/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.ejb3.iiop.handle;
import java.io.ObjectInputStream;
import java.lang.reflect.Modifier;
import org.jboss.classfilewriter.ClassFile;
import org.jboss.classfilewriter.ClassMethod;
import org.jboss.classfilewriter.code.CodeAttribute;
/**
* As ObjectInputStream is broken it looks for the class loader of the last non JDK object on the stack.
* <p/>
* As this would normally be from the ejb3 module which can't see deployment modules, we instead define a proxy
* in the deployment class loader, that simply calls readObject.
*
* @author Stuart Douglas
*/
public abstract class SerializationHackProxy {
public static final String NAME = "org.jboss.as.ejb3.SerializationProxyHackImplementation";
public Object read(ObjectInputStream stream) {
return null;
}
public static final SerializationHackProxy proxy(final ClassLoader loader) {
Class<?> clazz;
try {
clazz = loader.loadClass(NAME);
} catch (ClassNotFoundException e) {
try {
final ClassFile file = new ClassFile(NAME, SerializationHackProxy.class.getName());
final ClassMethod method = file.addMethod(Modifier.PUBLIC, "read", "Ljava/lang/Object;", "Ljava/io/ObjectInputStream;");
final CodeAttribute codeAttribute = method.getCodeAttribute();
codeAttribute.aload(1);
codeAttribute.invokevirtual("java/io/ObjectInputStream", "readObject", "()Ljava/lang/Object;");
codeAttribute.returnInstruction();
ClassMethod ctor = file.addMethod(Modifier.PUBLIC, "<init>", "V");
ctor.getCodeAttribute().aload(0);
ctor.getCodeAttribute().invokespecial(SerializationHackProxy.class.getName(), "<init>", "()V");
ctor.getCodeAttribute().returnInstruction();
clazz = file.define(loader);
} catch (RuntimeException ex) {
try {
clazz = loader.loadClass(NAME);
} catch (ClassNotFoundException e1) {
throw ex;
}
}
}
try {
return (SerializationHackProxy) clazz.newInstance();
} catch (InstantiationException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {
throw new RuntimeException(e);
}
}
}