* particular, this component can be changed or deleted without prior notice.
 *
 * @since 3.0
 */
@Named
@Singleton
public class DefaultLegacySupport implements LegacySupport {

    private static final ThreadLocal<AtomicReference<MavenSession>> SESSION = new InheritableThreadLocal<>();

    @Override
    public void setSession(MavenSession session) {

 * model inheritance.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")
public class DefaultModelUrlNormalizer implements ModelUrlNormalizer {

    @Inject
    private UrlNormalizer urlNormalizer;

    public DefaultModelUrlNormalizer setUrlNormalizer(UrlNormalizer urlNormalizer) {
        this.urlNormalizer = urlNormalizer;

 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")
public class DefaultPluginConfigurationExpander implements PluginConfigurationExpander {

    @Override
    public void expandPluginConfiguration(Model model, ModelBuildingRequest request, ModelProblemCollector problems) {
        Build build = model.getBuild();

 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Named("packaging")
@Singleton
@Deprecated(since = "4.0.0")
public class PackagingProfileActivator implements ProfileActivator {

    @Override
    public boolean isActive(
            org.apache.maven.model.Profile profile, ProfileActivationContext context, ModelProblemCollector problems) {

import java.util.List;

/**
 * Extensions to load.
 *
 * @deprecated Use {@link org.apache.maven.api.cli.extensions.CoreExtension} instead
 */
@Deprecated
@SuppressWarnings("all")
public class CoreExtensions implements Serializable {

    // --------------------------/
    // - Class/Member Variables -/
    // --------------------------/

    /**
     * Field extensions.
     */
    private List<CoreExtension> extensions;

 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")
public class DefaultDependencyManagementImporter implements DependencyManagementImporter {

    @Override
    public void importManagement(
            Model target,
            List<? extends DependencyManagement> sources,
            ModelBuildingRequest request,

 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public class PrefixedObjectValueSource extends AbstractDelegatingValueSource implements QueryEnabledValueSource {

    /**
     * Wrap the specified root object, allowing the specified expression prefix.
     * @param prefix the prefix.
     * @param root the root of the graph.
     */

 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
class ProblemDetectingValueSource implements ValueSource {

    private final ValueSource valueSource;

    private final String bannedPrefix;

    private final String newPrefix;

    private final ModelProblemCollector problems;

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;
    private final UnaryOperator<String> callback;

    private final DefaultInterpolator interpolator = new DefaultInterpolator();

/**
 * System {@link Logger}. Uses provided {@link PrintStream}s or {@link System#err} ones as fallback.
 * This logger is used in case of "early failures" (when no logging may be set up yet).
 */
public class SystemLogger implements Logger {
    private final PrintWriter out;
    private final Level threshold;

    public SystemLogger(@Nullable OutputStream out) {
        this(out, null);
    }