not sure the unified source directory structure addresses this issue.

 Properties

 maven.user.config.dir (system,default=${user.home}/.m2)
 maven.home            (system,user,default=${user.home}/m2)
 maven.repo.local      (system,user,default=${maven.user.config.dir}/repository)

 We need to define what happens in the when things are not setup correctly

    <repository>
      <id>repo1</id>
      <name>Maven Central Repository</name>
      <url>scp://repo1.maven.org/home/projects/maven/repository-staging/to-ibiblio/maven2</url>
    </repository>
    <snapshotRepository>
      <id>snapshots</id>
      <name>Maven Central Development Repository</name>
      <url>scp://repo1.maven.org/home/projects/maven/repository-staging/snapshots/maven2</url>
    </snapshotRepository>
  </distributionManagement>

            String jdkName = jenkinsEnv.jdkFromVersion(buildOs, buildJdk)
            String mvnName = jenkinsEnv.mvnFromVersion(buildOs, buildMvn)
            try {
                withEnv(["JAVA_HOME=${ tool "$jdkName" }",
                         "PATH+MAVEN=${ tool "$jdkName" }/bin:${tool "$mvnName"}/bin",
                         "MAVEN_OPTS=-Xms2g -Xmx4g -Djava.awt.headless=true"]) {                   

  <licenses>
    <license>
      <name>The Apache Software License, Version 2.0</name>
      <url>/LICENSE.txt</url>
    </license>
  </licenses>
  <scm>
    <connection>scm:cvs:pserver:******@****.***:/home/cvspublic:jakarta-commons/logging</connection>
    <url>http://cvs.apache.org/viewcvs/jakarta-commons/logging/</url>
  </scm>
  <organization>
    <name>The Apache Software Foundation</name>

:chkMHome
set "MAVEN_HOME=%~dp0"
set "MAVEN_HOME=%MAVEN_HOME:~0,-5%"
if "%MAVEN_HOME%"=="" goto error

:checkMCmd

      <id>repo1</id>
      <name>Maven Central Repository</name>
      <url>scp://repo1.maven.org/home/projects/maven/repository-staging/to-ibiblio/maven2</url>
    </repository>
    <snapshotRepository>
      <id>snapshots</id>
      <name>Maven Central Development Repository</name>
      <url>scp://repo1.maven.org/home/projects/maven/repository-staging/snapshots/maven2</url>
    </snapshotRepository>
    <site>

  4) Make sure JAVA_HOME is set to the location of your JDK

  5) Run "mvn --version" to verify that it is correctly installed.

  For complete documentation, see https://maven.apache.org/download.html#Installation

  Licensing
  ---------

  Please see the file called LICENSE.

  Maven URLs
  ----------

  Home Page:          https://maven.apache.org/

        tm1.addProvide("vendor", "sun");
        Xpp3Dom configuration1 = new Xpp3Dom("configuration");
        Xpp3Dom jdkHome1 = new Xpp3Dom("jdkHome");
        jdkHome1.setValue("${env.JAVA_HOME}");
        configuration1.addChild(jdkHome1);
        tm1.setConfiguration(configuration1);

        ToolchainModel tm2 = new ToolchainModel();
        tm1.setType("jdk");
        tm1.addProvide("version", "1.4");

<!--
 | This is the toolchains file for Maven. It can be specified at two levels:
 |
 |  1. User Level. This toolchains.xml file provides configuration for a single user,
 |                 and is normally provided in ${user.home}/.m2/toolchains.xml.
 |
 |                 NOTE: This location can be overridden with the CLI option:
 |
 |                 -t /path/to/user/toolchains.xml
 |

        }

        if (localRepositoryPath == null || localRepositoryPath.isEmpty()) {
            localRepositoryPath = new File(System.getProperty("user.home"), ".m2/repository").getAbsolutePath();
        }

        try {
            return repositorySystem.createLocalRepository(new File(localRepositoryPath));
        } catch (Exception e) {