NotSerializableException: BaseTableRenderer$TableMetaInfo????

[nkaza]

I have an application developed using SWF2 and Rich faces. Often, pressing a button causes the following error. I don't mean a specific button. I have noticed it on many commandLinks. It happens in undetermined times though. A simple refresh may fix the problem. It cannot be reproduced consistently, in order to draw a conclusion. Has anyone encountered the same issue? thanks!

org.springframework.webflow.execution.repository.snapshot.SnapshotCreationException: Could not serialize flow execution; make sure all objects stored in flow or flash scope are serializable
at org.springframework.webflow.execution.repository.snapshot.SerializedFlowExecutionSnapshot.(SerializedFlowExecutionSnapshot.java:74)
at org.springframework.webflow.execution.repository.snapshot.SerializedFlowExecutionSnapshotFactory.createSnapshot(SerializedFlowExecutionSnapshotFactory.java:70)
at org.springframework.webflow.execution.repository.snapshot.AbstractSnapshottingFlowExecutionRepository.snapshot(AbstractSnapshottingFlowExecutionRepository.java:75)
at org.springframework.webflow.execution.repository.impl.DefaultFlowExecutionRepository.putFlowExecution(DefaultFlowExecutionRepository.java:115)
at org.springframework.webflow.executor.FlowExecutorImpl.resumeExecution(FlowExecutorImpl.java:165)
at org.springframework.webflow.mvc.servlet.FlowHandlerAdapter.handle(FlowHandlerAdapter.java:173)
at org.springframework.webflow.mvc.servlet.FlowController.handleRequest(FlowController.java:174)
at org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:807)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:511)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:177)
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267)
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:380)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:507)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3496)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(Unknown Source)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2180)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2086)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1406)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)

Caused by: java.io.NotSerializableException: com.sun.faces.renderkit.html_basic.BaseTableRenderer$TableMetaInfo
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at java.util.HashMap.writeObject(HashMap.java:1131)
at sun.reflect.GeneratedMethodAccessor6781.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
.... (many writeObject0 and writeArray calls) ...
at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1338)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1146)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1474)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at java.util.HashMap.writeObject(HashMap.java:1131)
at sun.reflect.GeneratedMethodAccessor6781.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:416)
at org.springframework.webflow.core.collection.LocalAttributeMap.writeObject(LocalAttributeMap.java:327)
at sun.reflect.GeneratedMethodAccessor6796.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at java.util.HashMap.writeObject(HashMap.java:1131)
at sun.reflect.GeneratedMethodAccessor6781.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1509)
at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:416)
at org.springframework.webflow.core.collection.LocalAttributeMap.writeObject(LocalAttributeMap.java:327)
at sun.reflect.GeneratedMethodAccessor6796.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at org.springframework.webflow.engine.impl.FlowSessionImpl.writeExternal(FlowSessionImpl.java:154)
at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1421)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1390)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at java.util.LinkedList.writeObject(LinkedList.java:943)
at sun.reflect.GeneratedMethodAccessor6972.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:945)
at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1461)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1392)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at org.springframework.webflow.engine.impl.FlowExecutionImpl.writeExternal(FlowExecutionImpl.java:518)
at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1421)
at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1390)
at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1150)
at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at org.springframework.webflow.execution.repository.snapshot.SerializedFlowExecutionSnapshot.serialize(SerializedFlowExecutionSnapshot.java:172)
at org.springframework.webflow.execution.repository.snapshot.SerializedFlowExecutionSnapshot.(SerializedFlowExecutionSnapshot.java:69)
... 36 more

[Ryan Gardner]

put a breakpoint on that and see what it is complaining about. My guess is something in your snapshot doesn't implement serializable.

[nkaza]

put a breakpoint on that and see what it is complaining about. My guess is something in your snapshot doesn't implement serializable.

The problem with doing that is that this problem cannot be reproduced easily. And the problem does not happen consistenty. If there was something in the model which is not Serializable it would throw that exception every time. The BaseTableRenderer$TableMetaInfo is a core JSF renderer class which shouldn't have anything to do with the flow execution state being serialized.

[bjm88]

I got the same error
java.io.NotSerializableException: com.sun.faces.renderkit.html_basic.BaseTableRender er$TableMetaInfo

On Websphere 7, JSF 1.2 RI, RichFaces 3.3.2, Spring 2.5

I dont really think the bug is with Spring, but I found this searching google so I was interested in a fix.

[nkaza]

I got the same error
java.io.NotSerializableException: com.sun.faces.renderkit.html_basic.BaseTableRender er$TableMetaInfo

On Websphere 7, JSF 1.2 RI, RichFaces 3.3.2, Spring 2.5

I dont really think the bug is with Spring, but I found this searching google so I was interested in a fix.

Actually, we never got this error again so probably it was a false alert. We do get this error, consistently every time, only if there is a binding error in the view.