Class<?> abstractFutureStateClass = classLoader.loadClass(AbstractFutureState.class.getName());
    Method helperMethod = abstractFutureStateClass.getDeclaredMethod("atomicHelperTypeForTest");
    helperMethod.setAccessible(true);
    assertThat(helperMethod.invoke(null)).isEqualTo(expectedHelperClassName);
  }

  private static ClassLoader getClassLoader(Set<String> disallowedClassNames) {

    Class<?> sepFrqSystemLoaderC =
        sepLoader.loadClass(FinalizableReferenceQueue.SystemLoader.class.getName());
    Field disabled = sepFrqSystemLoaderC.getDeclaredField("disabled");
    disabled.setAccessible(true);
    disabled.set(null, true);

    // Now make a parallel FRQ and an associated FinalizableWeakReference to an object, in order to
    // exercise some classes from the parallel ClassLoader.

    checkNotNull(wrapperFunction);
    checkArgument(interfaceType.isInterface(), "%s isn't an interface", interfaceType);
    Method[] methods = getMostConcreteMethods(interfaceType);
    AccessibleObject.setAccessible(methods, true);
    for (Method method : methods) {
      // Interfaces can have default methods that aren't abstract.
      // No need to verify them.
      // Can't check isDefault() for Android compatibility.

    public void test_toLowerCase_privateMethod() throws Exception {
        // Test private method using reflection
        Method method = KeyMatchHelper.class.getDeclaredMethod("toLowerCase", String.class);
        method.setAccessible(true);

        String result = (String) method.invoke(keyMatchHelper, "JAVA");
        assertEquals("java", result);

        result = (String) method.invoke(keyMatchHelper, "Mixed_Case");

        // ## Test that protected constructor can be accessed via reflection ##

        // ## Act ##
        final Constructor<Curl> constructor = Curl.class.getDeclaredConstructor();
        constructor.setAccessible(true);
        final Curl instance = constructor.newInstance();

        // ## Assert ##
        assertNotNull(instance);
    }

    @Test
    public void test_TraceMethodInEnum() {

            @Override
            public Unsafe run() throws Exception {
              Class<Unsafe> k = Unsafe.class;
              for (Field f : k.getDeclaredFields()) {
                f.setAccessible(true);
                Object x = f.get(null);
                if (k.isInstance(x)) return k.cast(x);
              }
              throw new NoSuchFieldError("the Unsafe");
            }
          });

        // Package-private setter for attempt number
        try {
            java.lang.reflect.Field field = SmbOperationException.class.getDeclaredField("attemptNumber");
            field.setAccessible(true);
            field.set(this, attemptNumber);
        } catch (Exception e) {
            // Ignore
        }
    }

    private static String formatMessage(ErrorCode errorCode, String message) {

                java.lang.reflect.Field propField =
                        org.lastaflute.core.direction.ObjectiveConfig.class.getDeclaredField("_javaPropertiesResult");
                propField.setAccessible(true);

                // Create a mock JavaPropertiesResult
                java.util.Properties props = new java.util.Properties();
                props.setProperty("job.max.crawler.processes", "5");

       */
      return null;
    }
    try {
      Field inheritableThreadLocals = Thread.class.getDeclaredField("inheritableThreadLocals");
      inheritableThreadLocals.setAccessible(true);
      return inheritableThreadLocals;
    } catch (Throwable t) {
      logger.log(
          Level.INFO,
          "Couldn't access Thread.inheritableThreadLocals. Reference finalizer threads will "

        // Force internal field to null via reflection to exercise defensive branch
        Field field = SecurityBlob.class.getDeclaredField("b");
        field.setAccessible(true);
        field.set(blob, null);

        // Act & Assert
        assertEquals(0, blob.length(), "length() should return 0 when internal array is null");
    }

    @Spy