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}.

        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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      // Because the newer JVMs throw a VerifyError if a class attempts to in a constructor other than their superclasses constructor,
      // and because we can't know what objects/values we need to pass into the class being proxied constructor, 
      // we instantiate the proxy class using the ReflectionFactory.newConstructorForSerialization() method which allows us to instantiate the 
      // proxy class without calling the proxy class' constructor. It is in fact using the java.lang.Object constructor so is in effect 
      // doing what we were doing before.
      ReflectionFactory factory = ReflectionFactory.getReflectionFactory();
      Constructor<?> constr = Object.class.getConstructor();
      Constructor<?> subclassConstructor = factory.newConstructorForSerialization(generatedProxySubclass, constr);
      proxySubclassInstance = subclassConstructor.newInstance();
      
      Method setIHMethod = proxySubclassInstance.getClass().getMethod("setInvocationHandler", InvocationHandler.class);
      setIHMethod.invoke(proxySubclassInstance, ih);
      LOGGER.debug("Invoked proxy subclass constructor");

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

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    private final Constructor mungedConstructor;


    public SunReflectionFactorySerializationInstantiator(final Class type) {


        final Class nonSerializableAncestor = SerializationInstantiatorHelper.getNonSerializableSuperClass( type );
        final ReflectionFactory reflectionFactory = ReflectionFactory.getReflectionFactory();
        Constructor nonSerializableAncestorConstructor;
        try {
            nonSerializableAncestorConstructor = nonSerializableAncestor.getConstructor( (Class[]) null );
        } catch ( final 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" ) );
        }


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

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