* we read one of the fields declared in that class.
                 */
                Set<Integer> unused = graph.successors(first);
                return null; // so the lambda is a Callable to propagate checked await() exceptions
              }));
    }

    // For more about this test, see the equivalent in AbstractNetworkTest.
    for (Future<?> future : futures.build()) {
      future.get();
    }

   */
  private WeakReference<?> doTestClassUnloading() throws Exception {
    URLClassLoader shadowLoader = new URLClassLoader(parseJavaClassPath(), null);
    @SuppressWarnings("unchecked")
    Class<WillBeUnloadedException> shadowClass =
        (Class<WillBeUnloadedException>)
            Class.forName(WillBeUnloadedException.class.getName(), false, shadowLoader);

   *
   * @param type the component type
   * @param length the length of the new array
   */
  @GwtIncompatible // Array.newInstance(Class, int)
  @SuppressWarnings("unchecked")
  public static <T extends @Nullable Object> T[] newArray(Class<@NonNull T> type, int length) {
    return (T[]) Array.newInstance(type, length);
  }

  /**

   */
  private WeakReference<?> doTestClassUnloading() throws Exception {
    URLClassLoader shadowLoader = new URLClassLoader(parseJavaClassPath(), null);
    @SuppressWarnings("unchecked")
    Class<WillBeUnloadedException> shadowClass =
        (Class<WillBeUnloadedException>)
            Class.forName(WillBeUnloadedException.class.getName(), false, shadowLoader);

    assertThrows(UncheckedExecutionException.class, () -> cache.getUnchecked("bar"));
    assertThat(callCount.get()).isEqualTo(2);
  }

  /**
   * On a concurrent computation that throws a checked exception, all threads should get the
   * (wrapped) exception, with the loader called only once. The result should not be cached (a later
   * request should call the loader again).
   */

 * correctly (that is, whether its <i>preconditions</i> were met).
 *
 * <p>If the precondition is not met, the {@code Preconditions} method throws an unchecked exception
 * of a specified type, which helps the method in which the exception was thrown communicate that
 * its caller has made a mistake. This allows constructs such as
 *
 * {@snippet :

They will be checked independently for each *path operation*.

## Check it { #check-it }

If you open the API docs, you can authenticate and specify which scopes you want to authorize.

<img src="/img/tutorial/security/image11.png">

     *
     * @param session the HTTP session
     * @return the result document IDs cache map
     */
    private Map<String, String[]> getResultDocIdsCache(final HttpSession session) {
        @SuppressWarnings("unchecked")
        Map<String, String[]> resultDocIdsCache = (Map<String, String[]>) session.getAttribute(Constants.RESULT_DOC_ID_CACHE);
        if (resultDocIdsCache == null) {

    @Override
    public Comparator<? super C> comparator() {
      return columnComparator();
    }

    int compare(Object a, Object b) {
      // pretend we can compare anything
      @SuppressWarnings("unchecked")
      Comparator<Object> cmp = (Comparator<Object>) comparator();
      return cmp.compare(a, b);
    }

    boolean rangeContains(@Nullable Object o) {
      return o != null

    }

    // ----------------------------------------------------------------------
    //
    // ----------------------------------------------------------------------

    @SuppressWarnings({"unchecked", "rawtypes"})
    public List<MojoDescriptor> getMojos() {
        return (List) getComponents();
    }

    public void addMojo(MojoDescriptor mojoDescriptor) throws DuplicateMojoDescriptorException {