Migrating from Tomcat 6 JDK 1.6 to Tomcat 7 JDK 1.7 Session Issues

Question

We did a migration of our application which was functioning properly in Tomcat 6 with JDK 1.6 to Tomcat 7 JDK 1.7. The WAR deployed to the Tomcat 6 works properly in Tomcat 7.But the WAR compiled under JDK 1.7, causes the is that if we click any links in the UI it immediately reports session timed out. We are using MyFaces 2.0.7 with Trinidad 2.0.0. Clicking a link gives a ViewExpiredException.

Problem may be associated with below stacktrace which appears during the start-up of the Tomcat 7 server.

Mar 11, 2014 5:31:26 PM org.apache.catalina.session.StandardManager doLoad SEVERE: IOException while loading persisted sessions: java.io.InvalidObjectException: enum constant resourceDependencyUniqueIdCounter does not exist in class javax.faces.component.UIViewRoot$PropertyKeys java.io.InvalidObjectException: enum constant resourceDependencyUniqueIdCounter does not exist in class javax.faces.component.UIViewRoot$PropertyKeys at java.io.ObjectInputStream.readEnum(ObjectInputStream.java:1741) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1345) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1704) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1342) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1704) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1342) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1704) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1342) at java.io.ObjectInp utStream.readObject(ObjectInputStream.java:370) at java.util.HashMap.readObject(HashMap.java:1155) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1891) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1704) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1342) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1989) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1913) at java.io.ObjectInputStream.readO rdinaryObject(ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1595) at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:1060) at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:282) at org.apache.catalina.session.StandardManager.load(StandardManager.java:202) at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:489) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5476) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache .catalina.core.StandardHost.addChild(StandardHost.java:632) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1073) at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1857) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:724) Caused by: java.lang.IllegalArgumentException: No enum constant javax.faces.component.UIViewRoot.PropertyKeys.resourceDependencyUniqueIdCounter at java.lang.Enum.valueOf(Enum.java:236) at java.io.ObjectInputStream.readEnum(ObjectInputStream.java:1739) ... 43 more

Mar 11, 2014 5:31:26 PM org.apache.catalina.session.StandardManager startInternal SEVERE: Exception loading sessions from persistent storage java.io.InvalidObjectException: enum constant resourceDependencyUniqueIdCounter does not exist in class javax.faces.component.UIViewRoot$PropertyKeys at java.io.ObjectInputStream.readEnum(ObjectInputStream.java:1741) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1345) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1704) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1342) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1704) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1342) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1704) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1342) at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370) at java.util.HashMap.readObject(HashMap.java:1155) at sun.reflect.NativeMethodAccessorImpl .invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1891) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1704) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1342) at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1989) at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1913) at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1796) at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1348) at java.io.ObjectInputStr eam.readObject(ObjectInputStream.java:370) at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1595) at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:1060) at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:282) at org.apache.catalina.session.StandardManager.load(StandardManager.java:202) at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:489) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5476) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:632) at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1073) at o rg.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1857) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:724) Caused by: java.lang.IllegalArgumentException: No enum constant javax.faces.component.UIViewRoot.PropertyKeys.resourceDependencyUniqueIdCounter at java.lang.Enum.valueOf(Enum.java:236) at java.io.ObjectInputStream.readEnum(ObjectInputStream.java:1739) ... 43 more

Mar 11, 2014 5:31:26 PM org.apache.catalina.startup.HostConfig deployWAR

Answer 1

Tomcat tries to deserialize an existing session, but cannot do so as the serialization byte stream references an enum (resourceDependencyUniqueIdCounter) which it cannot find.

I would guess you either updated Tomcat inplace (keeping your old serialized sessions) or that you are still changing your classes a lot without changing the serial number in the class.

The simplest solution at this point is most likely to clean out the existing serialized session files and try again.