}
    constructor.setAccessible(true); // accessibility check is too slow
    try {
      return constructor.newInstance();
    } catch (InstantiationException | IllegalAccessException impossible) {
      throw new AssertionError(impossible);
    } catch (InvocationTargetException e) {
      logger.log(Level.WARNING, "Exception while invoking default constructor.", e.getCause());
      return arbitraryConstantInstanceOrNull(type);

 *
 * <p>HTML escaping is particularly tricky: For example, <a
 * href="https://www.w3.org/TR/html4/types.html#h-6.2">some elements' text contents must not be HTML
 * escaped</a>. As a result, it is impossible to escape an HTML document correctly without
 * domain-specific knowledge beyond what {@code HtmlEscapers} provides. We strongly encourage the
 * use of HTML templating systems.
 *
 * @author Sven Mawson
 * @author David Beaumont

 * thought of as overkill; however, it's difficult to determine which proper subset of this massive
 * set would be sufficient to expose any possible bug. Brute force is simpler.
 *
 * <p>To use this class the concrete subclass must implement the {@link
 * IteratorTester#newTargetIterator()} method. This is because it's impossible to test an Iterator
 * without changing its state, so the tester needs a steady supply of fresh Iterators.
 *

      if (UPDATE_BB != null) {
        try {
          UPDATE_BB.invokeExact(cs, bb);
        } catch (Throwable e) {
          throwIfUnchecked(e);
          // This should be impossible, since `update` has no `throws` clause.
          throw new UndeclaredThrowableException(e);
        }
        return true;
      } else {
        return false;
      }
    }

      // The JELLY_BEAN field doesn't exist because we're running on a version before Jelly Bean :)
      return new ThrowingCreator();
    } catch (ClassNotFoundException e) {
      // Should be impossible, but we want to return *something* so that class init succeeds.
      return new ThrowingCreator();
    } catch (IllegalAccessException e) {
      // ditto
      return new ThrowingCreator();
    }

    boolean threadStarted = false;
    try {
      startFinalizer.invoke(null, FinalizableReference.class, queue, frqRef);
      threadStarted = true;
    } catch (IllegalAccessException impossible) {
      throw new AssertionError(impossible); // startFinalizer() is public
    } catch (Throwable t) {
      logger.log(
          Level.INFO,
          "Failed to start reference finalizer thread."

  @Override
  public final void run() {
    /*
     * Set runner thread before checking isDone(). If we were to check isDone() first, the task
     * might be cancelled before we set the runner thread. That would make it impossible to
     * interrupt, yet it will still run, since interruptTask will leave the runner value null,
     * allowing the CAS below to succeed.
     */
    Thread currentThread = Thread.currentThread();

 *
 * <p>Occasionally, an API will return a plain {@code Future} and it will be impossible to change
 * the return type. For this case, we provide a more expensive workaround in {@code
 * JdkFutureAdapters}. However, when possible, it is more efficient and reliable to create a {@code
 * ListenableFuture} directly.
 *
 * @author Sven Mawson
 * @author Nishant Thakkar

	ErrAdvanceTooFar   = errors.New("bufio.Scanner: SplitFunc returns advance count beyond input")
	ErrBadReadCount    = errors.New("bufio.Scanner: Read returned impossible count")
)

const (
	// MaxScanTokenSize is the maximum size used to buffer a token
	// unless the user provides an explicit buffer with [Scanner.Buffer].
	// The actual maximum token size may be smaller as the buffer

 *
 * <p>Occasionally, an API will return a plain {@code Future} and it will be impossible to change
 * the return type. For this case, we provide a more expensive workaround in {@code
 * JdkFutureAdapters}. However, when possible, it is more efficient and reliable to create a {@code
 * ListenableFuture} directly.
 *
 * @author Sven Mawson
 * @author Nishant Thakkar