assertGoodFeatureEnum(CollectionSize.class);
    assertGoodFeatureEnum(MapFeature.class);
  }

  private static String rootLocaleFormat(String format, Object... args) {
    return String.format(Locale.ROOT, format, args);
  }

      this.delegate = checkNotNull(delegate);
    }

    @Override
    protected Object handleInvocation(Object proxy, Method method, Object[] args) throws Throwable {
      return method.invoke(delegate, args);
    }

    @Override
    public String toString() {
      return "some arbitrary string";
    }
  }

          @Override
          @CheckForNull
          public Object invoke(Object obj, Method method, @CheckForNull @Nullable Object[] args)
              throws Throwable {
            Callable<@Nullable Object> callable =
                () -> {
                  try {
                    return method.invoke(target, args);
                  } catch (InvocationTargetException e) {
                    throw throwCause(e, false /* combineStackTraces */);

 * iterator generator may delegate the work of creating the underlying collection to an inner
 * collection generator.
 *
 * <p>{@code GwtTestSuiteGenerator} expects every {@code DerivedIterator} implementation to provide
 * a one-arg constructor accepting its inner generator as an argument. This requirement enables it
 * to generate source code (since GWT cannot use reflection to generate the suites).
 *
 * @author Chris Povirk
 */
@GwtCompatible

    // Test simple escape of '&'.
    assertEquals("foo&bar", htmlEscaper().escape("foo&bar"));

    // If the string contains no escapes, it should return the arg.
    // Note: assert<b>Same</b> for this implementation.
    String s = "blah blah farhvergnugen";
    assertSame(s, htmlEscaper().escape(s));

    // Tests escapes at begin and end of string.

 * This class is emulated in GWT.
 *
 * @author Hayward Chan
 */
@GwtCompatible
final class Platform {

  /** Format the template with args, only supports the placeholder {@code %s}. */
  static String format(String template, Object... args) {
    return String.format(Locale.ROOT, template, args);
  }

  /** See {@link ListListIteratorTester} */
  static int listListIteratorTesterNumIterations() {
    return 4;
  }

    npTester.testAllPublicStaticMethods(ThreadFactoryBuilder.class);
    npTester.testAllPublicInstanceMethods(builder);
  }

  private static String rootLocaleFormat(String format, Object... args) {
    return String.format(Locale.ROOT, format, args);
  }

          thread.setUncaughtExceptionHandler(uncaughtExceptionHandler);
        }
        return thread;
      }
    };
  }

  private static String format(String format, Object... args) {
    return String.format(Locale.ROOT, format, args);
  }

 * iterator generator may delegate the work of creating the underlying collection to an inner
 * collection generator.
 *
 * <p>{@code GwtTestSuiteGenerator} expects every {@code DerivedIterator} implementation to provide
 * a one-arg constructor accepting its inner generator as an argument. This requirement enables it
 * to generate source code (since GWT cannot use reflection to generate the suites).
 *
 * @author Chris Povirk
 */
@GwtCompatible

  }

  @Override
  @J2ktIncompatible // Incompatible return type change. Use inherited implementation
  public Object[] toArray() {
    /*
     * If we could, we'd declare the no-arg `Collection.toArray()` to return "Object[] but elements
     * have the same nullness as E." Since we can't, we declare it to return nullable elements, and