*/
  @CanIgnoreReturnValue
  public static UnsignedLong valueOf(BigInteger value) {
    checkNotNull(value);
    checkArgument(
        value.signum() >= 0 && value.bitLength() <= Long.SIZE,
        "value (%s) is outside the range for an unsigned long value",
        value);
    return fromLongBits(value.longValue());
  }

  /**

   */
  @CanIgnoreReturnValue
  public static UnsignedLong valueOf(BigInteger value) {
    checkNotNull(value);
    checkArgument(
        value.signum() >= 0 && value.bitLength() <= Long.SIZE,
        "value (%s) is outside the range for an unsigned long value",
        value);
    return fromLongBits(value.longValue());
  }

  /**

    }
  }

  static char[] randomChars(Random rand, int size) {
    Set<Character> chars = new HashSet<>(size);
    for (int i = 0; i < size; i++) {
      char c;
      do {
        c = (char) rand.nextInt(Character.MAX_VALUE - Character.MIN_VALUE + 1);
      } while (chars.contains(c));
      chars.add(c);
    }
    char[] retValue = new char[chars.size()];
    int i = 0;
    for (char c : chars) {

  }

  public void testSize0() {
    Iterator<String> iterator = emptyIterator();
    assertEquals(0, Iterators.size(iterator));
  }

  public void testSize1() {
    Iterator<Integer> iterator = singleton(0).iterator();
    assertEquals(1, Iterators.size(iterator));
  }

  public void testSize_partiallyConsumed() {
    Iterator<Integer> iterator = asList(1, 2, 3, 4, 5).iterator();

    // -------------------------------------------------------------------------------------------
    public MetadataTreeNode getClasspathAsTree() throws MetadataResolutionException {
        if (classpath == null || classpath.size() < 1) {
            return null;
        }

        MetadataTreeNode tree = null;
        MetadataTreeNode parent = null;

        for (ArtifactMetadata md : classpath) {

        def parent = sibling.parentNode
        def next = sibling.nextSibling
        builder.elements.each { element ->
            parent.insertBefore(element, next)
        }
        return builder.elements.size() == 1 ? builder.elements[0] : builder.elements
    }

                        list.add(line);
                    }
                    if (outputCallback != null) {
                        outputCallback.accept(line);
                    }
                    if (list.size() > bufferSize) {
                        list.remove(0);
                    }
                }
            } catch (final Exception e) {
                running = false;
                if (logger.isDebugEnabled()) {

  @MapFeature.Require(SUPPORTS_PUT)
  @CollectionSize.Require(absent = ZERO)
  public void testPutDuplicateValuePreservesSize() {
    assertFalse(multimap().put(k0(), v0()));
    assertEquals(getNumElements(), multimap().size());
  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testPutDuplicateValue() {
    List<Entry<K, V>> entries = copyToList(multimap().entries());

    for (Entry<K, V> entry : entries) {

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testClear() {
    collection.clear();
    assertTrue("After clear(), a collection should be empty.", collection.isEmpty());
    assertEquals(0, collection.size());
    assertFalse(collection.iterator().hasNext());
  }

  @CollectionFeature.Require(absent = SUPPORTS_REMOVE)
  @CollectionSize.Require(absent = ZERO)
  public void testClear_unsupported() {

        .testEquals();
  }

  public void testToString() {
    assertEquals("{}", INSTANCE.toString());
  }

  public void testSize() {
    assertEquals(0, INSTANCE.size());
  }

  public void testGet() {
    assertNull(INSTANCE.get('a', 1));
  }

  public void testIsEmpty() {
    assertTrue(INSTANCE.isEmpty());
  }

  public void testCellSet() {