We are in the process of migrating from JBossCache 1.3.2 SP3 to 1.4.0GA and one some of our classes appears to no longer work with the new version of JBossCache. Moving back to 1.3.x resolves the issue. Specifically, calling the notify method of the following class results in an exception in 1.4.0GA but not in 1.3.x. Any ideas? Thanks, Ilan Exception ======= ERROR SessionService sendRemoteNotification - Can not send message remotely com.intersolved.xmlserver.global_services.synchronizator.SynchronizationException: Can not notify at com.intersolved.xmlserver.global_services.synchronizator.SynchronizationMetaData.notify(SynchronizationMetaData.java:197) at com.intersolved.xmlserver.global_services.synchronizator.RemoteSynchronizationStorage.notify(RemoteSynchronizationStorage.java:51) at com.intersolved.xmlserver.global_services.session.SessionService.sendRemoteNotification(SessionService.java:586) at com.intersolved.xmlserver.global_services.session.SessionService.resetTimeout(SessionService.java:550) at com.intersolved.xmlserver.global_services.session.SessionService.changeConnection(SessionService.java:339) at com.intersolved.xmlserver.global_services.convertor.PacketConvertorService$4.processOwnCommands(PacketConvertorService.java:216) at com.intersolved.xmlserver.global_services.convertor.PacketConvertorService$4.run(PacketConvertorService.java:161) at com.intersolved.xmlserver.global_services.convertor.PacketConvertorService$5.run(PacketConvertorService.java:310) at java.lang.Thread.run(Thread.java:595) Caused by: com.intersolved.cluster.jsync.SynchronizeException: Can not notify at com.intersolved.cluster.jsync.components.NotificationTreeCacheAOP.notify(NotificationTreeCacheAOP.java:48) at com.intersolved.cluster.jsync.components.Synchronizer.notify(Synchronizer.java:420) at com.intersolved.xmlserver.global_services.synchronizator.SynchronizationMetaData.notify(SynchronizationMetaData.java:195) ... 8 more Caused by: java.lang.RuntimeException: failure to marshal argument(s) at org.jgroups.blocks.RpcDispatcher.callRemoteMethods(RpcDispatcher.java:152) at org.jboss.cache.TreeCache.callRemoteMethods(TreeCache.java:4159) at org.jboss.cache.TreeCache.callRemoteMethods(TreeCache.java:4113) at org.jboss.cache.TreeCache.callRemoteMethods(TreeCache.java:4221) at org.jboss.cache.TreeCache.callRemoteMethods(TreeCache.java:4242) at com.intersolved.cluster.jsync.components.NotificationTreeCacheAOP.notify(NotificationTreeCacheAOP.java:45) ... 10 more Caused by: java.lang.IllegalArgumentException: MethodCall does not have a valid method id. Was this method call created with MethodCallFactory? at org.jboss.cache.marshall.TreeCacheMarshaller140.marshallObject(TreeCacheMarshaller140.java:223) at org.jboss.cache.marshall.TreeCacheMarshaller140.objectToStream(TreeCacheMarshaller140.java:94) at org.jboss.cache.marshall.VersionAwareMarshaller.objectToByteBuffer(VersionAwareMarshaller.java:133) at org.jgroups.blocks.RpcDispatcher.callRemoteMethods(RpcDispatcher.java:145) ... 15 more CLASS ========= public class NotificationTreeCacheAOP extends org.jboss.cache.aop.TreeCacheAop { public void _notify(Serializable transport) { fireNotification(transport); } public void notify(Serializable transport) throws SynchronizeException { try { callRemoteMethods(getMembers(), "_notify", new Class[]{Serializable.class}, new Object[]{transport}, false, true, getSyncReplTimeout()); } catch (Exception exp) { throw new SynchronizeException("Can not notify", exp); } } void fireNotification(Serializable transport) { // Pass notification to listeners. } } View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3961913#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...