Examples of java.lang.reflect.AccessibleObject

java.lang.reflect.AccessibleObject
The AccessibleObject class is the base class for Field, Method and Constructor objects. It provides the ability to flag a reflected object as suppressing default Java language access control checks when it is used. The access checks--for public, default (package) access, protected, and private members--are performed when Fields, Methods or Constructors are used to set or get fields, to invoke methods, or to create and initialize new instances of classes, respectively.
Setting the accessible flag in a reflected object permits sophisticated applications with sufficient privilege, such as Java Object Serialization or other persistence mechanisms, to manipulate objects in a manner that would normally be prohibited. @see Field @see Method @see Constructor @see ReflectPermission @since 1.2

        Class<?>[] argClasses = new Class<?>[arguments.length];
        for(int i = 0; i < arguments.length; i++) {
            argClasses[i] = (arguments[i] == null) ? null : arguments[i].getClass();
        }


        AccessibleObject m = null;
        if (target instanceof Class) {
            /*
            For class methods, simluate the effect of a meta class
            by taking the union of the static methods of the
            actual class, with the instance methods of "Class.class"

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   */
  public static final AccessibleObject
  getAccessibleObject(Class cls, String name, Class[] argTypes, int flags)
  throws NoSuchMethodException {
    final AOInfo aoi = new AOInfo(cls, name, argTypes, flags);
    AccessibleObject ao = (AccessibleObject)_acsos.get(aoi);
    if (ao != null)
      return ao;


    ao = myGetAcsObj(cls, name, argTypes, flags);
    _acsos.put(aoi, ao);

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   * or method (prefixed with get).
   */
  public static final Object get(Object obj, String name)
  throws NoSuchMethodException {
    try {
      final AccessibleObject acs = Classes.getAccessibleObject(
        obj.getClass(), name, null,
        Classes.B_GET|Classes.B_PUBLIC_ONLY);
      return   acs instanceof Method ?
        ((Method)acs).invoke(obj, null): ((Field)acs).get(obj);
    } catch (NoSuchMethodException ex) {

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   * or method (prefixed with set).
   */
  public static final void set(Object obj, String name, Object val,
  boolean autoCoerce) throws NoSuchMethodException, ModificationException {
    try {
      AccessibleObject acs;
      try {
        acs = Classes.getAccessibleObject(
          obj.getClass(),
          name, new Class[] {val != null ? val.getClass(): null},
          Classes.B_SET|Classes.B_PUBLIC_ONLY);

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        instantiationGuard.setGuardedContainer(container);
        return (T) instantiationGuard.observe(getComponentImplementation());
    }


    private Object decorateComponentInstance(Parameter[] matchingParameters, ComponentMonitor componentMonitor, Object componentInstance, PicoContainer container, PicoContainer guardedContainer) {
        AccessibleObject member = null;
        Object injected[] = new Object[injectionMembers.size()];
        Object lastReturn = null;
        try {
            for (int i = 0; i < injectionMembers.size(); i++) {
                member = injectionMembers.get(i);

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      JsValueGlue.set(jsValue, classLoader, field.getType(),
          javaDispatch.getFieldValue(dispId));
      return;
    } else {
      MethodAdaptor method = javaDispatch.getMethod(dispId);
      AccessibleObject obj = method.getUnderlyingObject();
      DispatchMethod dispMethod = (DispatchMethod) classLoader.getWrapperForObject(obj);
      if (dispMethod == null) {
        dispMethod = new MethodDispatch(classLoader, method);
        classLoader.putWrapperForObject(obj, dispMethod);
      }

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    private static AnnotatedElement elementForInjectionTarget(final DeploymentUnit unit, final InjectionTarget injectionTarget) throws DeploymentUnitProcessingException {
        final Module module = unit.getAttachment(org.jboss.as.server.deployment.Attachments.MODULE);
        final DeploymentReflectionIndex deploymentReflectionIndex = unit.getAttachment(org.jboss.as.server.deployment.Attachments.REFLECTION_INDEX);
        final String injectionTargetClassName = injectionTarget.getClassName();
        final String injectionTargetName = getInjectionTargetName(injectionTarget);
        final AccessibleObject fieldOrMethod = getInjectionTarget(injectionTargetClassName, injectionTargetName, module.getClassLoader(), deploymentReflectionIndex);
        return fieldOrMethod;
    }

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        final Module module = unit.getAttachment(org.jboss.as.server.deployment.Attachments.MODULE);
        final DeploymentReflectionIndex deploymentReflectionIndex = unit.getAttachment(org.jboss.as.server.deployment.Attachments.REFLECTION_INDEX);
        final ResourceInjectionTargetMetaData injectionTarget = injectionTargets.iterator().next();
        final String injectionTargetClassName = injectionTarget.getInjectionTargetClass();
        final String injectionTargetName = injectionTarget.getInjectionTargetName();
        final AccessibleObject fieldOrMethod = getInjectionTarget(injectionTargetClassName, injectionTargetName, module.getClassLoader(), deploymentReflectionIndex);
        processAnnotatedElement(fieldOrMethod, serviceRefUMDM);
    }

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   * @tests java.lang.reflect.AccessibleObject#isAccessible()
   */
  public void test_isAccessible() throws Exception {
    // Test for method boolean
    // java.lang.reflect.AccessibleObject.isAccessible()
                AccessibleObject ao = TestClass.class.getField("aField");
                ao.setAccessible(true);
                assertTrue("Returned false to isAccessible", ao.isAccessible());
                ao.setAccessible(false);
                assertTrue("Returned true to isAccessible", !ao.isAccessible());
  }

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   */
  public void test_setAccessible$Ljava_lang_reflect_AccessibleObjectZ() throws Exception {
    // Test for method void
    // java.lang.reflect.AccessibleObject.setAccessible(java.lang.reflect.AccessibleObject
    // [], boolean)
                AccessibleObject ao = TestClass.class.getField("aField");
                AccessibleObject[] aoa = new AccessibleObject[] { ao };
                AccessibleObject.setAccessible(aoa, true);
                assertTrue("Returned false to isAccessible", ao.isAccessible());
                AccessibleObject.setAccessible(aoa, false);
                assertTrue("Returned true to isAccessible", !ao.isAccessible());
  }

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