Strange Exception out of nowhere

[Gregg Bolinger]

Yesterday, everything worked fine.  Today I have started getting a 
strange exception when I deploy my app.  I haven't really even changed 
anything.  Here is the exception:

java.io.WriteAbortedException: writing aborted; 
java.io.NotSerializableException: 
javax.faces.application.StateManager$SerializedView
       at 
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1303)
       at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1628)
       at 
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1293)
       at java.io.ObjectInputStream.readObject(ObjectInputStream.java:339)
       at 
org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1362)
       at 
org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:894)
       at 
org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:448)
       at 
org.apache.catalina.session.StandardManager.load(StandardManager.java:375)
       at 
org.apache.catalina.session.StandardManager.start(StandardManager.java:689)
       at 
org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:431)
       at 
org.apache.catalina.startup.ContextConfig.managerConfig(ContextConfig.java:354)
       at 
org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:966)
       at 
org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:249)
       at 
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
       at 
org.apache.catalina.core.StandardContext.start(StandardContext.java:4012)
       at 
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:755)
       at 
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
       at 
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
       at 
org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:777)
       at 
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:497)
       at 
org.apache.catalina.startup.HostConfig.check(HostConfig.java:1156)
       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

Anyone have any ideas?
Gregg