return false;
    }
    N nodeU = endpoints.nodeU();
    N nodeV = endpoints.nodeV();
    return nodes().contains(nodeU) && successors(nodeU).contains(nodeV);
  }

  /**
   * Throws {@code IllegalArgumentException} if the ordering of {@code endpoints} is not compatible
   * with the directionality of this graph.
   */
  protected final void validateEndpoints(EndpointPair<?> endpoints) {
    checkNotNull(endpoints);

  // SPI methods (what subclasses must implement)

  /**
   * Returns a representation of {@code a} as an instance of type {@code B}. If {@code a} cannot be
   * converted, an unchecked exception (such as {@link IllegalArgumentException}) should be thrown.
   *
   * @param a the instance to convert; will never be null
   * @return the converted instance; <b>must not</b> be null
   */
  @ForOverride
  protected abstract B doForward(A a);

     * This is the last subauthority identifier
     *
     * @return the RID
     */
    @Override
    public int getRid() {
        if (getType() == SID_TYPE_DOMAIN) {
            throw new IllegalArgumentException("This SID is a domain sid");
        }
        return this.sub_authority[this.sub_authority_count - 1];
    }

    @Override
    public int getType() {
        if (this.origin_server != null) {

            byte[] largeData = new byte[1000];
            request.setData(largeData, 0, largeData.length);

            byte[] smallBuffer = new byte[100];

            IllegalArgumentException exception =
                    assertThrows(IllegalArgumentException.class, () -> request.writeBytesWireFormat(smallBuffer, 0));

            assertTrue(exception.getMessage().contains("Data exceeds buffer size"));
        }

        @Test

        assertNull(exception.getCause());
    }

    public void test_constructorWithNullMessageAndValidCause() {
        // Test constructor with null message and valid cause
        Throwable cause = new IllegalArgumentException("Invalid argument");
        GsaConfigException exception = new GsaConfigException(null, cause);

        assertNotNull(exception);
        assertNull(exception.getMessage());

            navigableMap.subMap(entries.get(i).getKey(), entries.get(j).getKey()).entrySet());
      }
    }
  }

  @CollectionSize.Require(SEVERAL)
  public void testSubMapIllegal() {
    assertThrows(IllegalArgumentException.class, () -> navigableMap.subMap(c.getKey(), a.getKey()));
  }

  @CollectionSize.Require(absent = ZERO)
  public void testOrderedByComparator() {

   * @return a new, empty {@code ObjectCountLinkedHashMap} with enough capacity to hold {@code
   *     expectedSize} elements without resizing
   * @throws IllegalArgumentException if {@code expectedSize} is negative
   */
  static <K extends @Nullable Object> ObjectCountLinkedHashMap<K> createWithExpectedSize(
      int expectedSize) {
    return new ObjectCountLinkedHashMap<K>(expectedSize);

   * <p><b>Java 8+ users:</b> the {@code Stream} equivalent to this method is {@code
   * stream.collect(MoreCollectors.onlyElement())}.
   *
   * @throws NoSuchElementException if the iterable is empty
   * @throws IllegalArgumentException if the iterable contains multiple elements
   */
  @ParametricNullness
  public static <T extends @Nullable Object> T getOnlyElement(Iterable<T> iterable) {
    return Iterators.getOnlyElement(iterable.iterator());

     * </p>
     *
     * @param value the object to be converted to a list of strings
     * @return a list of strings representing the given object
     * @throws IllegalArgumentException if the object is not a string or a list
     */
    public static List<String> getAsList(final Object value) {
        if (value == null) {
            return new ArrayList<>();
        }

  }

  public void testBuilderAddCopiesIllegal() {
    ImmutableMultiset.Builder<String> builder = ImmutableMultiset.builder();
    assertThrows(IllegalArgumentException.class, () -> builder.addCopies("a", -2));
  }

  public void testBuilderSetCountHandlesNullsCorrectly() {
    ImmutableMultiset.Builder<String> builder = ImmutableMultiset.builder();