http to central not supported anymore, switch to https
diff --git a/pom.xml b/pom.xml
index 4ac6f93..9dad6e9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -70,7 +70,8 @@
     <mavenVersion>3.0</mavenVersion>
     <doxiaVersion>1.7</doxiaVersion>
     <doxia-sitetoolsVersion>1.7.4</doxia-sitetoolsVersion>
-    <wagonVersion>1.0-beta-6</wagonVersion>
+    <wagonVersion>2.4</wagonVersion>
+    <sonatypeAetherVersion>1.13.1</sonatypeAetherVersion>
     <!-- for ITs -->
     <sitePluginVersion>3.3</sitePluginVersion>
     <projectInfoReportsPluginVersion>2.7</projectInfoReportsPluginVersion>
@@ -124,6 +125,36 @@
     </contributor>
   </contributors>
 
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>org.sonatype.aether</groupId>
+        <artifactId>aether-api</artifactId>
+        <version>${sonatypeAetherVersion}</version>
+      </dependency>
+      <dependency>
+        <groupId>org.sonatype.aether</groupId>
+        <artifactId>aether-connector</artifactId>
+        <version>${sonatypeAetherVersion}</version>
+      </dependency>
+      <dependency>
+        <groupId>org.sonatype.aether</groupId>
+        <artifactId>aether-connector-wagon</artifactId>
+        <version>${sonatypeAetherVersion}</version>
+      </dependency>
+      <dependency>
+        <groupId>org.sonatype.aether</groupId>
+        <artifactId>aether-impl</artifactId>
+        <version>${sonatypeAetherVersion}</version>
+      </dependency>
+      <dependency>
+        <groupId>org.sonatype.aether</groupId>
+        <artifactId>aether-util</artifactId>
+        <version>${sonatypeAetherVersion}</version>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+  
   <dependencies>
     <dependency> <!-- @TODO remove!! -->
       <groupId>org.apache.maven</groupId>
@@ -316,13 +347,13 @@
     <dependency>
       <groupId>org.sonatype.aether</groupId>
       <artifactId>aether-connector-wagon</artifactId>
-      <version>1.7</version>
       <scope>test</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.maven.wagon</groupId>
       <artifactId>wagon-http</artifactId>
-      <version>1.0-beta-6</version>
+      <version>${wagonVersion}</version>
+      <classifier>shaded</classifier>
       <scope>test</scope>
     </dependency>
   </dependencies>
@@ -394,15 +425,10 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-surefire-plugin</artifactId>
         <configuration>
-          <systemProperties>
-            <property>
-              <name>maven.home</name>
-              <value>${maven.home}</value>
-            </property>
-          </systemProperties>
-          <environmentVariables>
-            <JENKINS_MAVEN_AGENT_DISABLED>true</JENKINS_MAVEN_AGENT_DISABLED>
-          </environmentVariables>
+          <systemPropertyVariables>
+            <maven.home>${maven.home}</maven.home>
+            <https.protocols>${https.protocols}</https.protocols>
+          </systemPropertyVariables> 
         </configuration>
       </plugin>
       <plugin>
diff --git a/src/main/java/org/apache/maven/plugins/javadoc/AbstractFixJavadocMojo.java b/src/main/java/org/apache/maven/plugins/javadoc/AbstractFixJavadocMojo.java
index 95e0863..fb18bf5 100644
--- a/src/main/java/org/apache/maven/plugins/javadoc/AbstractFixJavadocMojo.java
+++ b/src/main/java/org/apache/maven/plugins/javadoc/AbstractFixJavadocMojo.java
@@ -43,6 +43,7 @@
 import org.apache.maven.artifact.Artifact;

 import org.apache.maven.artifact.DependencyResolutionRequiredException;

 import org.apache.maven.artifact.repository.ArtifactRepository;

+import org.apache.maven.execution.MavenSession;

 import org.apache.maven.plugin.AbstractMojo;

 import org.apache.maven.plugin.MojoExecutionException;

 import org.apache.maven.plugin.MojoFailureException;

@@ -377,6 +378,9 @@
     @Parameter( defaultValue = "${project}", readonly = true, required = true )

     private MavenProject project;

 

+    @Parameter ( defaultValue = "${session}", readonly = true, required = true )

+    private MavenSession session;

+

     /**

      * The current user system settings for use in Maven.

      */

@@ -483,6 +487,11 @@
     // protected methods

     // ----------------------------------------------------------------------

 

+    protected final MavenProject getProject()

+    {

+        return project;

+    }    

+

     /**

      * @param p not null maven project.

      * @return the artifact type.

@@ -697,8 +706,10 @@
         invokerDir.mkdirs();

         File invokerLogFile = FileUtils.createTempFile( "clirr-maven-plugin", ".txt", invokerDir );

         new File( project.getBuild().getDirectory(), "invoker-clirr-maven-plugin.txt" );

+

         JavadocUtil.invokeMaven( getLog(), new File( localRepository.getBasedir() ), project.getFile(),

-                                 Collections.singletonList( clirrGoal ), properties, invokerLogFile );

+                                 Collections.singletonList( clirrGoal ), properties, invokerLogFile,

+                                 session.getRequest().getGlobalSettingsFile() );

 

         try

         {

diff --git a/src/main/java/org/apache/maven/plugins/javadoc/AbstractJavadocMojo.java b/src/main/java/org/apache/maven/plugins/javadoc/AbstractJavadocMojo.java
index 2b6a590..c043531 100644
--- a/src/main/java/org/apache/maven/plugins/javadoc/AbstractJavadocMojo.java
+++ b/src/main/java/org/apache/maven/plugins/javadoc/AbstractJavadocMojo.java
@@ -6186,7 +6186,8 @@
                 try

                 {

                     JavadocUtil.invokeMaven( getLog(), new File( localRepository.getBasedir() ), p.getFile(),

-                                             Collections.singletonList( javadocGoal ), null, invokerLogFile );

+                                             Collections.singletonList( javadocGoal ), null, invokerLogFile,

+                                             session.getRequest().getGlobalSettingsFile() );

                 }

                 catch ( MavenInvocationException e )

                 {

diff --git a/src/main/java/org/apache/maven/plugins/javadoc/JavadocUtil.java b/src/main/java/org/apache/maven/plugins/javadoc/JavadocUtil.java
index 997c5ed..eec7639 100644
--- a/src/main/java/org/apache/maven/plugins/javadoc/JavadocUtil.java
+++ b/src/main/java/org/apache/maven/plugins/javadoc/JavadocUtil.java
@@ -781,11 +781,12 @@
      * @param goals a not null goals list.

      * @param properties the properties for the goals, could be null.

      * @param invokerLog the log file where the invoker will be written, if null using <code>System.out</code>.

+     * @param globalSettingsFile reference to settings file, could be null.

      * @throws MavenInvocationException if any

      * @since 2.6

      */

     protected static void invokeMaven( Log log, File localRepositoryDir, File projectFile, List<String> goals,

-                                       Properties properties, File invokerLog )

+                                       Properties properties, File invokerLog, File globalSettingsFile )

         throws MavenInvocationException

     {

         if ( projectFile == null )

@@ -829,6 +830,7 @@
         InvocationRequest request = new DefaultInvocationRequest();

         request.setBaseDirectory( projectFile.getParentFile() );

         request.setPomFile( projectFile );

+        request.setGlobalSettingsFile( globalSettingsFile );

         request.setBatchMode( true );

         if ( log != null )

         {

diff --git a/src/test/java/org/apache/maven/plugins/javadoc/FixJavadocMojoTest.java b/src/test/java/org/apache/maven/plugins/javadoc/FixJavadocMojoTest.java
index e4fc2be..1db9339 100644
--- a/src/test/java/org/apache/maven/plugins/javadoc/FixJavadocMojoTest.java
+++ b/src/test/java/org/apache/maven/plugins/javadoc/FixJavadocMojoTest.java
@@ -27,6 +27,7 @@
 import java.util.List;

 import java.util.Properties;

 

+import org.apache.maven.execution.MavenSession;

 import org.apache.maven.plugin.logging.Log;

 import org.apache.maven.plugin.testing.AbstractMojoTestCase;

 import org.apache.maven.plugin.testing.stubs.MavenProjectStub;

@@ -614,9 +615,15 @@
 

         FixJavadocMojo mojo = (FixJavadocMojo) lookupMojo( "fix", testPom );

         assertNotNull( mojo );

+        

+        MavenSession session = newMavenSession( mojo.getProject() );

+        // Ensure remote repo connection uses SSL

+        File globalSettingsFile = new File( getBasedir(), "target/test-classes/unit/settings.xml" );

+        session.getRequest().setGlobalSettingsFile( globalSettingsFile );

+        setVariableValueToObject( mojo, "session", session );

 

         // compile the test project

-        invokeCompileGoal( testPom, mojo.getLog() );

+        invokeCompileGoal( testPom, globalSettingsFile, mojo.getLog() );

         assertTrue( new File( testPomBasedir, "target/classes" ).exists() );

 

         mojo.execute();

@@ -639,7 +646,7 @@
      * @param log not null

      * @throws MavenInvocationException if any

      */

-    private void invokeCompileGoal( File testPom, Log log )

+    private void invokeCompileGoal( File testPom, File globalSettingsFile, Log log )

         throws Exception

     {

         List<String> goals = new ArrayList<>();

@@ -670,7 +677,7 @@
         }

         

         JavadocUtil.invokeMaven( log, new File( getBasedir(), "target/local-repo" ), testPom, goals, properties,

-                                 invokerLogFile );

+                                 invokerLogFile, globalSettingsFile );

     }

 

     // ----------------------------------------------------------------------

diff --git a/src/test/resources/unit/settings.xml b/src/test/resources/unit/settings.xml
new file mode 100644
index 0000000..bfadfb4
--- /dev/null
+++ b/src/test/resources/unit/settings.xml
@@ -0,0 +1,30 @@
+<?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.
+-->
+
+<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
+  <mirrors>
+    <mirror>
+      <id>httpsCentral</id>
+      <url>https://repo.maven.apache.org/maven2</url>
+      <mirrorOf>central</mirrorOf>
+    </mirror>
+  </mirrors>
+</settings>