mirror of https://github.com/apache/activemq.git
git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@1195708 13f79535-47bb-0310-9956-ffa450edef68
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@ -23,21 +23,27 @@ import java.io.ObjectStreamClass;
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import java.lang.reflect.Proxy;
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import java.util.HashMap;
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@SuppressWarnings("rawtypes")
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public class ClassLoadingAwareObjectInputStream extends ObjectInputStream {
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private static final ClassLoader FALLBACK_CLASS_LOADER = ClassLoadingAwareObjectInputStream.class.getClassLoader();
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/** <p>Maps primitive type names to corresponding class objects.</p> */
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private static final ClassLoader FALLBACK_CLASS_LOADER =
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ClassLoadingAwareObjectInputStream.class.getClassLoader();
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/**
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* Maps primitive type names to corresponding class objects.
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*/
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private static final HashMap<String, Class> primClasses = new HashMap<String, Class>(8, 1.0F);
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public ClassLoadingAwareObjectInputStream(InputStream in) throws IOException {
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super(in);
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}
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protected Class resolveClass(ObjectStreamClass classDesc) throws IOException, ClassNotFoundException {
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protected Class<?> resolveClass(ObjectStreamClass classDesc) throws IOException, ClassNotFoundException {
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ClassLoader cl = Thread.currentThread().getContextClassLoader();
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return load(classDesc.getName(), cl);
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}
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protected Class resolveProxyClass(String[] interfaces) throws IOException, ClassNotFoundException {
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protected Class<?> resolveProxyClass(String[] interfaces) throws IOException, ClassNotFoundException {
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ClassLoader cl = Thread.currentThread().getContextClassLoader();
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Class[] cinterfaces = new Class[interfaces.length];
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for (int i = 0; i < interfaces.length; i++) {
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@ -45,18 +51,22 @@ public class ClassLoadingAwareObjectInputStream extends ObjectInputStream {
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}
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try {
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return Proxy.getProxyClass(cinterfaces[0].getClassLoader(), cinterfaces);
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return Proxy.getProxyClass(cl, cinterfaces);
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} catch (IllegalArgumentException e) {
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try {
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return Proxy.getProxyClass(FALLBACK_CLASS_LOADER, cinterfaces);
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} catch (IllegalArgumentException e1) {
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}
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throw new ClassNotFoundException(null, e);
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}
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}
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private Class load(String className, ClassLoader cl)
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throws ClassNotFoundException {
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private Class<?> load(String className, ClassLoader cl) throws ClassNotFoundException {
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try {
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return Class.forName(className, false, cl);
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} catch (ClassNotFoundException e) {
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final Class clazz = (Class) primClasses.get(className);
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final Class<?> clazz = (Class<?>) primClasses.get(className);
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if (clazz != null) {
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return clazz;
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} else {
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@ -65,8 +75,6 @@ public class ClassLoadingAwareObjectInputStream extends ObjectInputStream {
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}
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}
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static {
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primClasses.put("boolean", boolean.class);
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primClasses.put("byte", byte.class);
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@ -78,5 +86,4 @@ public class ClassLoadingAwareObjectInputStream extends ObjectInputStream {
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primClasses.put("double", double.class);
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primClasses.put("void", void.class);
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}
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}
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@ -0,0 +1,102 @@
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/**
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.activemq.bugs;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.ObjectOutputStream;
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import java.io.Serializable;
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import java.lang.reflect.InvocationHandler;
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import java.lang.reflect.Method;
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import java.util.ArrayList;
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import java.util.List;
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import junit.framework.Assert;
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import org.apache.activemq.util.ClassLoadingAwareObjectInputStream;
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import org.junit.Before;
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import org.junit.Test;
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/**
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* Quick port to java to support AMQ build.
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*
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* This test demonstrates the classloader problem in the
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* ClassLoadingAwareObjectInputStream impl. If the first interface in the proxy
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* interfaces list is JDK and there are any subsequent interfaces that are NOT
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* JDK interfaces the ClassLoadingAwareObjectInputStream will ignore their
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* respective classloaders and cause the Proxy to throw an
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* IllegalArgumentException because the core JDK classloader can't load the
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* interfaces that are not JDK interfaces.
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*
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* See AMQ-3537
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*
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* @author jason.yankus
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*
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*/
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@SuppressWarnings({ "rawtypes", "unchecked" })
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public class AMQ3537Test implements InvocationHandler, Serializable {
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private static final long serialVersionUID = 1L;
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/**
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* If the first and second element in this array are swapped, the test will
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* fail.
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*/
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public static final Class[] TEST_CLASSES = new Class[] { List.class, NonJDKList.class, Serializable.class };
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/** Underlying list */
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private List l = new ArrayList<String>();
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@Before
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public void setUp() throws Exception {
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l.add("foo");
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}
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@Test
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public void testDeserializeProxy() throws Exception {
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// create the proxy
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List proxy = (List) java.lang.reflect.Proxy.newProxyInstance(this.getClass().getClassLoader(), TEST_CLASSES, this);
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// serialize it
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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ObjectOutputStream oos = new ObjectOutputStream(baos);
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oos.writeObject(proxy);
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byte[] serializedProxy = baos.toByteArray();
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oos.close();
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baos.close();
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// deserialize the proxy
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ClassLoadingAwareObjectInputStream claois =
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new ClassLoadingAwareObjectInputStream(new ByteArrayInputStream(serializedProxy));
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// this is where it fails due to the rudimentary classloader selection
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// in ClassLoadingAwareObjectInputStream
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List deserializedProxy = (List) claois.readObject();
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// assert the invocation worked
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Assert.assertEquals("foo", deserializedProxy.get(0));
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}
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@Override
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public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
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return method.invoke(l, args);
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}
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public interface NonJDKList {
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int size();
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}
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}
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