1/** 2 * Copyright 2006-2013 the original author or authors. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16package org.objenesis.instantiator.sun; 17 18import java.io.ObjectInputStream; 19import java.lang.reflect.Method; 20 21import org.objenesis.ObjenesisException; 22import org.objenesis.instantiator.ObjectInstantiator; 23 24/** 25 * Base class for Sun 1.3 based instantiators. It initializes reflection access to static method 26 * ObjectInputStream.allocateNewObject. 27 * 28 * @author Leonardo Mesquita 29 */ 30public abstract class Sun13InstantiatorBase implements ObjectInstantiator { 31 static Method allocateNewObjectMethod = null; 32 33 private static void initialize() { 34 if(allocateNewObjectMethod == null) { 35 try { 36 allocateNewObjectMethod = ObjectInputStream.class.getDeclaredMethod( 37 "allocateNewObject", new Class[] {Class.class, Class.class}); 38 allocateNewObjectMethod.setAccessible(true); 39 } 40 catch(RuntimeException e) { 41 throw new ObjenesisException(e); 42 } 43 catch(NoSuchMethodException e) { 44 throw new ObjenesisException(e); 45 } 46 } 47 } 48 49 protected final Class type; 50 51 public Sun13InstantiatorBase(Class type) { 52 this.type = type; 53 initialize(); 54 } 55 56 public abstract Object newInstance(); 57 58} 59