/*
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* JBoss, Home of Professional Open Source
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* Copyright 2005, JBoss Inc., and individual contributors as indicated
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* by the @authors tag. See the copyright.txt in the distribution for a
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* full listing of individual contributors.
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this software; if not, write to the Free
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
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*/
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package org.jbpm.pvm.internal.util;
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public abstract class EqualsUtil {
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public static boolean equals(Object thisObject, Object otherObject) {
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if ( (thisObject==null) || (otherObject==null) ) return false;
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if (isProxy(otherObject)) {
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return otherObject.equals(thisObject);
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} else {
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return otherObject==thisObject;
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}
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}
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static boolean isInitialized = false;
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static boolean isHibernateInClasspth = true;
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static Class<?> hibernateProxyClass = null;
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static boolean isProxy(Object otherObject) {
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boolean isProxy = false;
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if (!isInitialized) initializeHibernateProxyClass();
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if (isHibernateInClasspth) {
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return hibernateProxyClass.isAssignableFrom(otherObject.getClass());
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}
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return isProxy;
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}
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static synchronized void initializeHibernateProxyClass() {
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try {
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ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
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hibernateProxyClass = classLoader.loadClass("org.hibernate.proxy.HibernateProxy");
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} catch (ClassNotFoundException e) {
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isHibernateInClasspth = false;
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}
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isInitialized = true;
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}
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}
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