*   <li>If a {@code module-info.class} file is found in the root directory or in a
     *       {@code "META-INF/versions/{n}/"} subdirectory, builds a singleton map with
     *       the module name declared in that descriptor.</li>
     *   <li>Otherwise if an {@code "Automatic-Module-Name"} attribute is declared in the
     *       {@code META-INF/MANIFEST.MF} file, builds a singleton map with the value of that attribute.</li>
     * </ul>
     *

        if (classLoader == null) {
            classLoader = getClass().getClassLoader();
        }
        try {
            for (Iterator<URL> it = classLoader
                            .getResources("META-INF/maven/org.apache.maven.api.di.Inject")
                            .asIterator();
                    it.hasNext(); ) {
                URL url = it.next();
                List<String> lines;

                assertThat(path, is(notNullValue()));
                assertThat(path, path.startsWith("junit") || path.startsWith("org/junit") || path.startsWith("org/hamcrest")
                        || path.startsWith("META-INF/") || path.equals("LICENSE-junit.txt"), is(true));
                assertThat(is, is(notNullValue()));
                count++;
            } finally {
                CloseableUtil.close(is);
            }
        });

            changed = true;
        } else {
            changed = metadata.merge(this.metadata);
        }

        // beware meta-versions!
        String version = metadata.getVersion();
        if (Artifact.LATEST_VERSION.equals(version) || Artifact.RELEASE_VERSION.equals(version)) {
            // meta-versions are not valid <version/> values...don't write them.
            metadata.setVersion(null);
        }

 * Plugin metadata contains G level list of "prefix" to A mapping for plugins present under this G.
 */
class PluginsMetadataGenerator implements MetadataGenerator {
    private static final String PLUGIN_DESCRIPTOR_LOCATION = "META-INF/maven/plugin.xml";

    private final Map<Object, PluginsMetadata> processedPlugins;

    private final Date timestamp;

    PluginsMetadataGenerator(RepositorySystemSession session, InstallRequest request) {

     *   <li>If a {@code module-info.class} file is found in the root directory or in a
     *       {@code "META-INF/versions/{n}/"} subdirectory, builds a singleton map with
     *       the module name declared in that descriptor.</li>
     *   <li>Otherwise if an {@code "Automatic-Module-Name"} attribute is declared in the
     *       {@code META-INF/MANIFEST.MF} file, builds a singleton map with the value of that attribute.</li>
     * </ul>
     *

        }

        pluginDescriptor.setPluginArtifact(pluginArtifact);

        return pluginDescriptor;
    }

    private String getPluginDescriptorLocation() {
        return "META-INF/maven/plugin.xml";
    }

    private PluginDescriptor parsePluginDescriptor(
            PluginDescriptorBuilder.StreamSupplier is, Plugin plugin, String descriptorLocation)

    @Nonnull
    Map<PathType, List<Path>> resolveDependencies(
            @Nonnull Project project, @Nonnull PathScope scope, @Nonnull Collection<PathType> desiredTypes);

    /**
     * Resolves an artifact's meta version (if any) to a concrete version. For example, resolves "1.0-SNAPSHOT"
     * to "1.0-20090208.132618-23" or "RELEASE"/"LATEST" to "2.0".
     * <p>
     * Shortcut for {@code getService(VersionResolver.class).resolve(...)}

    String CRAWLER_DOCUMENT_FILE_MAX_DIGEST_LENGTH = "crawler.document.file.max.digest.length";

    /** The key of the configuration. e.g. true */
    String CRAWLER_DOCUMENT_FILE_APPEND_META_CONTENT = "crawler.document.file.append.meta.content";

    /** The key of the configuration. e.g. true */
    String CRAWLER_DOCUMENT_FILE_APPEND_BODY_CONTENT = "crawler.document.file.append.body.content";

 * Creates an extension descriptor from some XML stream.
 *
 */
public class ExtensionDescriptorBuilder {

    /**
     * @since 3.3.0
     */
    public String getExtensionDescriptorLocation() {
        return "META-INF/maven/extension.xml";
    }

    /**
     * Extracts the extension descriptor (if any) from the specified JAR file.
     *