List<Artifact> artifacts = pluginDescriptor.getArtifacts();

        for (Artifact a : artifacts) {
            if (a.getGroupId().equals("org.apache.maven.its.mng3586")
                    && a.getArtifactId().equals("tools")) {
                // The system scoped dependencies will be present in the classloader for the plugin
                return;
            }
        }

    <module>plexus-component-factories</module>
    <module>plexus-containers</module>
    <module>plexus-logging</module>
    <module>plexus-maven-plugin</module>
    <module>plexus-services</module>
    <module>plexus-tools</module>
    <module>plexus-utils</module>
  </modules>
  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-release-plugin</artifactId>

- plugin execution error due to something that is not expected to go wrong (the compiler executable missing)
- asking to use a plugin for which you do not have a version defined - tools to easily select versions
- goal not found in a plugin (probably could list the ones that are)

 */

// PluginNotFoundException, PluginResolutionException, PluginDescriptorParsingException,

    <module>plexus-components</module>
    <module>plexus-component-factories</module>
    <module>plexus-containers</module>
    <module>plexus-logging</module>
    <module>plexus-maven-plugin</module>
    <module>plexus-tools</module>
    <module>plexus-utils</module>
  </modules>
  <build>
    <extensions>
      <extension>
        <groupId>org.apache.maven.wagon</groupId>
        <artifactId>wagon-webdav</artifactId>

          <version>4.0.0+</version>
          <description>
            Gives the status of this artifact in the remote repository.
            This must not be set in your local project, as it is updated by
            tools placing it in the repository. Valid values are: {@code none} (default),
            {@code converted} (repository manager converted this from an Maven 1 POM),
            {@code partner}

org.hamcrest; import static java.lang.annotation.ElementType.METHOD; import java.lang.annotation.Retention; import static java.lang.annotation.RetentionPolicy.RUNTIME; import java.lang.annotation.Target; /** * Marks a Hamcrest static factory method so tools recognise them. * A factory method is an equivalent to a named constructor. * * @author Joe Walnes */ @Retention(RUNTIME) @Target({METHOD}) public @interface Factory { } org/hamcrest/FeatureMatcher.java org/hamcrest/FeatureMatcher.java package org.hamcrest;...

     *
     * @return the toolchain type
     */
    String getType();

    /**
     * Gets the platform tool executable.
     *
     * @param toolName the tool platform independent tool name
     * @return file representing the tool executable, or null if the tool cannot be found
     */
    String findTool(String toolName);

    /**
     * Let the toolchain decide if it matches requirements defined

            name: 'ITS_BRANCH' )
  }
  stages {
    stage("Build Maven Core") {
      steps {
        withEnv(["JAVA_HOME=${ tool "JDK 1.8 (latest)" }", "PATH+MAVEN=${tool 'Maven 3.6.3'}/bin:${env.JAVA_HOME}/bin"]) {
            sh "mvn -Drat.skip=true -T2 -B -V install -PversionlessMavenDist -Dmaven.repo.local=${env.WORKSPACE}/repo"
        }
      }
    }

 with its <<<DefaultArtifact>>> implementation ({{{./xref/org/apache/maven/artifact/DefaultArtifact.html}source}}).

 The jar file is executable and provides a little tool to display how Maven parses and compares versions:

+----+
$ java -jar maven-artifact-*.jar 3.2.4-alpha-1 3.2.4-SNAPSHOT 3.2.4.0
Display parameters as parsed by Maven (in canonical form) and comparison result:

    MavenProject build(File pom, ProjectBuilderConfiguration configuration) throws ProjectBuildingException;

    // TODO maven-site-plugin -- not used by the plugin directly, but used by Doxia Integration Tool & MPIR
    // see DOXIASITETOOLS-167 & MPIR-349
    MavenProject build(File pom, ArtifactRepository localRepository, ProfileManager profileManager)
            throws ProjectBuildingException;