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/** * Copyright 2006-2015 the original author or authors. *// w ww . j a v a 2 s.c o m * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.objenesis.instantiator.sun; import java.io.NotSerializableException; import java.lang.reflect.Constructor; import org.objenesis.ObjenesisException; import org.objenesis.instantiator.ObjectInstantiator; import org.objenesis.instantiator.SerializationInstantiatorHelper; /** * Instantiates an object using internal sun.reflect.ReflectionFactory - a class only available on * JDK's that use Sun's 1.4 (or later) Java implementation. This instantiator will create classes in * a way compatible with serialization, calling the first non-serializable superclass' no-arg * constructor. This is the best way to instantiate an object without any side effects caused by the * constructor - however it is not available on every platform. * * @author Leonardo Mesquita * @see ObjectInstantiator */ public class SunReflectionFactorySerializationInstantiator<T> implements ObjectInstantiator<T> { private final Constructor<T> mungedConstructor; public SunReflectionFactorySerializationInstantiator(Class<T> type) { Class<? super T> nonSerializableAncestor = SerializationInstantiatorHelper .getNonSerializableSuperClass(type); Constructor<? super T> nonSerializableAncestorConstructor; try { nonSerializableAncestorConstructor = nonSerializableAncestor .getConstructor((Class[]) null); } catch(NoSuchMethodException e) { throw new ObjenesisException(new NotSerializableException(type+" has no suitable superclass constructor")); } mungedConstructor = SunReflectionFactoryHelper.newConstructorForSerialization( type, nonSerializableAncestorConstructor); mungedConstructor.setAccessible(true); } public T newInstance() { try { return mungedConstructor.newInstance((Object[]) null); } catch(Exception e) { throw new ObjenesisException(e); } } }