* internal utility component that is only public for technical reasons, it is not part of the public API. In
 * 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

 * 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) {

/**
 * Handles expansion of general build plugin configuration into individual executions.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Named
@Singleton
@Deprecated(since = "4.0.0")
public class DefaultPluginConfigurationExpander implements PluginConfigurationExpander {

    @Override

/**
 * Determines profile activation based on the project's packaging.
 *
 * @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(

import org.apache.maven.model.Repository;

/**
 * Signals an error when adding a repository to the model resolver.
 *
 * @deprecated use {@code org.apache.maven.api.services.ModelBuilder} instead
 */
@Deprecated(since = "4.0.0")
public class InvalidRepositoryException extends Exception {

    /**
     * The repository that raised this error, can be {@code null}.
     */
    private Repository repository;

    /**

/**
 * Handles the import of dependency management from other models into the target model.
 *
 * @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,

 * wraps that source with a {@link PrefixedValueSourceWrapper} instance, to which
 * this class delegates all of its calls.
 *
 * @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.

/**
 * Wraps another value source and intercepts interpolated expressions, checking for problems.
 *
 * @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;

 * configuration files in class loader: key is the class name of the ILoggerFactory, value is the class name of
 * the corresponding Slf4jConfiguration.
 *
 * @since 3.1.0
 */
public class Slf4jConfigurationFactory {
    public static final String RESOURCE = "META-INF/maven/slf4j-configuration.properties";

 * <p>
 * This implementation is backed by Maven Resolver API, supported protocols and transport selection depends on it. If
 * resolver preference regarding transport is altered, it will affect this service as well.
 *
 * @since 4.0.0
 */
@Experimental
@Consumer
public interface TransportProvider extends Service {
    /**
     * Provides new {@link Transport} instance for given {@link RemoteRepository}, if possible.
     *