SerializationException on JBoss EAP

Issue

• Scenario:

        import org.jboss.annotation.ejb.Service;
        import javax.ejb.EJB;

        An @Service annotated bean calls via injection (@EJB) another @Service bean. The return of that method is of type java.io.File.

• The following error can be seen in the server.log:

        java.lang.reflect.UndeclaredThrowableException     
            at $Proxy119.getFile(Unknown Source)        
            at aaa.bbb.ccc.ddd.eee.WorkerProcessFactoryBean.getClassPath(WorkerProcessFactoryBean.java:144)        
            at aaa.bbb.ccc.ddd.eee.WorkerProcessFactoryBean.newProcess(WorkerProcessFactoryBean.java:290)        
            at aaa.bbb.ccc.ddd.eee.ThreadProcessState.startProcessIfNeeded(ThreadProcessState.java:188)        
            at aaa.bbb.ccc.ddd.eee.ThreadProcessState.runTask(ThreadProcessState.java:385)        
            at aaa.bbb.ccc.ddd.eee.ThreadProcessState.ping(ThreadProcessState.java:293)        
            at aaa.bbb.ccc.ddd.eee.ThreadProcessState.afterTask(ThreadProcessState.java:352)        
            at aaa.bbb.ccc.ddd.eee.WorkerProcessThreadPoolExecutor.afterExecute(WorkerProcessThreadPoolExecutor.java:48)        
            at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)        
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)        
            at java.lang.Thread.run(Unknown Source)        
            at aaa.bbb.ccc.ddd.eee.WorkerProcessThread.run(WorkerProcessThread.java:186)        
        Caused by: java.io.IOException        
            at org.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:109)        
            at org.jboss.serial.persister.RegularObjectPersister.defaultRead(RegularObjectPersister.java:286)        
            at org.jboss.serial.persister.RegularObjectPersister.readData(RegularObjectPersister.java:258)        
            at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.readObjectDescriptionFromStreaming(ObjectDescriptorFactory.java:412)        
            at org.jboss.serial.objectmetamodel.ObjectDescriptorFactory.objectFromDescription(ObjectDescriptorFactory.java:82)        
            at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readObject(DataContainer.java:847)        
            at org.jboss.serial.io.MarshalledObjectForLocalCalls.get(MarshalledObjectForLocalCalls.java:60)        
            at org.jboss.ejb3.remoting.IsLocalInterceptor.invokeLocal(IsLocalInterceptor.java:96)        
            at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:72)        
            at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)        
            at org.jboss.ejb3.service.ServiceRemoteProxy.invoke(ServiceRemoteProxy.java:97)
                    ... 12 more

        Caused by: java.lang.reflect.InvocationTargetException
            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.jboss.serial.persister.RegularObjectPersister.readSlotWithMethod(RegularObjectPersister.java:105)
                  ... 22 more

        Caused by: org.jboss.serial.exception.SerializationException: Excepted to be int
            at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readInt(DataContainer.java:1050)
            at org.jboss.serial.persister.ObjectInputStreamProxy.readInt(ObjectInputStreamProxy.java:156)
            at org.jboss.serial.objectmetamodel.FieldsContainer.readMyself(FieldsContainer.java:214)
            at org.jboss.serial.persister.ObjectInputStreamProxy.readFields(ObjectInputStreamProxy.java:224)
            at java.io.File.readObject(Unknown Source)
                    ... 27 more

        Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to org.jboss.serial.finalcontainers.IntegerContainer
            at org.jboss.serial.objectmetamodel.DataContainer$DataContainerInput.readInt(DataContainer.java:1046)

                    ... 31 more

• or following error occurs in the logs :

2013-09-26 01:32:51,674 DEBUG [org.jboss.serial.persister.RegularObjectPersister] (WorkerThread#0[172.18.66.179:36794]) defaultRead::slot[0]=java.util.Vector
2013-09-26 01:32:51,674 DEBUG [org.jboss.serial.persister.RegularObjectPersister] (WorkerThread#0[172.18.66.179:36794]) readSlotWithFields slot=java.util.Vector
2013-09-26 01:32:51,674 DEBUG [org.jboss.serial.persister.RegularObjectPersister] (WorkerThread#0[172.18.66.179:36794]) FieldName on Read=elementData
2013-09-26 01:32:51,674 DEBUG [org.jboss.serial.persister.RegularObjectPersister] (WorkerThread#0[172.18.66.179:36794]) readSlotWithFields slot=java.util.Vector field=elementData<<-reading Object