public abstract TypeVariable<?>[] getTypeParameters();

  /** See {@link java.lang.reflect.AccessibleObject#setAccessible(boolean)}. */
  public final void setAccessible(boolean flag) {
    accessibleObject.setAccessible(flag);
  }

  /** See {@link java.lang.reflect.AccessibleObject#trySetAccessible()}. */
  @SuppressWarnings("CatchingUnchecked") // sneaky checked exception

        currentFormField.setAccessible(true);
        currentFormField.set(action, form);

        // Set fessConfig via reflection
        final java.lang.reflect.Field fessConfigField = findField(action.getClass(), "fessConfig");
        fessConfigField.setAccessible(true);
        fessConfigField.set(action, ComponentUtil.getFessConfig());

        Field runningField = Crawler.class.getDeclaredField("running");
        runningField.setAccessible(true);
        ((AtomicBoolean) runningField.get(null)).set(false);

        Field errorsField = Crawler.class.getDeclaredField("errors");
        errorsField.setAccessible(true);
        ((Queue<?>) errorsField.get(null)).clear();
    }

    // Test addError method
    @Test

        // Setup mock components
        setupMockComponents();

        Method processMethod = ThumbnailGenerator.class.getDeclaredMethod("process", ThumbnailGenerator.Options.class);
        processMethod.setAccessible(true);

        try {
            Integer result = (Integer) processMethod.invoke(null, options);
            assertNotNull(result);
            assertEquals(1, result.intValue());
        } catch (Exception e) {

                // Use reflection to call private method
                try {
                    Method method = FessCurtainFinallyHook.class.getDeclaredMethod("shutdownCommonsHttpClient");
                    method.setAccessible(true);
                    method.invoke(this);
                } catch (Exception e) {
                    // Expected to catch exception silently
                }
            }
        };

            systemHelperField.setAccessible(true);
            systemHelperField.set(null, null);

            java.lang.reflect.Field indexingHelperField = ComponentUtil.class.getDeclaredField("indexingHelper");
            indexingHelperField.setAccessible(true);
            indexingHelperField.set(null, null);

        responseField.setAccessible(true);
        final Object response = responseField.get(apiResult);
        assertTrue(response instanceof ApiStartJobResponse);

        final Field jobLogIdField = ApiStartJobResponse.class.getDeclaredField("jobLogId");
        jobLogIdField.setAccessible(true);
        return (String) jobLogIdField.get(response);
    }

        dataIndexHelper.setCrawlingExecutionInterval(interval);

        try {
            Field field = DataIndexHelper.class.getDeclaredField("crawlingExecutionInterval");
            field.setAccessible(true);
            long actualInterval = (Long) field.get(dataIndexHelper);
            assertEquals(interval, actualInterval);
        } catch (Exception e) {

        final CoordinatorHelper helper = new CoordinatorHelper();
        try {
            final Field field = CoordinatorHelper.class.getDeclaredField("instanceId");
            field.setAccessible(true);
            field.set(helper, testInstanceId);
        } catch (final Exception e) {
            throw new RuntimeException(e);
        }
        return helper;
    }

@J2ktIncompatible
final class ForwardingObjectTester {

  private static final Method DELEGATE_METHOD;

  static {
    try {
      DELEGATE_METHOD = ForwardingObject.class.getDeclaredMethod("delegate");
      DELEGATE_METHOD.setAccessible(true);
    } catch (SecurityException e) {
      throw new RuntimeException(e);
    } catch (NoSuchMethodException e) {
      throw new AssertionError(e);
    }
  }

  /**