*
   * <p><b>Warning:</b> the results of calling this method may vary depending on the iteration order
   * of {@code map}.
   *
   * @throws IllegalArgumentException if an attempt to {@code put} any entry fails. Note that some
   *     map entries may have been added to the bimap before the exception was thrown.
   */
  @Override
  void putAll(Map<? extends K, ? extends V> map);

  // Views

  /**
   * {@inheritDoc}
   *

   * converted, an unchecked exception (such as {@link IllegalArgumentException}) should be thrown.
   *
   * @param b the instance to convert; will never be null
   * @return the converted instance; <b>must not</b> be null
   * @throws UnsupportedOperationException if backward conversion is not implemented; this should be

   * this method is guaranteed to be called once the computation is complete.
   *
   * <p>Exceptions thrown by a listener will be propagated up to the executor. Any exception thrown
   * during {@code Executor.execute} (e.g., a {@code RejectedExecutionException} or an exception
   * thrown by {@linkplain MoreExecutors#directExecutor direct execution}) will be caught and
   * logged.
   *

   * this method is guaranteed to be called once the computation is complete.
   *
   * <p>Exceptions thrown by a listener will be propagated up to the executor. Any exception thrown
   * during {@code Executor.execute} (e.g., a {@code RejectedExecutionException} or an exception
   * thrown by {@linkplain MoreExecutors#directExecutor direct execution}) will be caught and
   * logged.
   *

            }
        } catch (final CrawlerSystemException e) {
            CloseableUtil.closeQuietly(responseData);
            throw e;
        } catch (final SmbException e) {
            CloseableUtil.closeQuietly(responseData);
            throw new CrawlingAccessException("Could not access " + uri, e);
        }

        return responseData;
    }

  @Test
  @SuppressWarnings("CheckReturnValue")
  public void forTree_acceptsDirectedGraph() throws Exception {
    MutableGraph<String> graph = GraphBuilder.directed().build();
    graph.putEdge("a", "b");

    Traverser.forTree(graph); // Does not throw
  }

  @Test
  public void forTree_withUndirectedGraph_throws() throws Exception {
    MutableGraph<String> graph = GraphBuilder.undirected().build();

  @Test
  @SuppressWarnings("CheckReturnValue")
  public void forTree_acceptsDirectedGraph() throws Exception {
    MutableGraph<String> graph = GraphBuilder.directed().build();
    graph.putEdge("a", "b");

    Traverser.forTree(graph); // Does not throw
  }

  @Test
  public void forTree_withUndirectedGraph_throws() throws Exception {
    MutableGraph<String> graph = GraphBuilder.undirected().build();

                if ( ( ch & 0xC0 ) != 0x80 ) {
                    throw new IOException("Invalid UTF-8 sequence");
                }
                uni[ ui ] |= ( ch & 0x3F ) << 6;
                ch = src[ si++ ] & 0xFF;
                uni[ ui ] |= ch & 0x3F;
                if ( ( ch & 0xC0 ) != 0x80 || uni[ ui ] < 0x800 ) {
                    throw new IOException("Invalid UTF-8 sequence");
                }
            }

  }

  /*
   * Tests for Predicates.alwaysFalse().
   */

  public void testAlwaysFalse_apply() throws Exception {
    assertEvalsToFalse(Predicates.alwaysFalse());
  }

  public void testAlwaysFalse_equality() throws Exception {
    new EqualsTester()
        .addEqualityGroup(FALSE, Predicates.alwaysFalse())
        .addEqualityGroup(isOdd())

    @Override
    public boolean implies(ProtectionDomain pd, Permission perm) {
      return true;
    }
  }

  private WeakReference<ClassLoader> useFrqInSeparateLoader() throws Exception {
    final ClassLoader myLoader = getClass().getClassLoader();
    URLClassLoader sepLoader = new URLClassLoader(getClassPathUrls(), myLoader.getParent());