[jboss-jira] [JBoss JIRA] Resolved: (HIBERNATE-37) Problem in javassist instrumentation

Problem in javassist instrumentation ------------------------------------ Key: HIBERNATE-37 URL: http://jira.jboss.com/jira/browse/HIBERNATE-37 Project: Hibernate Issue Type: Bug Environment: JBoss 4.0.4.GA Hibernate 3.2 cr2 JDK 1.5 compiler Reporter: Paolo Perrucci Assigned To: Steve Ebersole Given the following model: public interface I { public Long getId(); public void setId(Long id); public Number m1(); } public class A implements I { private Long id; public Long getId() { return id; } public void setId(Long id) { this.id = id; } public Integer m1() { return 0; } } <hibernate-mapping> <class name="A" table="as" dynamic-update="true" dynamic-insert="true"> <id name="id" type="java.lang.Long"> <generator class="native"/> </id> </class> </hibernate-mapping> When I deploy the har file to jboss I have the exceptions: 12:30:15,625 ERROR [BasicLazyInitializer] Javassist Enhancement failed: A java.lang.RuntimeException: duplicate method: m1 at javassist.util.proxy.ProxyFactory.createClass(ProxyFactory.java:173) at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.getProxyFactory(JavassistLazyInitializer.java:141) at org.hibernate.proxy.pojo.javassist.JavassistProxyFactory.postInstantiate(JavassistProxyFactory.java:42) at org.hibernate.tuple.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:159) at org.hibernate.tuple.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:131) at org.hibernate.tuple.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:50) at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64) at org.hibernate.tuple.EntityMetamodel.<init>(EntityMetamodel.java:256) at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:418) at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:108) at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55) at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:223) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1213) at org.jboss.hibernate.jmx.Hibernate.buildSessionFactory(Hibernate.java:231) at org.jboss.hibernate.jmx.Hibernate.startService(Hibernate.java:155) at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289) at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245) at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94) at org.jboss.mx.server.Invocation.invoke(Invocation.java:86) at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978) at $Proxy0.start(Unknown Source) at org.jboss.system.ServiceController.start(ServiceController.java:417) at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94) at org.jboss.mx.server.Invocation.invoke(Invocation.java:86) at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210) at $Proxy4.start(Unknown Source) at org.jboss.deployment.SARDeployer.start(SARDeployer.java:302) at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1007) at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:808) at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771) at sun.reflect.GeneratedMethodAccessor14.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94) at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133) at org.jboss.mx.server.Invocation.invoke(Invocation.java:88) at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142) at org.jboss.mx.server.Invocation.invoke(Invocation.java:88) at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210) at $Proxy6.deploy(Unknown Source) at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421) at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634) at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263) at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:274) at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:225) Caused by: javassist.CannotCompileException: duplicate method: m1 at javassist.bytecode.ClassFile.testExistingMethod(ClassFile.java:544) at javassist.bytecode.ClassFile.addMethod(ClassFile.java:528) at javassist.util.proxy.ProxyFactory.override(ProxyFactory.java:373) at javassist.util.proxy.ProxyFactory.overrideMethods(ProxyFactory.java:349) at javassist.util.proxy.ProxyFactory.make(ProxyFactory.java:277) at javassist.util.proxy.ProxyFactory.createClass(ProxyFactory.java:164) ... 59 more 12:30:15,671 WARN [PojoEntityTuplizer] could not create proxy factory for:A org.hibernate.HibernateException: Javassist Enhancement failed: A at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.getProxyFactory(JavassistLazyInitializer.java:149) at org.hibernate.proxy.pojo.javassist.JavassistProxyFactory.postInstantiate(JavassistProxyFactory.java:42) at org.hibernate.tuple.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:159) at org.hibernate.tuple.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:131) at org.hibernate.tuple.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:50) at org.hibernate.tuple.TuplizerLookup.create(TuplizerLookup.java:64) at org.hibernate.tuple.EntityMetamodel.<init>(EntityMetamodel.java:256) at org.hibernate.persister.entity.AbstractEntityPersister.<init>(AbstractEntityPersister.java:418) at org.hibernate.persister.entity.SingleTableEntityPersister.<init>(SingleTableEntityPersister.java:108) at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55) at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:223) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1213) at org.jboss.hibernate.jmx.Hibernate.buildSessionFactory(Hibernate.java:231) at org.jboss.hibernate.jmx.Hibernate.startService(Hibernate.java:155) at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289) at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245) at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94) at org.jboss.mx.server.Invocation.invoke(Invocation.java:86) at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978) at $Proxy0.start(Unknown Source) at org.jboss.system.ServiceController.start(ServiceController.java:417) at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94) at org.jboss.mx.server.Invocation.invoke(Invocation.java:86) at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210) at $Proxy4.start(Unknown Source) at org.jboss.deployment.SARDeployer.start(SARDeployer.java:302) at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1007) at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:808) at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771) at sun.reflect.GeneratedMethodAccessor14.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155) at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94) at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133) at org.jboss.mx.server.Invocation.invoke(Invocation.java:88) at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142) at org.jboss.mx.server.Invocation.invoke(Invocation.java:88) at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210) at $Proxy6.deploy(Unknown Source) at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421) at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634) at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263) at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:274) at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:225) Caused by: java.lang.RuntimeException: duplicate method: m1 at javassist.util.proxy.ProxyFactory.createClass(ProxyFactory.java:173) at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.getProxyFactory(JavassistLazyInitializer.java:141) ... 58 more Caused by: javassist.CannotCompileException: duplicate method: m1 at javassist.bytecode.ClassFile.testExistingMethod(ClassFile.java:544) at javassist.bytecode.ClassFile.addMethod(ClassFile.java:528) at javassist.util.proxy.ProxyFactory.override(ProxyFactory.java:373) at javassist.util.proxy.ProxyFactory.overrideMethods(ProxyFactory.java:349) at javassist.util.proxy.ProxyFactory.make(ProxyFactory.java:277) at javassist.util.proxy.ProxyFactory.createClass(ProxyFactory.java:164) ... 59 more It seems that the problem is due to how the jdk 1.5 compiler create the class A. Using javap you can see that A.class contains this two method: public java.lang.Integer m1(); public java.lang.Number m1(); Actually the A.class contains the same method name twice.