download.url}" dest="${findbugs.download.to}/${findbugs.download.file}"
-             usetimestamp="true" skipexisting="true"/>
-        <unzip src="${findbugs.download.to}/${findbugs.download.file}" dest="${findbugs.download.to}"/>
-        <property name="findbugs.home" location="${findbugs.download.to}/${findbugs.download.name}"/>
     </target>
 
-    <target name="findbugs" description="checks Ivy codebase with Findbugs" depends="init-findbugs,compile-core" xmlns:fb="http://findbugs.sourceforge.net/">
-        <!-- Load the Findbugs AntTasks -->
-        <path id="findbugs.real.classpath">
-            <fileset dir="${findbugs.home}/lib" includes="*.jar"/>
-        </path>
-        <taskdef uri="http://findbugs.sourceforge.net/" resource="edu/umd/cs/findbugs/anttask/tasks.properties" classpathref="findbugs.real.classpath"/>
+    <target name="findbugs" description="checks Ivy codebase with Spotbugs" depends="init-findbugs,compile-core"
+            xmlns:fb="http://findbugs.sourceforge.net/">
+        <ivy:cachepath organisation="com.github.spotbugs" module="spotbugs-ant" revision="${spotbugs.version}"
+                       inline="true" conf="default" pathid="spotbugs.classpath"/>
+        <!-- Load the SpotBugs AntTasks -->
+        <taskdef uri="http://findbugs.sourceforge.net/" resource="edu/umd/cs/findbugs/anttask/tasks.properties"
+                 classpathref="spotbugs.classpath"/>
 
-        <!-- Start Findbugs -->
+        <!-- Start SpotBugs -->
         <mkdir dir="${findbugs.reportdir}"/>
-        <fb:findbugs home="${findbugs.home}"
-                     classpathref="findbugs.real.classpath"
+        <fb:spotbugs classpathref="spotbugs.classpath"
                      output="xml:withMessages"
                      outputFile="${findbugs.reportdir}/${findbugs.raw}"
                      jvmargs="${findbugs.jvmargs}"
                      projectName="${ant.project.name} ${target.ivy.version}">
             <class location="${core.classes.build.dir}"/>
             <sourcePath path="${src.dir}"/>
-        </fb:findbugs>
+            <auxClasspath refid="lib.classpath"/>
+        </fb:spotbugs>
 
         <!-- Generate (human) readable output -->
         <xslt basedir="${findbugs.reportdir}" includes="${findbugs.raw}" destdir="${findbugs.reportdir}">
             <style>
-                <javaresource name="${findbugs.xsl}" classpathref="findbugs.real.classpath"/>
+                <javaresource name="${findbugs.xsl}" classpathref="spotbugs.classpath"/>
             </style>
         </xslt>
     </target>
diff --git a/src/etc/checkstyle/checkstyle-config b/src/etc/checkstyle/checkstyle-config
index e797e5cb..85aeb1e5 100644
--- a/src/etc/checkstyle/checkstyle-config
+++ b/src/etc/checkstyle/checkstyle-config
@@ -28,6 +28,16 @@
   <!-- Items moved out of TreeWalker for new versions of Checkstyle -->
   <module name="FileLength"/>
   <module name="FileTabCharacter"/>
+  <module name="LineLength">
+    <property name="max" value="100"/>
+    <property name="ignorePattern" value="^ *\* *[^ ]+$"/>
+    <property name="tabWidth" value="4"/>
+  </module>
+
+  <module name="RegexpSingleline">
+    <!-- \s matches whitespace character, $ matches end of line. -->
+    <property name="format" value="\s+$"/>
+  </module>
 
   <module name="TreeWalker">
     <!-- Javadoc requirements -->
@@ -37,7 +47,7 @@
     <!--
     <module name="JavadocMethod">
       <property name="scope" value="protected"/>
-      <property name="allowUndeclaredRTE" value="true"/>
+      <!-- <property name="allowUndeclaredRTE" value="true"/> -->
     </module>
     <module name="JavadocVariable">
        <property name="scope" value="public"/>
@@ -62,13 +72,6 @@
     <module name="UnusedImports"/>
 
     <!-- size limits -->
-    <!--
-    <module name="LineLength">
-      <property name="max" value="100"/>
-      <property name="ignorePattern" value="^ *\* *[^ ]+$"/>
-      <property name="tabWidth" value="4"/>
-    </module>
-    -->
     <module name="MethodLength"/>
     <module name="ParameterNumber"/>
 
@@ -134,11 +137,11 @@
       <property name="message" value="Line has trailing spaces."/>
     </module>
     -->
-  </module>
-
-  <module name="RegexpSingleline">
-    <!-- \s matches whitespace character, $ matches end of line. -->
-    <property name="format" value="\s+$"/>
+    <module name="SuppressionCommentFilter">
+      <property name="offCommentFormat" value="CheckStyle\:([\w\|]+) *OFF"/>
+      <property name="onCommentFormat" value="CheckStyle\:([\w\|]+) *ON"/>
+      <property name="checkFormat" value="$1"/>
+    </module>
   </module>
 
   <!--
@@ -152,5 +155,4 @@
   <module name="SuppressionFilter">
     <property name="file" value="${checkstyle.src.dir}/checkstyle-suppress.xml"/>
   </module>
-
 </module>