URL url = new URL("gcs://mybucket/object.txt");
        Handler handler = new Handler();
        Handler.GcsURLConnection conn = (Handler.GcsURLConnection) handler.openConnection(url);

        final int threadCount = 10;
        final CountDownLatch startLatch = new CountDownLatch(1);
        final CountDownLatch doneLatch = new CountDownLatch(threadCount);

        Set<Artifact> reversedArtifacts = new LinkedHashSet<>(4);
        artifacts.add(new DefaultArtifact("g", "a4", "v", "compile", "jar", "", null));
        artifacts.add(new DefaultArtifact("g", "a3", "v", "compile", "jar", "", null));
        artifacts.add(new DefaultArtifact("g", "a2", "v", "compile", "jar", "", null));
        artifacts.add(new DefaultArtifact("g", "a1", "v", "compile", "jar", "", null));

    assertThat(listener.isEmpty()).isTrue();

    Object one = new Object();
    Object two = new Object();
    Object three = new Object();
    Object four = new Object();
    Object five = new Object();
    Object six = new Object();

    map.put(one, two);
    map.remove(one);
    assertNotified(listener, one, two, RemovalCause.EXPLICIT);

        executionResult.addBuildSummary(new BuildSuccess(project, 0));
        return project;
    }

    private MavenProject createFailedMavenProject(String artifactId) {
        MavenProject project = createMavenProject(artifactId);
        executionResult.addBuildSummary(new BuildFailure(project, 0, new Exception()));
        executionResult.addException(new LifecycleExecutionException("", project));

    assertThat(listener.isEmpty()).isTrue();

    Object one = new Object();
    Object two = new Object();
    Object three = new Object();
    Object four = new Object();
    Object five = new Object();
    Object six = new Object();

    map.put(one, two);
    map.remove(one);
    assertNotified(listener, one, two, RemovalCause.EXPLICIT);

        SuggestItem[] items = new SuggestItem[3];
        for (int i = 0; i < 3; i++) {
            String[][] readings = new String[1][];
            readings[0] = new String[] { "query" + i };
            items[i] = new SuggestItem(new String[] { "クエリ" + i }, readings, new String[] { "content" }, 0, 15 + i, -1,

                new SimpleLookup(List.of(
                        new DefaultRequestCacheFactory(),
                        new DefaultRepositoryFactory(new DefaultRemoteRepositoryManager(
                                new DefaultUpdatePolicyAnalyzer(),
                                new DefaultChecksumPolicyProvider(),
                                new DefaultRepositoryKeyFunctionFactory())),

        if (in == null) {
            throw new CrawlerSystemException("LHA archive input stream is null. Cannot extract text from null input.");
        }

        final MimeTypeHelper mimeTypeHelper = getMimeTypeHelper();
        final ExtractorFactory extractorFactory = getExtractorFactory();
        final StringBuilder buf = new StringBuilder(1000);

        File tempFile = null;

  private final ForwardingWrapperTester tester = new ForwardingWrapperTester();

  public void testGoodForwarder() {
    tester.testForwarding(
        Arithmetic.class,
        new Function<Arithmetic, Arithmetic>() {
          @Override
          public Arithmetic apply(Arithmetic arithmetic) {
            return new ForwardingArithmetic(arithmetic);
          }
        });
    tester.testForwarding(

    ByteArrayOutputStream bytes = new ByteArrayOutputStream();
    try {
      ObjectOutputStream out = new ObjectOutputStream(bytes);
      out.writeObject(object);
      ObjectInputStream in = new ObjectInputStream(new ByteArrayInputStream(bytes.toByteArray()));
      return (T) requireNonNull(in.readObject());
    } catch (IOException | ClassNotFoundException e) {
      throw new RuntimeException(e);
    }
  }