/**
     * Returns the plugin context for mojo being executed and the specified
     * {@link Project}, never returns {@code null} as if context not present, creates it.
     *
     * <strong>Implementation note:</strong> while this method return type is {@link Map}, the
     * returned map instance implements {@link java.util.concurrent.ConcurrentMap} as well.
     *

/**
 * The Exception class throw by the {@link Lookup} service.
 *
 * @since 4.0.0
 */
@Experimental
public class LookupException extends MavenException {

    public LookupException(String message) {
        super(message);
    }

    /**
     * @param message the message to give
     * @param e the {@link Exception}
     */
    public LookupException(String message, Exception e) {

import org.apache.maven.api.annotations.Experimental;
import org.apache.maven.api.annotations.Nonnull;

/**
 * Access to {@link Type} registry.
 *
 * @since 4.0.0
 */
@Experimental
public interface TypeRegistry extends ExtensibleEnumRegistry<Type> {

    /**
     * Obtain the {@link Type} from the specified {@code id}.
     * If no type is known for {@code id}, the registry will
     * create a custom {@code Type} for it.

    /**
     * Gets the problems that were encountered during the settings building. Note that only problems of severity
     * {@link BuilderProblem.Severity#WARNING} and below are reported here. Problems with a higher severity level cause
     * the settings builder to fail with a {@link ToolchainsBuilderException}.
     *
     * @return the problems that were encountered during the settings building, can be empty but never {@code null}

 */
public interface MavenArtifactRelocationSource {
    /**
     * Returns {@link Artifact} instance where to relocate to, or {@code null}.
     *
     * @param session The session, never {@code null}.
     * @param result The artifact descriptor result, never {@code null}.
     * @param model The artifact model, never {@code null}.
     * @return The {@link Artifact} to relocate to, or {@code null} if no relocation wanted.
     */

 *
 */
public interface ProfileActivationContext {
    /**
     * Key of the property containing the project's packaging.
     * Available in {@link #getUserProperties()}.
     * @since 4.0.0
     */
    String PROPERTY_NAME_PACKAGING = "packaging";

    /**
     * Gets the identifiers of those profiles that should be activated by explicit demand.
     *

     * what phases have run dependencies in some scopes won't be included. e.g. if only compile phase has run,
     * dependencies with scope test won't be included.
     *
     * @return {@link Set} < {@link Artifact} >
     * @see #getDependencyArtifacts() to get only direct dependencies
     */
    public Set<Artifact> getArtifacts() {
        if (artifacts == null) {

            }

            return null;
        }
    }

    /**
     * Wraps an arbitrary object with an {@link ObjectBasedValueSource} instance, then
     * wraps that source with a {@link PrefixedValueSourceWrapper} instance, to which
     * this class delegates all of its calls.
     */
    public static class PrefixedObjectValueSource extends AbstractDelegatingValueSource

import org.eclipse.aether.graph.Dependency;
import org.eclipse.aether.graph.Exclusion;
import org.eclipse.aether.resolution.ArtifactDescriptorResult;

/**
 * Populates Aether {@link ArtifactDescriptorResult} from Maven project {@link Model}.
 * <p>
 * <strong>Note:</strong> This class is part of work in progress and can be changed or removed without notice.
 * @since 3.2.4
 */
public class ArtifactDescriptorReaderDelegate {

import org.apache.maven.api.annotations.Nonnull;
import org.apache.maven.api.annotations.Nullable;

import static org.apache.maven.api.services.BaseRequest.nonNull;

/**
 * A Source specific to load POMs.  The {@link #resolve(ModelLocator, String)} method
 * will be used to find POMs for children modules.
 *
 * @since 4.0.0
 */
public interface ModelSource extends Source {

    interface ModelLocator {
        /**