Hi,
I would like to know if it is ok to store DataObjects in session.
I stored an employee dataobject in session and it worked fine.
however with every restart of tomcat java.io.NotSerializableException is
thrown.
am i doing something wrong. i am using cayenne 3.0m3 and here is the stack
trace -
May 9, 2008 10:46:17 AM org.apache.catalina.session.StandardManager doLoad
SEVERE: IOException while loading persisted sessions:
java.io.WriteAbortedException: writing aborted;
java.io.NotSerializableException:
org.apache.cayenne.cache.MapQueryCache$CacheEntry
java.io.WriteAbortedException: writing aborted;
java.io.NotSerializableException:
org.apache.cayenne.cache.MapQueryCache$CacheEntry
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1333)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at
org.apache.commons.collections.map.AbstractHashedMap.doReadObject(AbstractHashedMap.java:1210)
at
org.apache.commons.collections.map.LRUMap.doReadObject(LRUMap.java:388)
at
org.apache.commons.collections.map.LRUMap.readObject(LRUMap.java:372)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
at
java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:480)
at
org.apache.cayenne.access.DataContext.readObject(DataContext.java:1514)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at
org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1439)
at
org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:942)
at
org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:394)
at
org.apache.catalina.session.StandardManager.load(StandardManager.java:321)
at
org.apache.catalina.session.StandardManager.start(StandardManager.java:637)
at
org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:438)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4271)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
at
org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:626)
at
org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:553)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:488)
at
org.apache.catalina.startup.HostConfig.start(HostConfig.java:1147)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at
org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at
org.apache.catalina.core.StandardService.start(StandardService.java:516)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: java.io.NotSerializableException:
org.apache.cayenne.cache.MapQueryCache$CacheEntry
at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156)
at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at
org.apache.commons.collections.map.AbstractHashedMap.doWriteObject(AbstractHashedMap.java:1180)
at
org.apache.commons.collections.map.LRUMap.doWriteObject(LRUMap.java:380)
at
org.apache.commons.collections.map.LRUMap.writeObject(LRUMap.java:364)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
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.writeSerialData(ObjectOutputStream.java:1474)
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.apache.cayenne.access.DataContext.writeObject(DataContext.java:1484)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
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.apache.catalina.session.StandardSession.writeObject(StandardSession.java:1515)
at
org.apache.catalina.session.StandardSession.writeObjectData(StandardSession.java:959)
at
org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:517)
at
org.apache.catalina.session.StandardManager.unload(StandardManager.java:463)
at
org.apache.catalina.session.StandardManager.stop(StandardManager.java:667)
at
org.apache.catalina.core.StandardContext.stop(StandardContext.java:4512)
at
org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:924)
at
org.apache.catalina.startup.HostConfig.undeployApps(HostConfig.java:1189)
at org.apache.catalina.startup.HostConfig.stop(HostConfig.java:1160)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:313)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at
org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1086)
at
org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1098)
at
org.apache.catalina.core.StandardEngine.stop(StandardEngine.java:448)
at
org.apache.catalina.core.StandardService.stop(StandardService.java:584)
at
org.apache.catalina.core.StandardServer.stop(StandardServer.java:744)
at org.apache.catalina.startup.Catalina.stop(Catalina.java:628)
at org.apache.catalina.startup.Catalina.start(Catalina.java:603)
... 6 more
May 9, 2008 10:46:17 AM org.apache.catalina.session.StandardManager start
SEVERE: Exception loading sessions from persistent storage
java.io.WriteAbortedException: writing aborted;
java.io.NotSerializableException:
org.apache.cayenne.cache.MapQueryCache$CacheEntry
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1333)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at
org.apache.commons.collections.map.AbstractHashedMap.doReadObject(AbstractHashedMap.java:1210)
at
org.apache.commons.collections.map.LRUMap.doReadObject(LRUMap.java:388)
at
org.apache.commons.collections.map.LRUMap.readObject(LRUMap.java:372)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1869)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at
java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1945)
at
java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:480)
at
org.apache.cayenne.access.DataContext.readObject(DataContext.java:1514)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)
at
java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1846)
at
java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)
at
java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)
at
org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1439)
at
org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:942)
at
org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:394)
at
org.apache.catalina.session.StandardManager.load(StandardManager.java:321)
at
org.apache.catalina.session.StandardManager.start(StandardManager.java:637)
at
org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:438)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4271)
at
org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
at
org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
at
org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)
at
org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:626)
at
org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:553)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:488)
at
org.apache.catalina.startup.HostConfig.start(HostConfig.java:1147)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
at
org.apache.catalina.core.StandardHost.start(StandardHost.java:719)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at
org.apache.catalina.core.StandardService.start(StandardService.java:516)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
at org.apache.catalina.startup.Catalina.start(Catalina.java:578)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)
Caused by: java.io.NotSerializableException:
org.apache.cayenne.cache.MapQueryCache$CacheEntry
at
java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156)
at
java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
at
org.apache.commons.collections.map.AbstractHashedMap.doWriteObject(AbstractHashedMap.java:1180)
at
org.apache.commons.collections.map.LRUMap.doWriteObject(LRUMap.java:380)
at
org.apache.commons.collections.map.LRUMap.writeObject(LRUMap.java:364)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
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.writeSerialData(ObjectOutputStream.java:1474)
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.apache.cayenne.access.DataContext.writeObject(DataContext.java:1484)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
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.apache.catalina.session.StandardSession.writeObject(StandardSession.java:1515)
at
org.apache.catalina.session.StandardSession.writeObjectData(StandardSession.java:959)
at
org.apache.catalina.session.StandardManager.doUnload(StandardManager.java:517)
at
org.apache.catalina.session.StandardManager.unload(StandardManager.java:463)
at
org.apache.catalina.session.StandardManager.stop(StandardManager.java:667)
at
org.apache.catalina.core.StandardContext.stop(StandardContext.java:4512)
at
org.apache.catalina.core.ContainerBase.removeChild(ContainerBase.java:924)
at
org.apache.catalina.startup.HostConfig.undeployApps(HostConfig.java:1189)
at org.apache.catalina.startup.HostConfig.stop(HostConfig.java:1160)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:313)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at
org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1086)
at
org.apache.catalina.core.ContainerBase.stop(ContainerBase.java:1098)
at
org.apache.catalina.core.StandardEngine.stop(StandardEngine.java:448)
at
org.apache.catalina.core.StandardService.stop(StandardService.java:584)
at
org.apache.catalina.core.StandardServer.stop(StandardServer.java:744)
at org.apache.catalina.startup.Catalina.stop(Catalina.java:628)
at org.apache.catalina.startup.Catalina.start(Catalina.java:603)
... 6 more
regards,
John Emmanuel
This archive was generated by hypermail 2.0.0 : Fri May 09 2008 - 01:32:32 EDT