I too face this issue, I have one timer getting started for every minute. After a while I shutdown and restart the servers, the stack trace starts to appear when trying to load the timer. any resolutions? Here is the stack trace :
| 18:28:56,891 INFO [DefaultLoadEventListener] Error performing load command | org.hibernate.type.SerializationException: could not deserialize | at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:214) | at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:240) | at org.hibernate.type.SerializableToBlobType.fromBytes(SerializableToBlobType.java:69) | at org.hibernate.type.SerializableToBlobType.get(SerializableToBlobType.java:61) | at org.hibernate.type.AbstractLobType.nullSafeGet(AbstractLobType.java:46) | at org.hibernate.type.AbstractType.hydrate(AbstractType.java:81) | at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:2031) | at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1371) | at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1299) | at org.hibernate.loader.Loader.getRow(Loader.java:1197) | at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:568) | at org.hibernate.loader.Loader.doQuery(Loader.java:689) | at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224) | at org.hibernate.loader.Loader.loadEntity(Loader.java:1784) | at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:48) | at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:42) | at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:2977) | at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:393) | at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:374) | at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:137) | at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:193) | at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:101) | at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:878) | at org.hibernate.impl.SessionImpl.get(SessionImpl.java:815) | at org.hibernate.event.def.DefaultMergeEventListener.entityIsDetached(DefaultMergeEventListener.java:229) | at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:120) | at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:53) | at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:677) | at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:661) | at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:665) | at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:227) | at org.jboss.seam.persistence.EntityManagerProxy.merge(EntityManagerProxy.java:123) | Caused by: java.lang.ClassNotFoundException: org.jboss.seam.core.Dispatcher$TimerHandleProxy | at java.lang.Class.forName0(Native Method) | at java.lang.Class.forName(Class.java:242) | at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:585) | at org.hibernate.util.SerializationHelper$CustomObjectInputStream.resolveClass(SerializationHelper.java:268) | at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1544) | at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1466) | at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1699) | at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305) | at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348) | at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:210) | at org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:240) | at org.hibernate.type.SerializableToBlobType.fromBytes(SerializableToBlobType.java:69) | at org.hibernate.type.SerializableToBlobType.get(SerializableToBlobType.java:61) | at org.hibernate.type.AbstractLobType.nullSafeGet(AbstractLobType.java:46) | at org.hibernate.type.AbstractType.hydrate(AbstractType.java:81) | at org.hibernate.persister.entity.AbstractEntityPersister.hydrate(AbstractEntityPersister.java:2031) | at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:1371) | at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:1299) | at org.hibernate.loader.Loader.getRow(Loader.java:1197) | at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:568) | at org.hibernate.loader.Loader.doQuery(Loader.java:689) | at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224) | at org.hibernate.loader.Loader.loadEntity(Loader.java:1784) | at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:48) | at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:42) | at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:2977) | at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:393) | at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:374) | at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:137) | at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:193) | at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:101) | at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:878) | 18:28:56,896 ERROR [TimerImpl] Error invoking ejbTimeout: javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.type.SerializationException: could not deserialize | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4050136#4050136 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4050136 _______________________________________________ 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