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java.io.NotSerializableException WAS 6.0

Posted on 2006-05-24
Medium Priority
Last Modified: 2013-11-24
Hi all

i am creating EAR Comp. from WASD 5.1.1 and deploying in WAS 6.0.
here one of my Stateless Session Bean calling another Stateless Session Bean. while calling , i am getting this exception.

java.rmi.MarshalException: Exception occurred in server thread; nested exception is:
      at com.ibm.rmi.util.ProxyUtil.copyObjects(ProxyUtil.java:289)
      at com.ibm.CORBA.iiop.UtilDelegateImpl.copyObjects(UtilDelegateImpl.java:764)
      at javax.rmi.CORBA.Util.copyObjects(Util.java:315)
      at com.dcons.iss.ejb._ISS_Stub.handleRequest(_ISS_Stub.java:325)
      at com.dcons.iss.ejb.CountryBean.postRequest(CountryBean.java:142)
      at com.dcons.iss.ejb.EJSRemoteStatelessCountryBean_92aaebd3.postRequest(EJSRemoteStatelessCountryBean_92aaebd3.java:35)
      at com.dcons.iss.ejb._CountryRemote_Stub.postRequest(_CountryRemote_Stub.java:257)
      at com.dcons.iss.ejb.BeanHandlerFacadeBean.delegateRequest(BeanHandlerFacadeBean.java:74)
      at com.dcons.iss.ejb.EJSRemoteStatelessBeanHandlerFacade_7b05eacf.delegateRequest(EJSRemoteStatelessBeanHandlerFacade_7b05eacf.java:35)
      at com.dcons.iss.ejb._BeanHandlerFacadeRemote_Stub.delegateRequest(_BeanHandlerFacadeRemote_Stub.java:263)
      at com.dcons.iss.BeanHandler.doPost(BeanHandler.java:97)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1282)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:673)
      at com.ibm.ws.webcontainer.webapp.WebAppRequestDispatcher.forward(WebAppRequestDispatcher.java:265)
      at com.dcons.iss.Controller.doPost(Controller.java:109)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)
      at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.service(ServletWrapper.java:1282)
      at com.ibm.ws.webcontainer.servlet.ServletWrapper.handleRequest(ServletWrapper.java:673)
      at com.ibm.ws.webcontainer.servlet.CacheServletWrapper.handleRequest(CacheServletWrapper.java:80)
      at com.ibm.ws.webcontainer.WebContainer.handleRequest(WebContainer.java:1802)
      at com.ibm.ws.webcontainer.channel.WCChannelLink.ready(WCChannelLink.java:84)
      at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleDiscrimination(HttpInboundLink.java:469)
      at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.handleNewInformation(HttpInboundLink.java:408)
      at com.ibm.ws.http.channel.inbound.impl.HttpInboundLink.ready(HttpInboundLink.java:286)
      at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.sendToDiscriminaters(NewConnectionInitialReadCallback.java:201)
      at com.ibm.ws.tcp.channel.impl.NewConnectionInitialReadCallback.complete(NewConnectionInitialReadCallback.java:103)
      at com.ibm.ws.tcp.channel.impl.WorkQueueManager.requestComplete(WorkQueueManager.java:566)
      at com.ibm.ws.tcp.channel.impl.WorkQueueManager.attemptIO(WorkQueueManager.java(Compiled Code))
      at com.ibm.ws.tcp.channel.impl.WorkQueueManager.workerRun(WorkQueueManager.java:952)
      at com.ibm.ws.tcp.channel.impl.WorkQueueManager$Worker.run(WorkQueueManager.java:1039)
      at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java(Compiled Code))
Caused by: java.io.NotSerializableException

Question by:datacons
LVL 92

Accepted Solution

objects earned 336 total points
ID: 16758090
looks like one classes is not saerializable

whats the call at line 97 of BeanHandler
LVL 14

Assisted Solution

hoomanv earned 332 total points
ID: 16758131
Any Object that needs to be sent across as an argument to the remote object (RMI) has to be "Serializable".Make sure your arguments are serializable.

Breaking an object and sending it to remote object and then reconstructing it at the remote site is called Marshalling and UnMarshalling respectively.

Author Comment

ID: 16758171

thanx for reply. instead of using Serializable , we can define in Deployment Descriptor files. for Example in Weblogic-ejb-jar.xml , we can define like <call-by-reference>true </call-by-reference>. so all Ejbs are becoming serializable.

my question is how do we define in Websphere 6.0 server./ WASD 5.1.1 Deployment Descriptor Files.

LVL 30

Assisted Solution

by:Mayank S
Mayank S earned 332 total points
ID: 16761038
Not sure, I would prefer to always define it as Serializable (if you port the same code to a different app-server you could face problems). Make sure the data-members inside the objects you are passing to the EJB are also serializable.

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