[jboss-user] [JBossCache] - Strange ClassCastException in OptimisticCreateIfNotExistsInt

Hi all, I'm experiencing a very strange problem, and would like some insight on what's really happening. I am using TreeCache 2.0.0, under Weblogic 9.2.2. The app is deployed in a cluster with two members. The cache is configured with REPLY_ASYNC mode, and Optimistic Node Locking Scheme. At some point, I would like to refresh completely the data that is present in a given node. Inside a transaction, I remove two data nodes and put new values with updated data. The data is pretty big. It is a SortedSet that holds around 140'000 value objects, each containing a few Strings. When the transaction commit, an error is logged by CacheImpl, with the following stacktrace: | java.lang.ClassCastException: com.myCompany.MyCachedValueObject | at org.jboss.cache.interceptors.OptimisticCreateIfNotExistsInterceptor.invoke(OptimisticCreateIfNotExistsInterceptor.java:57) | at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:76) | at org.jboss.cache.interceptors.OptimisticValidatorInterceptor.invoke(OptimisticValidatorInterceptor.java:67) | at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:76) | at org.jboss.cache.interceptors.OptimisticLockingInterceptor.invoke(OptimisticLockingInterceptor.java:99) | at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:76) | at org.jboss.cache.interceptors.OptimisticReplicationInterceptor.invoke(OptimisticReplicationInterceptor.java:137) | at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:76) | at org.jboss.cache.interceptors.NotificationInterceptor.invoke(NotificationInterceptor.java:32) | at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:76) | at org.jboss.cache.interceptors.TxInterceptor.replayModifications(TxInterceptor.java:511) | at org.jboss.cache.interceptors.TxInterceptor.handleOptimisticPrepare(TxInterceptor.java:373) | at org.jboss.cache.interceptors.TxInterceptor.handleRemotePrepare(TxInterceptor.java:250) | at org.jboss.cache.interceptors.TxInterceptor.invoke(TxInterceptor.java:100) | at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:76) | at org.jboss.cache.interceptors.CacheMgmtInterceptor.invoke(CacheMgmtInterceptor.java:123) | at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:76) | at org.jboss.cache.interceptors.InvocationContextInterceptor.invoke(InvocationContextInterceptor.java:62) | at org.jboss.cache.CacheImpl.invokeMethod(CacheImpl.java:3939) | at org.jboss.cache.CacheImpl._replicate(CacheImpl.java:2853) | 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:585) | at org.jgroups.blocks.MethodCall.invoke(MethodCall.java:330) | at org.jboss.cache.interceptors.CallInterceptor.invoke(CallInterceptor.java:49) | at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:76) | at org.jboss.cache.interceptors.OptimisticNodeInterceptor.invoke(OptimisticNodeInterceptor.java:161) | at org.jboss.cache.interceptors.Interceptor.invoke(Interceptor.java:76) | In the invoke method of OptimisticCreateIfNotExistsInterceptor, the code tries to cast an object into a FQN class. The message accompagnying the log statement is as follows: Message = replication failure with method_call MethodName: optimisticPrepare; MethodIdInteger: 18; Args: (GlobalTransaction:<10.23.65.28:4691>:4, [MethodName: _remove; MethodIdInteger: 40; Args: (GlobalTransaction:<10.23.65.28:4691>:4, /Node1/SubNode/SubSubNode1, true, Ver=2), MethodName: _remove; MethodIdInteger: 40; Args: (GlobalTransaction:<10.23.65.28:4691>:4, /Node1/SubNode/SubSubNode2, true, Ver=2), MethodName: _put; MethodIdInteger: 39; Args: (GlobalTransaction:<10.23.65.28:4691>:4, /Node1/SubNode/SubSubNode1, Node_Key, {Whole_ToString()_Value_Of_SortedSet} Could anybody help me out with this issue? Thanks! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4101192#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...