parser.parse(new InputSource(is));
        return parser.getDocument();
    }

    private String getXmlString(final Node node) throws Exception {
        final TransformerFactory tf = TransformerFactory.newInstance();
        final javax.xml.transform.Transformer transformer = tf.newTransformer();
        transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
        transformer.setOutputProperty(OutputKeys.INDENT, "no");

      @Override
      public void handlePotentialDeadlock(PotentialDeadlockException e) {}
    };
  }

  /** Creates a new factory with the specified policy. */
  public static CycleDetectingLockFactory newInstance(Policy policy) {
    return new CycleDetectingLockFactory(policy);
  }

  /** Equivalent to {@code newReentrantLock(lockName, false)}. */
  public ReentrantLock newReentrantLock(String lockName) {

   * @param iterable the iterable to copy
   * @param type the type of the elements
   * @return a newly-allocated array into which all the elements of the iterable have been copied
   */
  @GwtIncompatible // Array.newInstance(Class, int)
  public static <T extends @Nullable Object> T[] toArray(
      Iterable<? extends T> iterable, Class<@NonNull T> type) {
    return toArray(iterable, ObjectArrays.newArray(type, 0));
  }

   * @param iterator the iterator to copy
   * @param type the type of the elements
   * @return a newly-allocated array into which all the elements of the iterator have been copied
   */
  @GwtIncompatible // Array.newInstance(Class, int)
  public static <T extends @Nullable Object> T[] toArray(
      Iterator<? extends T> iterator, Class<@NonNull T> type) {
    List<T> list = Lists.newArrayList(iterator);