* In case the project is loaded externally from a remote repository (as a dependency or
     * even as an external parent), the POM will be parsed in a lenient way.  Local POMs
     * are parsed more strictly.
     */
    boolean isProjectBuild();

    /**
     * Specifies whether plugin processing should take place for the built model.

        List<Path> unresolved = dispatched.get(PathType.UNRESOLVED);
        assertEquals(3, dispatched.size());
        assertEquals(1, unresolved.size());
        assertEquals(8, classes.size()); // "plexus.pom" and "junit.jar" are excluded.
        assertEquals(1, modules.size());
        assertEquals("plexus-1.0.11.pom", unresolved.get(0).getFileName().toString());
        assertEquals("test-extension-1.jar", classes.get(0).getFileName().toString());

 *
 */
public interface LifecycleExecutor {

    // USED BY MAVEN HELP PLUGIN
    @Deprecated
    String ROLE = LifecycleExecutor.class.getName();

    // For a given project packaging find all the plugins that are bound to any registered
    // lifecycles. The project builder needs to now what default plugin information needs to be
    // merged into POM being built. Once the POM builder has this plugin information, versions can be assigned

    private boolean parallel;

    /**
     * Plugin context keyed by project ({@link MavenProject#getId()}) and by plugin lookup key
     * ({@link PluginDescriptor#getPluginLookupKey()}). Plugin contexts itself are mappings of {@link String} keys to
     * {@link Object} values.
     */
    @SuppressWarnings("checkstyle:linelength")
    private final ConcurrentMap<String, ConcurrentMap<String, ConcurrentMap<String, Object>>>

-----------------------------------
You can download the release source from our [download page][maven-download].

Contributing
------------

If you are interested in the development of Maven, please consult the
documentation first and afterward you are welcome to join the developers
mailing list to ask questions or discuss new ideas/features/bugs etc.

Take a look into the [contribution guidelines](CONTRIBUTING.md).

     */
    private static boolean objectsEqual(Object o1, Object o2) {
        if (o1 == null && o2 == null) {
            return true;
        }
        if (o1 == null || o2 == null) {
            return false; // as they are not both null
        }
        return o1.equals(o2);
    }

    // ----------------------------------------------------------------------------
    /**
     * used to eliminate exact duplicates in the edge list

 * <li>unlimited number of version components,</li>
 * <li>version components in the text can be digits or strings,</li>
 * <li>strings are checked for well-known qualifiers and the qualifier ordering is used for version ordering.
 *     Well-known qualifiers (case insensitive) are:<ul>
 *     <li><code>alpha</code> or <code>a</code></li>
 *     <li><code>beta</code> or <code>b</code></li>

     * This type is new in Maven 4.
     */
    String FATJAR = "fatjar";

    /**
     * Artifact type name for a JAR file to unconditionally place on the class-path.
     * If the JAR is modular, its module information are ignored.
     * This type is new in Maven 4.
     */
    String CLASSPATH_JAR = "classpath-jar";

    /**
     * Artifact type name for a JAR file to unconditionally place on the module-path.

            logger.debug("Loading mojo " + mojoDescriptor.getId() + " from plugin realm " + pluginRealm);
        }

        // We are forcing the use of the plugin realm for all lookups that might occur during
        // the lifecycle that is part of the lookup. Here we are specifically trying to keep
        // lookups that occur in contextualize calls in line with the right realm.

    private String deploymentTimestamp;

    public void transformForResolve(Artifact artifact, RepositoryRequest request) throws ArtifactResolutionException {
        // Only select snapshots that are unresolved (eg 1.0-SNAPSHOT, not 1.0-20050607.123456)
        if (artifact.isSnapshot() && artifact.getBaseVersion().equals(artifact.getVersion())) {
            try {
                String version = resolveVersion(artifact, request);