/** Clears the reference queues used by this segment, if any. */
    void maybeClearReferenceQueues() {}

    /** Sets the value of the given {@code entry}. */
    void setValue(E entry, V value) {
      this.map.entryHelper.setValue(self(), entry, value);
    }

    /** Returns a copy of the given {@code entry}. */
    @Nullable E copyEntry(E original, E newNext) {

    }

    @Override
    public void add(Entry<K, V> e) {
      throw new UnsupportedOperationException();
    }

    void setValue(@ParametricNullness V value) {
      checkState(current != null);
      current.setValue(value);
    }
  }

  /** An {@code Iterator} over distinct keys in key head order. */
  private final class DistinctKeyIterator implements Iterator<K> {

    }

    @Test
    public void test_register_complexObject() {
        RenderData data = new RenderData();

        ComplexObject obj = new ComplexObject();
        obj.setValue("complex value");

        RenderDataUtil.register(data, "complex", obj);

        Object result = data.getDataMap().get("complex");
        assertEquals(obj, result); // Non-entity objects are registered as-is

     * @return The value
     */
    public T getValue() {
        return value;
    }

    /**
     * Sets the value.
     *
     * @param value
     *            The value
     */
    public void setValue(final T value) {
        this.value = value;
    }

    @Override
    public String toString() {
        return value.toString();
    }

        for (final LabelType labelType : labelTypeList) {
            final LabelTypeItem item = new LabelTypeItem();
            item.setLabel(labelType.getName());
            item.setValue(labelType.getValue());
            item.setPermissions(labelType.getPermissions());
            item.setVirtualHost(labelType.getVirtualHost());
            item.setLocale(labelType.getLocale());

  @Override
  @ParametricNullness
  public abstract K getKey();

  @Override
  @ParametricNullness
  public abstract V getValue();

  @Override
  @ParametricNullness
  public V setValue(@ParametricNullness V value) {
    throw new UnsupportedOperationException();
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object instanceof Entry) {

  @Override
  @ParametricNullness
  public abstract K getKey();

  @Override
  @ParametricNullness
  public abstract V getValue();

  @Override
  @ParametricNullness
  public V setValue(@ParametricNullness V value) {
    throw new UnsupportedOperationException();
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object instanceof Entry) {

                      return new Entry<String, String>() {

                        @Override
                        public String setValue(String value) {
                          checkNotNull(value);
                          return next.setValue(value);
                        }

                        @Override
                        public String getValue() {

    }

    @Override
    public int hashCode() {
      assertTrue(Thread.holdsLock(mutex));
      return super.hashCode();
    }

    @Override
    public V setValue(V value) {
      assertTrue(Thread.holdsLock(mutex));
      return super.setValue(value);
    }

    private static final long serialVersionUID = 0;
  }

  static class TestMap<K, V> extends SynchronizedMapTest.TestMap<K, V>

    }

    @Override
    @ParametricNullness
    public K setValue(@ParametricNullness K value) {
      K obverseKey = value;
      updateIndex();
      if (index == ABSENT) {
        obverse.putInverse(obverseValue, obverseKey, false);
        return unsafeNull(); // see EntryForKey.setValue()
      }
      K oldObverseKey =