to the host applications ClassRealm as the parent but the search order would be child first, and the parent ClassRealm can optionally choose to limit the searching to particular classes. The application ClassRealm, or parent ClassRealm, should only expose the API in the form of and application interface and model classes that may be required by plugins.

For debugging purposes we also need to keep track of what versions of artifacts are being used so that when we are debugging in the IDE...

                    addToClasspath = false;
                }
            }
            if (addToClasspath) {
                addPathElement(JavaPathType.CLASSES, test);
            }
        }
    }

    /**
     * Adds a dependency to the result. This method populates the {@link #nodes}, {@link #paths},

        List<Path> classes = dispatched.get(JavaPathType.CLASSES);
        List<Path> modules = dispatched.get(JavaPathType.MODULES);
        List<Path> unresolved = dispatched.get(PathType.UNRESOLVED);
        assertEquals(3, dispatched.size());
        assertEquals(1, unresolved.size());
        assertEquals(8, classes.size()); // "plexus.pom" and "junit.jar" are excluded.

     * or {@link JavaPathType#CLASSES} otherwise. A JAR file without module descriptor but with
     * an "Automatic-Module-Name" manifest attribute is considered modular.
     */
    public JavaPathType getPathType() {
        return descriptors.isEmpty() ? JavaPathType.CLASSES : JavaPathType.MODULES;
    }

    /**

                .findFirst()
                .orElse(null);
    }

    /**
     * Determines whether the specified artifact refers to test classes.
     *
     * @param artifact The artifact to check, must not be {@code null}.
     * @return {@code true} if the artifact refers to test classes, {@code false} otherwise.
     */
    private static boolean isTestArtifact(Artifact artifact) {

        try {
            Injector injector = Injector.create();
            injector.discover(pluginRealm);
            // Add known classes
            // TODO: get those from the existing plexus scopes ?
            injector.bindInstance(Session.class, sessionV4);
            injector.bindInstance(Project.class, project);

    @Test
    public void testValueExtractionWithAPomValueContainingAPath() throws Exception {
        String expected = getTestFile("target/test-classes/target/classes").getCanonicalPath();

        Build build = new Build();
        build.setDirectory(expected.substring(0, expected.length() - "/classes".length()));

        Model model = new Model();
        model.setBuild(build);

        MavenProject project = new MavenProject(model);

    public static final String API_REALMID = "maven.api";

    /**
     * During normal command line build, ClassWorld is loaded by jvm system classloader, which only includes
     * plexus-classworlds jar and possibly javaagent classes, see https://issues.apache.org/jira/browse/MNG-4747.
     * <p>
     * Using ClassWorld to determine plugin/extensions realm parent classloaders gives m2e and integration test harness

        assertLocalArtifactPresent(b);
    }

    @Override
    protected Artifact createArtifact(String groupId, String artifactId, String version, String type) throws Exception {
        // for the anonymous classes
        return super.createArtifact(groupId, artifactId, version, type);
    }

    @Test
    void testTransitiveResolutionWhereAllArtifactsArePresentInTheLocalRepository() throws Exception {

    <p>An XSD is available at <a href="https://maven.apache.org/xsd/plugin-2.0.0.xsd">https://maven.apache.org/xsd/plugin-2.0.0.xsd</a></p>
  ]]></description>
  <classes>
    <class rootElement="true" xml.tagName="plugin" xdoc.anchorName="plugin">
      <name>PluginDescriptor</name>
      <version>1.0.0+</version>
      <description>Root element of the {@code plugin.xml} file.</description>