* artifact files.
     *
     * @param session the {@link Session}, must not be {@code null}
     * @param root the Maven Dependency, must not be {@code null}
     * @return the collection result, never {@code null}
     * @throws DependencyCollectorException if the dependency tree could not be built

     * @param input The file to deserialize the metadata from, must not be {@code null}.
     * @param options The options to use for deserialization, may be {@code null} to use the default values.
     * @return The deserialized metadata, never {@code null}.
     * @throws IOException If the metadata could not be deserialized.
     * @throws MetadataParseException If the input format could not be parsed.
     */

                () -> newModelResolver().resolveModel(parent.getDelegate(), new AtomicReference<>()),
                "Expected 'UnresolvableModelException' not thrown.");
        assertNotNull(e.getMessage());
        assertThat(e.getMessage(), containsString("Could not find artifact org.apache:apache:pom:0 in central"));
    }

    @Test

 * {@link org.apache.maven.api.services.VersionParser} as this is not a service,
 * but at Maven runtime it MAY actually use that service.
 *
 * @since 4.0.0
 */
public interface ModelVersionParser {

    /**
     * Parses the specified version string, for example "1.0".
     *
     * @param version the version string to parse, must not be {@code null}

/**
 * A container for data that is specific to a session.
 * All components may use this storage to associate arbitrary data with a session.
 * <p>
 * Unlike a cache, this session data is not subject to purging. For this same reason, session data should also not be
 * abused as a cache (i.e. for storing values that can be re-calculated) to avoid memory exhaustion.
 * <p>
 * <strong>Note:</strong> Actual implementations must be thread-safe.
 *

    private final String lifecyclePhase;

    /**
     * Creates a new exception to indicate that the specified lifecycle phase is not defined by any known lifecycle.
     *
     * @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) {

     * Returns the elements placed on the classpath for compilation.
     * This method can be invoked when the caller does not support module-path.
     *
     * @throws DependencyResolutionRequiredException if an artifact file is used, but has not been resolved
     *
     * @deprecated This method is unreliable because it does not consider other dependency properties.
     * See {@link org.apache.maven.api.JavaPathType} instead for better analysis.

                                + "plugin(s) that have goals not marked as thread-safe to support parallel execution.",
                        "While this /may/ work fine, please look for plugin updates and/or "
                                + "request plugins be made thread-safe.",
                        "If reporting an issue, report it against the plugin in question, not against Apache Maven.")) {
                    logger.warn(s);

     * cache.
     *
     * @param project The project that employs the plugin realm, must not be {@code null}.
     * @param record The cache record being used for the project, must not be {@code null}.
     */
    void register(MavenProject project, Key key, CacheRecord record);

        }

        if (!hasBeenPackagedDuringThisSession(project)) {
            // fallback to loose class files only if artifacts haven't been packaged yet
            // and only for plain old jars. Not war files, not ear files, not anything else.
            return determineBuildOutputDirectoryForArtifact(project, artifact);
        }

        // The fall-through indicates that the artifact cannot be found;