Examples of sun.reflect.ReflectionFactory

sun.reflect.ReflectionFactory

The master factory for all reflective objects, both those in java.lang.reflect (Fields, Methods, Constructors) as well as their delegates (FieldAccessors, MethodAccessors, ConstructorAccessors).

The methods in this class are extremely unsafe and can cause subversion of both the language and the verifier. For this reason, they are all instance methods, and access to the constructor of this factory is guarded by a security check, in similar style to {@link sun.misc.Unsafe}.

  private final Constructor mungedConstructor;


  public SunReflectionFactorySerializationInstantiator(Class type) {


    Class nonSerializableAncestor = SerializationInstantiatorHelper.getNonSerializableSuperClass(type);
    ReflectionFactory reflectionFactory = ReflectionFactory.getReflectionFactory();
    Constructor nonSerializableAncestorConstructor;
    try {
      nonSerializableAncestorConstructor = nonSerializableAncestor.getConstructor((Class[]) null);
    } catch (NoSuchMethodException e) {
      /**
       * @todo (Henri) I think we should throw a NotSerializableException
       *       just to put the same message a ObjectInputStream.
       *       Otherwise, the user won't know if the null returned if a
       *       "Not serializable", a "No default constructor on ancestor"
       *       or a "Exception in constructor"
       */
      throw new ObjenesisException(new NotSerializableException(type + " has no suitable superclass constructor"));
    }


    mungedConstructor = reflectionFactory.newConstructorForSerialization(type, nonSerializableAncestorConstructor);
    mungedConstructor.setAccessible(true);
  }

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  private final Constructor mungedConstructor;


  public SunReflectionFactoryInstantiator(Class type) {


    ReflectionFactory reflectionFactory = ReflectionFactory.getReflectionFactory();
    Constructor javaLangObjectConstructor;


    try {
      javaLangObjectConstructor = Object.class.getConstructor((Class[]) null);
    } catch (NoSuchMethodException e) {
      throw new Error("Cannot find constructor for java.lang.Object!");
    }
    mungedConstructor = reflectionFactory.newConstructorForSerialization(type, javaLangObjectConstructor);
    mungedConstructor.setAccessible(true);
  }

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      proxyFactory.setHandler(interceptorMethodHandler);


      try
      {
         Class<T> clazz = proxyFactory.createClass();
         ReflectionFactory reflectionFactory = ReflectionFactory.getReflectionFactory();
         Constructor<T> c = reflectionFactory.newConstructorForSerialization(clazz, Object.class.getDeclaredConstructor());
         T proxyObject = c.newInstance();
         ((ProxyObject)proxyObject).setHandler(interceptorMethodHandler);
         return proxyObject;
      } catch (Exception e)
      {

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   private final Constructor mungedConstructor;


   public SunReflectionFactoryInstantiator(Class type) {


      ReflectionFactory reflectionFactory = ReflectionFactory.getReflectionFactory();
      Constructor javaLangObjectConstructor;


      try {
         javaLangObjectConstructor = Object.class.getConstructor((Class[]) null);
      }
      catch(NoSuchMethodException e) {
         throw new Error("Cannot find constructor for java.lang.Object!");
      }
      mungedConstructor = reflectionFactory.newConstructorForSerialization(type,
         javaLangObjectConstructor);
      mungedConstructor.setAccessible(true);
   }

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    };
  }


  protected <T> StateBackedCreator<T, STATE> createWithoutConstructorInvocation(
      final Class<T> type, Class<STATE> stateType) {
    ReflectionFactory rf = ReflectionFactory.getReflectionFactory();
    Constructor<?> objectConstructor = getDeclaredConstructor(Object.class);
    final Constructor<?> serializationConstructor = rf.newConstructorForSerialization(type, objectConstructor);
    return new StateBackedCreator<T, STATE>() {
      public T create(STATE state, Class<T> c) throws Exception {
        final T result = type.cast(serializationConstructor.newInstance());
        setState(result, state);
        return result;

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   public <T> T createProxyInstance(Class<T> proxyClass, MethodHandler interceptorMethodHandler)
   {
      try
      {
         ReflectionFactory reflectionFactory = ReflectionFactory.getReflectionFactory();
         Constructor<T> c = reflectionFactory.newConstructorForSerialization(proxyClass, Object.class.getDeclaredConstructor());
         T proxyObject = c.newInstance();
         if (interceptorMethodHandler != null)
         {
            ((ProxyObject) proxyObject).setHandler(interceptorMethodHandler);
         }

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        return true;
    }


    private static Field[] copyFields(Field[] arg) {
        Field[] out = new Field[arg.length];
        ReflectionFactory fact = getReflectionFactory();
        for (int i = 0; i < arg.length; i++) {
            out[i] = fact.copyField(arg[i]);
        }
        return out;
    }

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        return out;
    }


    private static Method[] copyMethods(Method[] arg) {
        Method[] out = new Method[arg.length];
        ReflectionFactory fact = getReflectionFactory();
        for (int i = 0; i < arg.length; i++) {
            out[i] = fact.copyMethod(arg[i]);
        }
        return out;
    }

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        return out;
    }


    private static Constructor[] copyConstructors(Constructor[] arg) {
        Constructor[] out = new Constructor[arg.length];
        ReflectionFactory fact = getReflectionFactory();
        for (int i = 0; i < arg.length; i++) {
            out[i] = fact.copyConstructor(arg[i]);
        }
        return out;
    }

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        return true;
    }


    private static Field[] copyFields(Field[] arg) {
        Field[] out = new Field[arg.length];
        ReflectionFactory fact = getReflectionFactory();
        for (int i = 0; i < arg.length; i++) {
            out[i] = fact.copyField(arg[i]);
        }
        return out;
    }

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