}
  }

  @Override
  public boolean containsKey(@CheckForNull Object key) {
    return asMap().get(key) != null;
  }

  @Override
  public Collection<V> removeAll(@CheckForNull Object key) {
    return MoreObjects.firstNonNull(asMap().remove(key), unmodifiableEmptyCollection());
  }

  Collection<V> unmodifiableEmptyCollection() {

    @Override
    public int size() {
      assertTrue(Thread.holdsLock(mutex));
      return delegate.size();
    }

    @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();
    }

        where:
        description                                | code
        "TaskContainer.remove(Object)"             | "tasks.remove(foo)"
        "TaskContainer.removeAll(Collection)"      | "tasks.removeAll([foo])"
        "TaskContainer.clear()"                    | "tasks.clear()"
        "TaskContainer.retainAll(Collection)"      | "tasks.retainAll([foo])"

	"os"
	"path/filepath"
	"regexp"
	"strings"
	"testing"
)

func TestTempFile(t *testing.T) {
	dir, err := TempDir("", "TestTempFile_BadDir")
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(dir)

	nonexistentDir := filepath.Join(dir, "_not_exists_")
	f, err := TempFile(nonexistentDir, "foo")
	if f != nil || err == nil {
		t.Errorf("TempFile(%q, `foo`) = %v, %v", nonexistentDir, f, err)
	}
}

  }

  /**
   * A sensible definition of {@link #removeAll} in terms of {@link #iterator}, using the iterator's
   * {@code remove} method. If you override {@link #iterator}, you may wish to override {@link
   * #removeAll} to forward to this implementation.
   *
   * @since 7.0
   */
  protected boolean standardRemoveAll(Collection<?> collection) {
    return Iterators.removeAll(iterator(), collection);
  }

  /**

  }

  /**
   * A sensible definition of {@link #removeAll} in terms of {@link #iterator}, using the iterator's
   * {@code remove} method. If you override {@link #iterator}, you may wish to override {@link
   * #removeAll} to forward to this implementation.
   *
   * @since 7.0
   */
  protected boolean standardRemoveAll(Collection<?> collection) {
    return Iterators.removeAll(iterator(), collection);
  }

  /**

    @OverridingMethodsMustInvokeSuper
    public Iterable<Node> getAllSuccessors() {
        return getHardSuccessors();
    }

    /**
     * Returns all the nodes which are hard successors, i.e. which have a non-removable relationship to the current node.
     *
     * For example, for tasks `shouldRunAfter` isn't a hard successor while `mustRunAfter` is.
     */
    @OverridingMethodsMustInvokeSuper

        if (otherGroupName != null && groups.keySet().contains(DEFAULT_GROUP)) {
            groups.putAll(otherGroupName, groups.removeAll(DEFAULT_GROUP));
        }
        if (groups.keySet().contains(DEFAULT_GROUP) && groups.keySet().size() > 1) {
            groups.putAll(OTHER_GROUP, groups.removeAll(DEFAULT_GROUP));
        }
        return new DefaultGroupTaskReportModel(groups);
    }

  }

  @Override
  public Set<V> get(@ParametricNullness K key) {
    return (Set<V>) super.get(key);
  }

  @Override
  public Set<V> removeAll(@CheckForNull Object key) {
    return (Set<V>) super.removeAll(key);
  }

  @Override
  public Set<V> replaceValues(@ParametricNullness K key, Iterable<? extends V> values) {
    return (Set<V>) super.replaceValues(key, values);
  }

  }

  /** Confirm that removeAll() returns a List implementing RandomAccess. */
  public void testRemoveAllRandomAccess() {
    Multimap<String, Integer> multimap = create();
    multimap.put("foo", 1);
    multimap.put("foo", 3);
    assertTrue(multimap.removeAll("foo") instanceof RandomAccess);
    assertTrue(multimap.removeAll("bar") instanceof RandomAccess);
  }