* public for technical reasons, it is not part of the public API. In particular, this interface can be changed or
 * deleted without prior notice.
 *
 */
public interface ClassRealmManager {

    /**
     * Gets the class realm hosting the Maven core.
     *
     * @return The class realm hosting the Maven core, never {@code null}.
     */
    ClassRealm getCoreRealm();

    /**

                    .thenReturn(logger);

            classRealmManager = newDefaultClassRealmManager(container);
            classRealm = classRealmManager.createProjectRealm(newTestModel(), newTestArtifactList());
        }

        assertEquals(classRealmManager.getMavenApiRealm(), classRealm.getParentClassLoader());

    private final ClassRealmManager classRealmManager;
    private final ProjectRealmCache projectRealmCache;
    private final MavenRepositorySystem repositorySystem;
    private final MavenPluginManager pluginManager;

    @Inject
    public DefaultProjectBuildingHelper(
            ClassRealmManager classRealmManager,
            ProjectRealmCache projectRealmCache,

    private final Logger logger = LoggerFactory.getLogger(getClass());

    private final PlexusContainer container;
    private final ClassRealmManager classRealmManager;
    private final PluginDescriptorCache pluginDescriptorCache;
    private final PluginRealmCache pluginRealmCache;
    private final PluginDependenciesResolver pluginDependenciesResolver;

 * {{{./extension.html}extension descriptor}} and {{{./core-extensions.html}core extensions}},

 * {{{/guides/mini/guide-maven-classloading.html}classloader hierarchy}} done by <<<ClassRealmManager>>> component
 ({{{./apidocs/org/apache/maven/classrealm/ClassRealmManager.html}javadoc}}),
 with its <<<DefaultClassRealmManager>>> implementation
 ({{{./xref/org/apache/maven/classrealm/DefaultClassRealmManager.html}source}}), using

 */
package org.apache.maven.classrealm;

import org.codehaus.plexus.classworlds.realm.ClassRealm;

/**
 * ClassRealmManagerDelegate is used to perform addition configuration of
 * class realms created by ClassRealmManager.
 *
 */
public interface ClassRealmManagerDelegate {

    void setupRealm(ClassRealm classRealm, ClassRealmRequest request);

 * without prior notice.
 *
 */
@Named
@Singleton
public class DefaultClassRealmManager implements ClassRealmManager {
    public static final String API_REALMID = "maven.api";

    /**
     * During normal command line build, ClassWorld is loaded by jvm system classloader, which only includes