return nullify(metadata.getVersion());
        }

        private String nullify(String str) {
            return (str == null || str.isEmpty()) ? null : str;
        }

        public Object getKey() {
            return metadata.toString();
        }

        public String getRemoteFilename() {
            return metadata.getType();
        }

            this.hashCode = hash;
        }

        @Override
        public int hashCode() {
            return hashCode;
        }

        @Override
        public boolean equals(Object o) {
            if (o == this) {
                return true;
            }

            if (!(o instanceof CacheKey)) {
                return false;
            }

            CacheKey other = (CacheKey) o;

                    return;
                }
                // No module descriptor, check manifest file.
                Manifest mf = jar.getManifest();
                if (mf != null) {
                    Object name = mf.getMainAttributes().get(AUTO_MODULE_NAME);
                    if (name instanceof String) {
                        descriptors = Collections.singletonMap(path, (String) name);

        VERBOSE // at end, list of plugin GAVs along with detailed report of ANY validation issues
    }

    private final Logger logger = LoggerFactory.getLogger(getClass());

    @Override
    public void onEvent(Object event) {
        if (event instanceof ExecutionEvent) {
            ExecutionEvent executionEvent = (ExecutionEvent) event;
            if (executionEvent.getType() == ExecutionEvent.Type.SessionStarted) {

        }

        @Override
        public void init(Context context) throws Exception {}

        @Override
        @SuppressWarnings("checkstyle:MissingSwitchDefault")
        public void onEvent(Object event) throws Exception {
            if (event instanceof ExecutionEvent) {
                ReactorReader reactorReader = lookup.lookup(ReactorReader.class);
                reactorReader.processEvent((ExecutionEvent) event);

  <version>3.0-SNAPSHOT</version>
  <packaging>pom</packaging>
  <name>Apache Maven</name>
  <description>Maven is a project development management and
    comprehension tool. Based on the concept of a project object model:
    builds, dependency management, documentation creation, site
    publication, and distribution publication are all controlled from
    the declarative file. Maven can be extended by plugins to utilise a

  <version>3.0-SNAPSHOT</version>
  <packaging>pom</packaging>
  <name>Apache Maven</name>
  <description>Maven is a project development management and
    comprehension tool. Based on the concept of a project object model:
    builds, dependency management, documentation creation, site
    publication, and distribution publication are all controlled from
    the declarative file. Maven can be extended by plugins to utilise a

     *
     * @throws org.apache.maven.api.services.MavenException if not called from the within a mojo execution
     */
    @Nonnull
    Map<String, Object> getPluginContext(@Nonnull Project project);

    /**
     * Retrieves the service for the interface
     *
     * @throws NoSuchElementException if the service could not be found
     */
    @Nonnull

    }

    private void assertPathSuffixEquals(String expected, Object actual) {
        String a = actual.toString();
        a = a.substring(a.length() - expected.length()).replace('\\', '/');
        assertEquals(expected, a);
    }

    private void assertPathWithNormalizedFileSeparators(Object value) {
        assertEquals(new File(value.toString()).getPath(), value.toString());
    }

      source, and configuration files.

      "Object" form shall mean any form resulting from mechanical
      transformation or translation of a Source form, including but
      not limited to compiled object code, generated documentation,
      and conversions to other media types.

      "Work" shall mean the work of authorship, whether in Source or
      Object form, made available under the License, as indicated by a