building logic from multiple toolchains files is done in {{{../maven-toolchain-builder/}Maven Toolchain Builder}}.

 The following are generated from this model:

   * {{{./apidocs/index.html}Java sources}} with Reader and Writers for the Xpp3 XML parser, <<<ToAPiV3()>>> and <<<ToApiV4()>>> transformers, and <<<v4>>> package
     for Merger and v4 Reader and Writers for the Xpp3 XML parser,

      <artifactId>dependency</artifactId>
    </dependency>
    <dependency>
      <groupId>ut.simple</groupId>
      <artifactId>dependency</artifactId>
      <version>1.0</version>
      <classifier>sources</classifier>
    </dependency>
  </dependencies>

                    result.getMissingArtifacts(),
                    request.getRemoteRepositories());
        }

        // this should never happen since we checked all possible error sources before but better be sure
        if (result.hasExceptions()) {
            throw new ArtifactResolutionException(
                    "Unknown error during artifact resolution, " + request + ", " + result.getExceptions(),

Maven 4 API - Immutable Settings Model

 This is strictly the immutable model for Maven settings in <<<org.apache.maven.api.settings>>> package.

 The following are generated from this model:

   * {{{./apidocs/index.html}Java sources}} with <<<Builder>>> inner classes for immutable instances creation.

 See also corresponding {{{../../maven-settings/index.html}Maven classical settings model documentation}}.

     */
    public abstract ConfigurableFileCollection getCssFiles();

    /**
     * The source code to be documented. This should be the "public" APIs.
     */
    public abstract ConfigurableFileCollection getDocumentedSource();

    /**
     * Source code root folders. Java, Groovy and Kotlin public API sources, including
     * generated code.
     */
    public abstract ConfigurableFileCollection getSourceRoots();

        // merge implicitly assumes that merge is only called on the same GAV and does not perform any validation here!
        Metadata source = new Metadata();
        source.setArtifactId("source-artifact");
        source.setGroupId("source-group");
        source.setVersion("2.0");
        assertFalse(target.merge(source));
        assertEquals("myArtifact", target.getArtifactId());
        assertEquals("myGroup", target.getGroupId());

 building logic from multiple POMs and building context is done in {{{../maven-model-builder/}Maven Model Builder}}.

 The following are generated from this model:

   * {{{./apidocs/index.html}Java sources}} with Reader and Writers for the Xpp3 XML parser, <<<ToAPiV3()>>> and <<<ToApiV4()>>> transformers, and <<<v4>>> package
     for Merger and v4 Reader and Writers for the Xpp3 XML parser,

    assert(name != "javadocAll") // This plugin should not be applied to the :docs project.

    onlyIf("Do not run the task if there are no java sources") {
        // Javadoc task will complain if we only have package-info.java files and no
        // other java files (as is with some Kotlin projects)
        !source.matching {
            exclude("**/package-info.java")
        }.isEmpty
    }

    options {

 []

 A plugin is described in a {{{./plugin.html}<<<META-INF/maven/plugin.xml>>> plugin descriptor}},
 generally generated from plugin sources using {{{/plugin-tools/maven-plugin-plugin/}maven-plugin-plugin}}.

* See Also

 * {{{/developers/mojo-api-specification.html}Mojo API Specification}}

        <executions>
          <execution>
            <id>plugin</id>
            <goals>
              <goal>velocity</goal>
            </goals>
            <phase>generate-sources</phase>
            <configuration>
              <velocityBasedir>${project.basedir}/../../src/mdo</velocityBasedir>
              <version>1.2.0</version>
              <models>