assertFalse(ModifierUtil.isAbstract(HashMap.class));
    }

    /**
     *
     */
    public static class Hoge {

        /**
         *
         */
        public static final String s = null;

        /**
         * @return 何か
         */
        public static String hoge() {
            return "aaa";
        }

        /**
         *
         */
        public String aaa;

        return 0;
    }

    @Override
    int readDataWireFormat(final byte[] buffer, final int bufferIndex, final int len) {
        if (pipe.pipeIn != null) {
            final TransactNamedPipeInputStream in = (TransactNamedPipeInputStream) pipe.pipeIn;
            synchronized (in.lock) {
                in.receive(buffer, bufferIndex, len);
                in.lock.notify();

        this.userProperties = userProperties;
        return this;
    }

    @Override
    public Properties getUserProperties() {
        if (userProperties == null) {
            userProperties = new Properties();
        }

        return userProperties;
    }

    @Override
    public Properties getExecutionProperties() {
        return executionProperties;
    }

    }

    protected static void loadBuildSrcVersion(Properties loadedProps, ProviderFactory providers) {
        String elasticsearch = loadedProps.getProperty("elasticsearch");
        if (elasticsearch == null) {
            throw new IllegalStateException("Elasticsearch version is missing from properties.");
        }
        if (elasticsearch.matches("[0-9]+\\.[0-9]+\\.[0-9]+") == false) {
            throw new IllegalStateException(

                    .getSrcDirs()
                    .stream()
                    .filter(f -> f.isDirectory() && f.getName().equals("resources"))
                    .findFirst()
                    .orElse(null)
            );
        });

        // Register rest resources with source set
        yamlTestSourceSet.getOutput()
            .dir(
                project.getTasks()

    private
    val JApiClass.kotlinSourceFilePath: String
        get() = "$packagePath/$bytecodeSourceFilename"

    private
    val JApiClass.bytecodeSourceFilename: String
        get() = newClass.orElse(null)?.classFile?.getAttribute("SourceFile")?.let { it as? SourceFileAttribute }?.fileName
            ?: error("Bytecode for $fullyQualifiedName is missing the 'SourceFile' attribute")

  public void testAdd_supportedNullPresent() {
    E[] array = createArrayWithNullElement();
    collection = getSubjectGenerator().create(array);
    assertFalse("add(nullPresent) should return false", getSet().add(null));
    expectContents(array);
  }

  /**
   * Returns the {@link Method} instance for {@link #testAdd_supportedNullPresent()} so that tests

   */
  N adjacentNode(E edge);

  /**
   * Remove {@code edge} from the set of incoming edges. Returns the former predecessor node.
   *
   * <p>In the undirected case, returns {@code null} if {@code isSelfLoop} is true.
   */
  @CanIgnoreReturnValue
  @Nullable N removeInEdge(E edge, boolean isSelfLoop);

  /** Remove {@code edge} from the set of outgoing edges. Returns the former successor node. */

  /** Adds the most recently logged record to our list. */
  @Override
  public void publish(@Nullable LogRecord record) {
    synchronized (lock) {
      if (record != null) {
        list.add(record);
      }
    }
  }

  @Override
  public void flush() {}

  @Override
  public void close() {}

  public void clear() {
    synchronized (lock) {

  @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})
  @CollectionSize.Require(absent = ZERO)
  public void testPutDuplicateValue_null() {
    initMultimapWithNullValue();
    assertFalse(multimap().put(getKeyForNullValue(), null));
    expectContents(createArrayWithNullValue());
  }