java.rmi.RemoteException: Error; nested exception is:
   java.io.InvalidObjectException: Attempt to read a backreference with an invalid ID (relative near -4)
   at org.jboss.ejb.client.EJBInvocationHandler.doInvoke(EJBInvocationHandler.java:236)
...
   at com.sun.proxy.$Proxy3.invoke(Unknown Source)
   at com.jboss.examples.Proxy.invoke(Proxy.java:123)
   at com.jboss.examples.SLSB.getData(SLSB.java:234)
...
  Caused by: java.io.InvalidObjectException: Attempt to read a backreference with an invalid ID (relative near -4)
   at org.jboss.marshalling.river.RiverUnmarshaller.doReadObject(RiverUnmarshaller.java:257)
...
   at java.io.ObjectInputStream.readObject(Unknown Source) 
   at com.jboss.examples.model.Data$Value.readObject(TraceData.java:60) 
...
  Caused by: an exception which occurred:
   in field tag
   in object of type com.jboss.examples.model.Data$Value
   in object of type com.jboss.examples.model.Data$ValueList
   in field pointList
   in object of type com.jboss.examples.model.Data$LoadList$Trace
   in element at index [10] of size [24]
   in field traces
   in object of type com.jboss.examples.model.Data$LoadList