public void testClear() {
    table = create("foo", 1, 'a', "bar", 1, 'b', "foo", 3, 'c');
    if (supportsRemove()) {
      table.clear();
      assertEquals(0, table.size());
      assertFalse(table.containsRow("foo"));
    } else {
      assertThrows(UnsupportedOperationException.class, () -> table.clear());
    }
  }

  public void testPut() {
    assertNull(table.put("foo", 1, cellValue('a')));

        Predicates.<Entry<K, V>>and(
            multimap.entryPredicate(), Maps.<V>valuePredicateOnEntries(not(Predicates.in(c)))));
  }

  @Override
  public void clear() {
    multimap.clear();
  }

                try {
                    final int sessionIdListSize = finishedSessionIdList.size();
                    intervalControlHelper.setCrawlerRunning(true);

                    docList.clear();
                    accessResultList.clear();

                    updateTime = systemHelper.getCurrentTimeAsLong() - updateTime;

                    final long interval = updateInterval - updateTime;

   * a black-box test that tries to create lots of different thread-interleavings, and asserts that
   * each computation is affected by a call to {@code clear()} (and therefore gets passed to the
   * removal listener), or else is not affected by the {@code clear()} (and therefore exists in the
   * cache afterward).
   */
  @GwtIncompatible // QueuingRemovalListener

    public boolean containsValue(@Nullable Object value) {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.containsValue(value);
    }

    @Override
    public void clear() {
      assertTrue(Thread.holdsLock(mutex));
      delegate.clear();
    }

    @Override
    public Collection<V> values() {
      assertTrue(Thread.holdsLock(mutex));
      /* TODO: verify that the Collection is also synchronized? */

        assertThat(list.remove("1"), is(true));
        assertThat(list.remove(null), is(true));
        list.clear();
        list.addLast("1");
        list.addLast("2");
        list.addLast("3");
        list.remove(1);
        assertThat(list.get(0), is("1"));
        assertThat(list.get(1), is("3"));

        list.clear();
        list.addLast("1");
        list.addLast("2");
        list.addLast("3");

    assertEquals(1, segment.count);
    assertSame(newValue, segment.get(key, hash));

    // cleared
    segment.setWeakValueReferenceForTesting(entry, oldValueRef);
    oldValueRef.clear();
    assertFalse(segment.replace(key, hash, oldValue, newValue));
    assertEquals(0, segment.count);
    assertNull(segment.get(key, hash));
  }

  public void testSegmentReplace() {

    assertEquals(1, segment.count);
    assertSame(newValue, segment.get(key, hash));

    // cleared
    segment.setWeakValueReferenceForTesting(entry, oldValueRef);
    oldValueRef.clear();
    assertFalse(segment.replace(key, hash, oldValue, newValue));
    assertEquals(0, segment.count);
    assertNull(segment.get(key, hash));
  }

  public void testSegmentReplace() {

  @Override
  protected abstract Table<R, C, V> delegate();

  @Override
  public Set<Cell<R, C, V>> cellSet() {
    return delegate().cellSet();
  }

  @Override
  public void clear() {
    delegate().clear();
  }

  @Override
  public Map<R, V> column(@ParametricNullness C columnKey) {
    return delegate().column(columnKey);
  }

  @Override
  public Set<C> columnKeySet() {

      this.fromCollection = checkNotNull(fromCollection);
      this.function = checkNotNull(function);
    }

    @Override
    public void clear() {
      fromCollection.clear();
    }

    @Override
    public boolean isEmpty() {
      return fromCollection.isEmpty();
    }

    @Override
    public Iterator<T> iterator() {