Author: steve.ebersole(a)jboss.com Date: 2010-01-27 14:16:39 -0500 (Wed, 27 Jan 2010) New Revision: 18657 Added: core/trunk/core/src/test/java/org/hibernate/util/SerializableThing.java core/trunk/core/src/test/java/org/hibernate/util/SerializationHelperTest.java Log: HHH-4799 - Create a *unit* test that asserts SerializationHelper's ability to deser a class using an "isolated classloader" (aka a TCCL) Added: core/trunk/core/src/test/java/org/hibernate/util/SerializableThing.java =================================================================== --- core/trunk/core/src/test/java/org/hibernate/util/SerializableThing.java (rev 0) +++ core/trunk/core/src/test/java/org/hibernate/util/SerializableThing.java 2010-01-27 19:16:39 UTC (rev 18657) @@ -0,0 +1,34 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * Copyright (c) 2010, Red Hat Inc. or third-party contributors as + * indicated by the @author tags or express copyright attribution + * statements applied by the authors. All third-party contributions are + * distributed under license by Red Hat Inc. + * + * This copyrighted material is made available to anyone wishing to use, modify, + * copy, or redistribute it subject to the terms and conditions of the GNU + * Lesser General Public License, as published by the Free Software Foundation. + * + * This program 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 distribution; if not, write to: + * Free Software Foundation, Inc. + * 51 Franklin Street, Fifth Floor + * Boston, MA 02110-1301 USA + */ +package org.hibernate.util; + +import java.io.Serializable; + +/** + * TODO : javadoc + * + * @author Steve Ebersole + */ +public class SerializableThing implements Serializable { +} Added: core/trunk/core/src/test/java/org/hibernate/util/SerializationHelperTest.java =================================================================== --- core/trunk/core/src/test/java/org/hibernate/util/SerializationHelperTest.java (rev 0) +++ core/trunk/core/src/test/java/org/hibernate/util/SerializationHelperTest.java 2010-01-27 19:16:39 UTC (rev 18657) @@ -0,0 +1,100 @@ +/* + * Hibernate, Relational Persistence for Idiomatic Java + * + * Copyright (c) 2010, Red Hat Inc. or third-party contributors as + * indicated by the @author tags or express copyright attribution + * statements applied by the authors. All third-party contributions are + * distributed under license by Red Hat Inc. + * + * This copyrighted material is made available to anyone wishing to use, modify, + * copy, or redistribute it subject to the terms and conditions of the GNU + * Lesser General Public License, as published by the Free Software Foundation. + * + * This program 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 distribution; if not, write to: + * Free Software Foundation, Inc. + * 51 Franklin Street, Fifth Floor + * Boston, MA 02110-1301 USA + */ +package org.hibernate.util; + +import java.io.InputStream; +import java.io.Serializable; + +import junit.framework.TestCase; + +import org.hibernate.bytecode.util.ByteCodeHelper; + +/** + * This is basically a test to assert the expectations of {@link org.hibernate.type.SerializableType} + * in regards to deserializing bytes from second level caches. + * + * @author Steve Ebersole + */ +public class SerializationHelperTest extends TestCase { + private ClassLoader original; + private CustomClassLoader custom; + + protected void setUp() throws Exception { + original = Thread.currentThread().getContextClassLoader(); + custom = new CustomClassLoader( original ); + Thread.currentThread().setContextClassLoader( custom ); + + } + + protected void tearDown() throws Exception { + Thread.currentThread().setContextClassLoader( original ); + } + + public void testSerializeDeserialize() throws Exception { + Class clazz = Thread.currentThread().getContextClassLoader().loadClass( "org.hibernate.util.SerializableThing" ); + Object instance = clazz.newInstance(); + + // SerializableType.toBytes() logic, as called from SerializableType.disassemble() + byte[] bytes = SerializationHelper.serialize( (Serializable) instance ); + + // SerializableType.fromBytes() logic, as called from SerializableType.assemble + // NOTE : specifically we use Serializable.class.getClassLoader for the CL in many cases + // which are the problematic cases + Object instance2 = SerializationHelper.deserialize( bytes, Serializable.class.getClassLoader() ); + + assertEquals( instance.getClass(), instance2.getClass() ); + assertEquals( instance.getClass().getClassLoader(), instance2.getClass().getClassLoader() ); + assertEquals( custom, instance2.getClass().getClassLoader() ); + } + + public static class CustomClassLoader extends ClassLoader { + public CustomClassLoader(ClassLoader parent) { + super( parent ); + } + + public Class loadClass(String name) throws ClassNotFoundException { + if ( ! name.equals( "org.hibernate.util.SerializableThing" ) ) { + return getParent().loadClass( name ); + } + + Class c = findLoadedClass( name ); + if ( c != null ) { + return c; + } + + InputStream is = this.getResourceAsStream( name.replace( '.', '/' ) + ".class" ); + if ( is == null ) { + throw new ClassNotFoundException( name + " not found" ); + } + + try { + byte[] bytecode = ByteCodeHelper.readByteCode( is ); + return defineClass( name, bytecode, 0, bytecode.length ); + } + catch( Throwable t ) { + throw new ClassNotFoundException( name + " not found", t ); + } + } + } +}