* Maven core itself or a Maven core extension.
 *
 * @since 3.3.0
 */
public class CoreExtensionEntry {
    private final ClassRealm realm;

    private final Set<String> artifacts;

    private final Set<String> packages;

    private final String key;

    private final XmlNode configuration;

    public CoreExtensionEntry(
            ClassRealm realm,
            Collection<String> artifacts,

        return container;
    }

    protected Set<String> collectExportedArtifacts(
            CoreExtensionEntry coreEntry, List<CoreExtensionEntry> extensionEntries) {
        Set<String> exportedArtifacts = new HashSet<>(coreEntry.getExportedArtifacts());
        for (CoreExtensionEntry extension : extensionEntries) {
            exportedArtifacts.addAll(extension.getExportedArtifacts());
        }

import org.apache.maven.extension.internal.CoreExtensionEntry;
import org.apache.maven.impl.model.DefaultInterpolator;
import org.apache.maven.internal.xml.XmlPlexusConfiguration;
import org.apache.maven.model.v4.MavenTransformer;
import org.codehaus.plexus.configuration.PlexusConfiguration;

public class ExtensionConfigurationModule implements Module {

    private final CoreExtensionEntry extension;

import org.apache.maven.extension.internal.CoreExtensionEntry;

/**
 * Represents a core extension that has been selected to be loaded.
 * @param coreExtension The extension configuration entry with location tracking.
 * @param entry The loaded entry with descriptor.
 */

import org.apache.maven.extension.internal.CoreExtensionEntry;
import org.apache.maven.impl.model.DefaultInterpolator;
import org.apache.maven.internal.xml.XmlPlexusConfiguration;
import org.apache.maven.model.v4.MavenTransformer;
import org.codehaus.plexus.configuration.PlexusConfiguration;

@Deprecated
public class ExtensionConfigurationModule implements Module {

    private final CoreExtensionEntry extension;

        }
    }

    private List<CoreExtensionEntry> resolveCoreExtensions(
            RepositorySystemSession repoSession,
            List<RemoteRepository> repositories,
            Set<String> providedArtifacts,
            List<CoreExtension> configuration,
            UnaryOperator<String> interpolator)
            throws Exception {
        List<CoreExtensionEntry> extensions = new ArrayList<>();

@Singleton
public class CoreExportsProvider implements Provider<CoreExports> {

    private final CoreExports exports;

    @Inject
    public CoreExportsProvider(CoreRealm coreRealm) {
        this(new CoreExports(CoreExtensionEntry.discoverFrom(coreRealm.getRealm())));
    }

    public CoreExportsProvider(CoreExports exports) {
        this.exports = Objects.requireNonNull(exports);
    }

    @Override
    public CoreExports get() {

import org.apache.maven.execution.MavenExecutionRequest;
import org.apache.maven.execution.MavenSession;
import org.apache.maven.extension.internal.CoreExports;
import org.apache.maven.extension.internal.CoreExtensionEntry;
import org.apache.maven.impl.DefaultArtifactCoordinatesFactory;
import org.apache.maven.impl.DefaultArtifactResolver;
import org.apache.maven.impl.DefaultModelVersionParser;

            coreRealm = cliRequest.classWorld.getRealms().iterator().next();
        }

        List<File> extClassPath = parseExtClasspath(cliRequest);

        CoreExtensionEntry coreEntry = CoreExtensionEntry.discoverFrom(coreRealm);
        List<CoreExtensionEntry> extensions =
                loadCoreExtensions(cliRequest, coreRealm, coreEntry.getExportedArtifacts());