* @see org.eclipse.aether.RepositoryEvent
     */
    void onEvent(Object event) throws Exception;

    /**
     * Notifies the spy of Maven's termination, allowing it to free any resources allocated by it.
     */
    void close() throws Exception;

        // do nothing
    }

    /**
     * Invoked after all projects were built.
     *
     * This callback is intended to allow extensions to perform cleanup of any
     * allocated external resources after the build. It is invoked on best-effort
     * basis and may be missed due to an Error or RuntimeException in Maven core
     * code.
     *
     * @param session the Maven session

     * look up the mojo from. <strong>Warning:</strong> The returned mojo instance must be released via
     * {@link #releaseMojo(Object, MojoExecution)} when the mojo is no longer needed to free any resources allocated for
     * it.
     *
     * @param mojoInterface The component role of the mojo, must not be {@code null}.
     * @param session The build session in whose context the mojo will be used, must not be {@code null}.

     *
     * @param message The detail message, may be {@code null}.
     * @param lifecyclePhase The name of the lifecycle phase that could not be located, may be {@code null}.
     */
    public LifecyclePhaseNotFoundException(String message, String lifecyclePhase) {
        super(message);
        this.lifecyclePhase = (lifecyclePhase != null) ? lifecyclePhase : "";
    }

                        relocation.global ? "User global relocation" : "User project relocation");
                LOGGER.debug(
                        "The artifact {} has been relocated to {}: {}",
                        original,
                        result,
                        relocation.global ? "User global relocation" : "User project relocation");
                return result;
            }

    int SNAPSHOT = 2;

    int RELEASE_OR_SNAPSHOT = RELEASE | SNAPSHOT;

    /**
     * Get the repository the metadata was located in.
     *
     * @return the repository
     */
    ArtifactRepository getRepository();

    /**
     * Set the repository the metadata was located in.
     *
     * @param remoteRepository the repository
     */
    void setRepository(ArtifactRepository remoteRepository);

    String STRICT = "strict";

    /**
     * Locates the pom in the given directory.
     *
     * @param dir the directory to locate the pom for, never {@code null}
     * @return a {@code Source} pointing to the located pom or an empty {@code Optional} if none was found by this parser
     */
    @Nonnull
    Optional<Source> locate(@Nonnull Path dir);

    /**

    private final String lifecycleId;

    /**
     * Creates a new exception to indicate that the specified lifecycle is unknown.
     *
     * @param lifecycleId The identifier of the lifecycle that could not be located, may be {@code null}.
     */
    public LifecycleNotFoundException(String lifecycleId) {
        super("Unknown lifecycle " + lifecycleId);
        this.lifecycleId = (lifecycleId != null) ? lifecycleId : "";
    }

 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven;

/**
 * Signals that the user referenced one or more Maven profiles that could not be located in either the project or the
 * settings.
 */
public class MissingProfilesException extends Exception {
    public MissingProfilesException(String message) {
        super(message);
    }

                            artifact instanceof org.apache.maven.internal.impl.resolver.RelocatedArtifact relocated
                                    ? relocated.getMessage()
                                    : null;
                    logger.warn("The artifact " + child.getRelocations().get(0) + " has been relocated to " + artifact
                            + (message != null ? ": " + message : ""));
                }