*
   * @param arrays zero or more {@code boolean} arrays
   * @return a single array containing all the values from the source arrays, in order
   */
  public static boolean[] concat(boolean[]... arrays) {
    int length = 0;
    for (boolean[] array : arrays) {
      length += array.length;
    }
    boolean[] result = new boolean[length];
    int pos = 0;
    for (boolean[] array : arrays) {

    }

    @Override
    public boolean contains(Object object) {
      return standardContains(object);
    }

    @Override
    public boolean containsAll(Collection<?> collection) {
      return standardContainsAll(collection);
    }

    @Override
    public boolean remove(Object object) {
      return standardRemove(object);
    }

    @Override
    public boolean removeAll(Collection<?> collection) {

      }

      @Override
      public boolean contains(@CheckForNull Object obj) {
        return StandardTable.this.contains(obj, columnKey);
      }

      @Override
      public boolean remove(@CheckForNull Object obj) {
        return StandardTable.this.remove(obj, columnKey) != null;
      }

      @Override
      public boolean retainAll(final Collection<?> c) {

    @SuppressWarnings("unchecked")
    final Map<String, Boolean> map = mock(Map.class);

    Map<String, Boolean> forward =
        new ForwardingMap<String, Boolean>() {
          @Override
          protected Map<String, Boolean> delegate() {
            return map;
          }

          @Override
          public Set<Entry<String, Boolean>> entrySet() {
            return new StandardEntrySet() {

    @SuppressWarnings("unchecked")
    final Map<String, Boolean> map = mock(Map.class);

    Map<String, Boolean> forward =
        new ForwardingMap<String, Boolean>() {
          @Override
          protected Map<String, Boolean> delegate() {
            return map;
          }

          @Override
          public Set<Entry<String, Boolean>> entrySet() {
            return new StandardEntrySet() {

  public @Nullable E pollLast() {
    return delegate.pollLast();
  }

  @Override
  public boolean remove(Object object) {
    return delegate.remove(checkValid(object));
  }

  @Override
  public boolean removeAll(Collection<?> c) {
    return delegate.removeAll(c);
  }

  @Override
  public boolean retainAll(Collection<?> c) {
    return delegate.retainAll(c);
  }

  @Override

    }

    @Override
    public boolean removeAll(Collection<?> collection) {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.removeAll(collection);
    }

    @Override
    public boolean isEmpty() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.isEmpty();
    }

    @Override
    public boolean contains(Object object) {

  /** See {@link java.lang.reflect.AccessibleObject#setAccessible(boolean)}. */
  public final void setAccessible(boolean flag) {
    accessibleObject.setAccessible(flag);
  }

  /** See {@link java.lang.reflect.AccessibleObject#trySetAccessible()}. */
  @SuppressWarnings("CatchingUnchecked") // sneaky checked exception
  public final boolean trySetAccessible() {

    forward =
        new ForwardingCache<String, Boolean>() {
          @Override
          protected Cache<String, Boolean> delegate() {
            return mock;
          }
        };
  }

  public void testGetIfPresent() throws ExecutionException {
    when(mock.getIfPresent("key")).thenReturn(Boolean.TRUE);
    assertSame(Boolean.TRUE, forward.getIfPresent("key"));
  }

    delegate().clear();
  }

  @Override
  public boolean containsEntry(@CheckForNull Object key, @CheckForNull Object value) {
    return delegate().containsEntry(key, value);
  }

  @Override
  public boolean containsKey(@CheckForNull Object key) {
    return delegate().containsKey(key);
  }

  @Override
  public boolean containsValue(@CheckForNull Object value) {
    return delegate().containsValue(value);