StreamCorruptedException jvm 6

Olá Pessoal,

tenho uma aplicação ejb rodando em um jboss-4.0.4.GA.

Tem um erro que parece ser por causa do calendar, quando o banco está vazio funciona normal, mas é só adicionar alguma entidade que possui atributo calendar que ocorre o erro abaixo.

O sistema sempre funcionou, mas quando veio a JVM 6 o sistema parou de funcionar.

Seria facil se continuarmos na jvm 5 mas o problema é que só nao funciona se o cliente está usando a jvm 6 e nao temos como dizer pro cliente não usar essa VM.

exemplo:

cliente     servidor     status
JVM6       JVM6          erro
JVM5       JVM6          normal
JVM5      JVM5          normal

alguem consegue me dar uma luz?

2007-07-16 11:30:05,442 [org.jboss.remoting.transport.socket.SocketClientInvoker] DEBUG - connect called for: org.jboss.remoting.transport.socket.SocketClientInvoker@ac2d3c
2007-07-16 11:30:11,734 [org.jboss.remoting.transport.socket.SocketClientInvoker] ERROR - Got marshalling exception, exiting
java.io.StreamCorruptedException: invalid type code: 00
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1356)
	at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1642)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
	at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:480)
	at java.util.Calendar.readObject(Calendar.java:2609)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
	at java.util.HashMap.readObject(HashMap.java:1029)
	at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
	at org.jboss.aop.joinpoint.InvocationResponse.readExternal(InvocationResponse.java:122)
	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1751)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
	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)
	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:55)
	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
	at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:78)
	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
	at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:102)
	at $Proxy2.getEntity(Unknown Source)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at framework.control.delegate.AbstractEJBDelegate.callRemoteMethod(AbstractEJBDelegate.java:102)
	at framework.control.delegate.AbstractEJBDelegate.getEntity(AbstractEJBDelegate.java:151)

Caused by: java.lang.reflect.UndeclaredThrowableException
	at $Proxy2.getEntity(Unknown Source)
	... 46 more
Caused by: java.rmi.MarshalException: Failed to communicate.  Problem during marshalling/unmarshalling; nested exception is: 
	java.io.StreamCorruptedException: invalid type code: 00
	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:55)
	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
	at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:78)
	at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
	at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:102)
	... 47 more
Caused by: java.io.StreamCorruptedException: invalid type code: 00
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1356)
	at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1642)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1323)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
	at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:480)
	at java.util.Calendar.readObject(Calendar.java:2609)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
	at java.util.HashMap.readObject(HashMap.java:1029)
	at sun.reflect.GeneratedMethodAccessor7.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
	at org.jboss.aop.joinpoint.InvocationResponse.readExternal(InvocationResponse.java:122)
	at java.io.ObjectInputStream.readExternalData(ObjectInputStream.java:1792)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1751)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
	at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
	at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
	at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
	at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
	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)
	... 59 more