[jboss-jira] [JBoss JIRA] Commented: (JBAS-3952) Problem with SerializableProxy when de-serializing in a remote client
Frank Ulbricht (JIRA)
jira-events at jboss.com
Tue Jan 16 10:40:53 EST 2007
[ http://jira.jboss.com/jira/browse/JBAS-3952?page=comments#action_12350949 ]
Frank Ulbricht commented on JBAS-3952:
--------------------------------------
I just did some more testing about this. The bug is gone if I use Java 5 on both sides (client and server). Seams to be a problem with Java 6 and serialization.
> Problem with SerializableProxy when de-serializing in a remote client
> ---------------------------------------------------------------------
>
> Key: JBAS-3952
> URL: http://jira.jboss.com/jira/browse/JBAS-3952
> Project: JBoss Application Server
> Issue Type: Bug
> Security Level: Public(Everyone can see)
> Components: Hibernate service, EJB3
> Affects Versions: JBossAS-4.0.5.GA
> Environment: Windows Vista and Windows XP, Java 1.5.0 Update 10 and Java 1.6.0
> Reporter: Frank Ulbricht
> Assigned To: Bill Burke
> Attachments: testcase.zip
>
>
> After calling a SessionBean method that returns an entity with a lazy relation there is an problem with de-serialization on the client side. The lazy field cannot not be assigned because of a ClassCastException. In other projects the same happens after a method returns the result of a query where lazy fields are involved. The problem occurs only with lazy fields. The is a simple test case attached with the problem code line marked.
> Here is the complete stacktrace:
> java.lang.reflect.UndeclaredThrowableException
> at $Proxy6.updateAddress(Unknown Source)
> at com.qualitype.testcase.client.RemoteClientTestCase.test(RemoteClientTestCase.java:48)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
> at java.lang.reflect.Method.invoke(Unknown Source)
> at org.junit.internal.runners.TestMethodRunner.executeMethodBody(TestMethodRunner.java:99)
> at org.junit.internal.runners.TestMethodRunner.runUnprotected(TestMethodRunner.java:81)
> at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
> at org.junit.internal.runners.TestMethodRunner.runMethod(TestMethodRunner.java:75)
> at org.junit.internal.runners.TestMethodRunner.run(TestMethodRunner.java:45)
> at org.junit.internal.runners.TestClassMethodsRunner.invokeTestMethod(TestClassMethodsRunner.java:71)
> at org.junit.internal.runners.TestClassMethodsRunner.run(TestClassMethodsRunner.java:35)
> at org.junit.internal.runners.TestClassRunner$1.runUnprotected(TestClassRunner.java:42)
> at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
> at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
> at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
> at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
> at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
> Caused by: java.rmi.MarshalException: Failed to communicate. Problem during marshalling/unmarshalling; nested exception is:
> java.lang.ClassCastException: cannot assign instance of org.hibernate.proxy.pojo.javassist.SerializableProxy to field com.qualitype.testcase.entity.Address.person of type com.qualitype.testcase.entity.Person in instance of com.qualitype.testcase.entity.Address
> at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:306)
> at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:143)
> at org.jboss.remoting.Client.invoke(Client.java:525)
> at org.jboss.remoting.Client.invoke(Client.java:488)
> at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:55)
> at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
> at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:61)
> at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
> at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:53)
> at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
> at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:77)
> at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
> at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:102)
> ... 22 more
> Caused by: java.lang.ClassCastException: cannot assign instance of org.hibernate.proxy.pojo.javassist.SerializableProxy to field com.qualitype.testcase.entity.Address.person of type com.qualitype.testcase.entity.Person in instance of com.qualitype.testcase.entity.Address
> at java.io.ObjectStreamClass$FieldReflector.setObjFieldValues(Unknown Source)
> at java.io.ObjectStreamClass.setObjFieldValues(Unknown Source)
> at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
> at java.io.ObjectInputStream.readSerialData(Unknown Source)
> at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
> at java.io.ObjectInputStream.readObject0(Unknown Source)
> at java.io.ObjectInputStream.readObject(Unknown Source)
> at org.jboss.aop.joinpoint.InvocationResponse.readExternal(InvocationResponse.java:122)
> at java.io.ObjectInputStream.readExternalData(Unknown Source)
> at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
> at java.io.ObjectInputStream.readObject0(Unknown Source)
> at java.io.ObjectInputStream.defaultReadFields(Unknown Source)
> at java.io.ObjectInputStream.readSerialData(Unknown Source)
> at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
> at java.io.ObjectInputStream.readObject0(Unknown Source)
> at java.io.ObjectInputStream.readObject(Unknown Source)
> at org.jboss.remoting.serialization.impl.java.JavaSerializationManager.receiveObject(JavaSerializationManager.java:128)
> at org.jboss.remoting.marshal.serializable.SerializableUnMarshaller.read(SerializableUnMarshaller.java:66)
> at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:279)
> ... 34 more
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