Hi, guys! I'm using drools-5.4.0.Final in web project; When I start jboss-eap-6.0.1 in clustered mode it shows this exception in logs: Any suggestions or hints to fix this error/exception? 17:25:58,132 ERROR [org.infinispan.transaction.TransactionCoordinator] (http-/127.0.0.1:8080-4) ISPN000097: Error while processing a prepare in a single-phase transaction: org.infinispan.CacheException: java.lang.NoClassDefFoundError: com/google/protobuf/Message at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:171) at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:183) at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:240) at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:227) at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:222) at org.infinispan.remoting.rpc.RpcManagerImpl.broadcastRpcCommand(RpcManagerImpl.java:201) at org.infinispan.interceptors.ReplicationInterceptor.broadcastPrepare(ReplicationInterceptor.java:136) at org.infinispan.interceptors.ReplicationInterceptor.visitPrepareCommand(ReplicationInterceptor.java:128) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:130) at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:126) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:130) at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:126) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.EntryWrappingInterceptor.visitPrepareCommand(EntryWrappingInterceptor.java:93) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.locking.AbstractTxLockingInterceptor.invokeNextAndCommitIf1Pc(AbstractTxLockingInterceptor.java:120) at org.infinispan.interceptors.locking.OptimisticLockingInterceptor.visitPrepareCommand(OptimisticLockingInterceptor.java:131) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.NotificationInterceptor.visitPrepareCommand(NotificationInterceptor.java:58) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.TxInterceptor.visitPrepareCommand(TxInterceptor.java:106) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.StateTransferLockInterceptor.handleWithRetries(StateTransferLockInterceptor.java:213) at org.infinispan.interceptors.StateTransferLockInterceptor.visitPrepareCommand(StateTransferLockInterceptor.java:85) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:130) at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:126) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:132) at org.infinispan.interceptors.InvocationContextInterceptor.handleDefault(InvocationContextInterceptor.java:91) at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:126) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.BatchingInterceptor.handleDefault(BatchingInterceptor.java:86) at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:126) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.InterceptorChain.invoke(InterceptorChain.java:345) at org.infinispan.transaction.TransactionCoordinator.commit(TransactionCoordinator.java:174) at org.infinispan.transaction.synchronization.SynchronizationAdapter.afterCompletion(SynchronizationAdapter.java:81) at org.infinispan.transaction.tm.DummyTransaction.notifyAfterCompletion(DummyTransaction.java:285) at org.infinispan.transaction.tm.DummyTransaction.runCommitTx(DummyTransaction.java:334) at org.infinispan.transaction.tm.DummyTransaction.commit(DummyTransaction.java:91) at org.infinispan.transaction.tm.DummyBaseTransactionManager.commit(DummyBaseTransactionManager.java:102) at org.jboss.as.clustering.web.impl.TransactionBatchingManager.endBatch(TransactionBatchingManager.java:75) at org.jboss.as.web.session.DistributableSessionManager.processSessionRepl(DistributableSessionManager.java:1515) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.jboss.as.web.session.DistributableSessionManager.storeSession(DistributableSessionManager.java:857) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.jboss.as.web.session.InstantSnapshotManager.snapshot(InstantSnapshotManager.java:47) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.jboss.as.web.session.ClusteredSessionValve.handleRequest(ClusteredSessionValve.java:142) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.jboss.as.web.session.ClusteredSessionValve.invoke(ClusteredSessionValve.java:99) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.jboss.as.web.session.JvmRouteValve.invoke(JvmRouteValve.java:92) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.jboss.as.web.session.LockingValve.invoke(LockingValve.java:64) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:489) [jbossweb-7.0.17.Final-redhat-1.jar:] at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.17.Final-redhat-1.jar:] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.17.Final-redhat-1.jar:] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.17.Final-redhat-1.jar:] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:372) [jbossweb-7.0.17.Final-redhat-1.jar:] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.17.Final-redhat-1.jar:] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:679) [jbossweb-7.0.17.Final-redhat-1.jar:] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:931) [jbossweb-7.0.17.Final-redhat-1.jar:] at java.lang.Thread.run(Thread.java:680) [classes.jar:1.6.0_35] Caused by: java.lang.NoClassDefFoundError: com/google/protobuf/Message at org.drools.marshalling.impl.ProtobufMarshaller.marshall(ProtobufMarshaller.java:169) [drools-core-5.4.0.Final.jar:5.4.0.Final] at org.drools.marshalling.impl.ProtobufMarshaller.marshall(ProtobufMarshaller.java:151) [drools-core-5.4.0.Final.jar:5.4.0.Final] at org.drools.reteoo.ReteooStatefulSession.writeExternal(ReteooStatefulSession.java:117) [drools-core-5.4.0.Final.jar:5.4.0.Final] at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:873) at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1063) at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:885) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:680) at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62) at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119) at org.jboss.as.clustering.SimpleMarshalledValue.getBytes(SimpleMarshalledValue.java:85) at org.jboss.as.clustering.SimpleMarshalledValue.writeExternal(SimpleMarshalledValue.java:175) at org.jboss.as.clustering.infinispan.io.ExternalizableExternalizer.writeObject(ExternalizableExternalizer.java:46) at org.jboss.as.clustering.infinispan.io.ExternalizableExternalizer.writeObject(ExternalizableExternalizer.java:36) at org.infinispan.marshall.jboss.ExternalizerTable$ForeignExternalizerAdapter.writeObject(ExternalizerTable.java:450) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:145) at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62) at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119) at org.infinispan.atomic.PutOperation$Externalizer.writeObject(PutOperation.java:80) at org.infinispan.atomic.PutOperation$Externalizer.writeObject(PutOperation.java:76) at org.infinispan.marshall.jboss.ExternalizerTable$ExternalizerAdapter.writeObject(ExternalizerTable.java:401) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:145) at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62) at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119) at org.infinispan.marshall.MarshallUtil.marshallCollection(MarshallUtil.java:48) at org.infinispan.marshall.exts.LinkedListExternalizer.writeObject(LinkedListExternalizer.java:50) at org.infinispan.marshall.exts.LinkedListExternalizer.writeObject(LinkedListExternalizer.java:45) at org.infinispan.marshall.jboss.ExternalizerTable$ExternalizerAdapter.writeObject(ExternalizerTable.java:401) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:145) at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62) at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119) at org.infinispan.atomic.AtomicHashMapDelta$Externalizer.writeObject(AtomicHashMapDelta.java:110) at org.infinispan.atomic.AtomicHashMapDelta$Externalizer.writeObject(AtomicHashMapDelta.java:106) at org.infinispan.marshall.jboss.ExternalizerTable$ExternalizerAdapter.writeObject(ExternalizerTable.java:401) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:145) at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62) at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119) at org.infinispan.marshall.exts.ReplicableCommandExternalizer.writeCommandParameters(ReplicableCommandExternalizer.java:83) at org.infinispan.marshall.exts.ReplicableCommandExternalizer.writeObject(ReplicableCommandExternalizer.java:70) at org.infinispan.marshall.exts.ReplicableCommandExternalizer.writeObject(ReplicableCommandExternalizer.java:58) at org.infinispan.marshall.jboss.ExternalizerTable$ExternalizerAdapter.writeObject(ExternalizerTable.java:401) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:145) at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62) at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119) at org.infinispan.marshall.exts.ReplicableCommandExternalizer.writeCommandParameters(ReplicableCommandExternalizer.java:85) at org.infinispan.marshall.exts.CacheRpcCommandExternalizer.marshallParameters(CacheRpcCommandExternalizer.java:124) at org.infinispan.marshall.exts.CacheRpcCommandExternalizer.writeObject(CacheRpcCommandExternalizer.java:111) at org.infinispan.marshall.exts.CacheRpcCommandExternalizer.writeObject(CacheRpcCommandExternalizer.java:66) at org.infinispan.marshall.jboss.ExternalizerTable$ExternalizerAdapter.writeObject(ExternalizerTable.java:401) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:145) at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62) at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119) at org.infinispan.marshall.jboss.AbstractJBossMarshaller.objectToObjectStream(AbstractJBossMarshaller.java:96) at org.infinispan.marshall.VersionAwareMarshaller.objectToBuffer(VersionAwareMarshaller.java:91) at org.infinispan.marshall.AbstractMarshaller.objectToBuffer(AbstractMarshaller.java:64) at org.infinispan.marshall.AbstractDelegatingMarshaller.objectToBuffer(AbstractDelegatingMarshaller.java:109) at org.infinispan.remoting.transport.jgroups.MarshallerAdapter.objectToBuffer(MarshallerAdapter.java:45) at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.marshallCall(CommandAwareRpcDispatcher.java:255) at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.processSingleCall(CommandAwareRpcDispatcher.java:274) at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.invokeRemoteCommand(CommandAwareRpcDispatcher.java:165) at org.infinispan.remoting.transport.jgroups.JGroupsTransport.invokeRemotely(JGroupsTransport.java:489) at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:161) ... 71 more Caused by: java.lang.ClassNotFoundException: com.google.protobuf.Message from [Module "deployment.sms.war:main" from Service Module Loader] at org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190) at org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:468) at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:456) at org.jboss.modules.ConcurrentClassLoader.performLoadClassChecked(ConcurrentClassLoader.java:423) at org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:398) at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120) ... 133 more -- View this message in context: http://drools.46999.n3.nabble.com/Drools-has-some-exception-when-running-... 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I know about classpath, but it works in *non-clustered* mode, ok I added *com.google.protobuf:protobuf-java:2.3.0* to my classpath, then appeared another exception: 18:35:31,039 ERROR [org.infinispan.transaction.TransactionCoordinator] ISPN000097: Error while processing a prepare in a single-phase transaction: org.infinispan.CacheException: java.lang.NoClassDefFoundError: org/drools/marshalling/impl/ProtobufMessages$RuleData

at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:171) at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:183) at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:240) at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:227) at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:222) at org.infinispan.remoting.rpc.RpcManagerImpl.broadcastRpcCommand(RpcManagerImpl.java:201) at org.infinispan.interceptors.ReplicationInterceptor.broadcastPrepare(ReplicationInterceptor.java:136) at org.infinispan.interceptors.ReplicationInterceptor.visitPrepareCommand(ReplicationInterceptor.java:128) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:130) at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:126) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:130) at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:126) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.EntryWrappingInterceptor.visitPrepareCommand(EntryWrappingInterceptor.java:93) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.locking.AbstractTxLockingInterceptor.invokeNextAndCommitIf1Pc(AbstractTxLockingInterceptor.java:120) at org.infinispan.interceptors.locking.OptimisticLockingInterceptor.visitPrepareCommand(OptimisticLockingInterceptor.java:131) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.NotificationInterceptor.visitPrepareCommand(NotificationInterceptor.java:58) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.TxInterceptor.visitPrepareCommand(TxInterceptor.java:106) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.StateTransferLockInterceptor.handleWithRetries(StateTransferLockInterceptor.java:213) at org.infinispan.interceptors.StateTransferLockInterceptor.visitPrepareCommand(StateTransferLockInterceptor.java:85) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.base.CommandInterceptor.handleDefault(CommandInterceptor.java:130) at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:126) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.InvocationContextInterceptor.handleAll(InvocationContextInterceptor.java:132) at org.infinispan.interceptors.InvocationContextInterceptor.handleDefault(InvocationContextInterceptor.java:91) at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:126) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.base.CommandInterceptor.invokeNextInterceptor(CommandInterceptor.java:116) at org.infinispan.interceptors.BatchingInterceptor.handleDefault(BatchingInterceptor.java:86) at org.infinispan.commands.AbstractVisitor.visitPrepareCommand(AbstractVisitor.java:126) at org.infinispan.commands.tx.PrepareCommand.acceptVisitor(PrepareCommand.java:133) at org.infinispan.interceptors.InterceptorChain.invoke(InterceptorChain.java:345) at org.infinispan.transaction.TransactionCoordinator.commit(TransactionCoordinator.java:174) at org.infinispan.transaction.synchronization.SynchronizationAdapter.afterCompletion(SynchronizationAdapter.java:81) at org.infinispan.transaction.tm.DummyTransaction.notifyAfterCompletion(DummyTransaction.java:285) at org.infinispan.transaction.tm.DummyTransaction.runCommitTx(DummyTransaction.java:334) at org.infinispan.transaction.tm.DummyTransaction.commit(DummyTransaction.java:91) at org.infinispan.transaction.tm.DummyBaseTransactionManager.commit(DummyBaseTransactionManager.java:102) at org.jboss.as.clustering.web.impl.TransactionBatchingManager.endBatch(TransactionBatchingManager.java:75) at org.jboss.as.web.session.DistributableSessionManager.processSessionRepl(DistributableSessionManager.java:1515) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.jboss.as.web.session.DistributableSessionManager.storeSession(DistributableSessionManager.java:857) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.jboss.as.web.session.InstantSnapshotManager.snapshot(InstantSnapshotManager.java:47) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.jboss.as.web.session.ClusteredSessionValve.handleRequest(ClusteredSessionValve.java:142) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.jboss.as.web.session.ClusteredSessionValve.invoke(ClusteredSessionValve.java:99) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.jboss.as.web.session.JvmRouteValve.invoke(JvmRouteValve.java:92) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.jboss.as.web.session.LockingValve.invoke(LockingValve.java:64) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:489) [jbossweb-7.0.17.Final-redhat-1.jar:] at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169) [jboss-as-web-7.1.3.Final-redhat-4.jar:7.1.3.Final-redhat-4] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.17.Final-redhat-1.jar:] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.17.Final-redhat-1.jar:] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.17.Final-redhat-1.jar:] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:372) [jbossweb-7.0.17.Final-redhat-1.jar:] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.17.Final-redhat-1.jar:] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:679) [jbossweb-7.0.17.Final-redhat-1.jar:] at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:931) [jbossweb-7.0.17.Final-redhat-1.jar:] at java.lang.Thread.run(Thread.java:680) [classes.jar:1.6.0_35] Caused by: java.lang.NoClassDefFoundError: org/drools/marshalling/impl/ProtobufMessages$RuleData at org.drools.marshalling.impl.ProtobufOutputMarshaller.serializeSession(ProtobufOutputMarshaller.java:110) [drools-core-5.4.0.Final.jar:5.4.0.Final] at org.drools.marshalling.impl.ProtobufOutputMarshaller.writeSession(ProtobufOutputMarshaller.java:100) [drools-core-5.4.0.Final.jar:5.4.0.Final] at org.drools.marshalling.impl.ProtobufMarshaller.marshall(ProtobufMarshaller.java:169) [drools-core-5.4.0.Final.jar:5.4.0.Final] at org.drools.marshalling.impl.ProtobufMarshaller.marshall(ProtobufMarshaller.java:151) [drools-core-5.4.0.Final.jar:5.4.0.Final] at org.drools.reteoo.ReteooStatefulSession.writeExternal(ReteooStatefulSession.java:117) [drools-core-5.4.0.Final.jar:5.4.0.Final] at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:873) at org.jboss.marshalling.river.RiverMarshaller.doWriteFields(RiverMarshaller.java:1063) at org.jboss.marshalling.river.RiverMarshaller.doWriteSerializableObject(RiverMarshaller.java:1019) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:885) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:680) at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62) at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119) at org.jboss.as.clustering.SimpleMarshalledValue.getBytes(SimpleMarshalledValue.java:85) at org.jboss.as.clustering.SimpleMarshalledValue.writeExternal(SimpleMarshalledValue.java:175) at org.jboss.as.clustering.infinispan.io.ExternalizableExternalizer.writeObject(ExternalizableExternalizer.java:46) at org.jboss.as.clustering.infinispan.io.ExternalizableExternalizer.writeObject(ExternalizableExternalizer.java:36) at org.infinispan.marshall.jboss.ExternalizerTable$ForeignExternalizerAdapter.writeObject(ExternalizerTable.java:450) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:145) at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62) at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119) at org.infinispan.atomic.PutOperation$Externalizer.writeObject(PutOperation.java:80) at org.infinispan.atomic.PutOperation$Externalizer.writeObject(PutOperation.java:76) at org.infinispan.marshall.jboss.ExternalizerTable$ExternalizerAdapter.writeObject(ExternalizerTable.java:401) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:145) at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62) at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119) at org.infinispan.marshall.MarshallUtil.marshallCollection(MarshallUtil.java:48) at org.infinispan.marshall.exts.LinkedListExternalizer.writeObject(LinkedListExternalizer.java:50) at org.infinispan.marshall.exts.LinkedListExternalizer.writeObject(LinkedListExternalizer.java:45) at org.infinispan.marshall.jboss.ExternalizerTable$ExternalizerAdapter.writeObject(ExternalizerTable.java:401) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:145) at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62) at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119) at org.infinispan.atomic.AtomicHashMapDelta$Externalizer.writeObject(AtomicHashMapDelta.java:110) at org.infinispan.atomic.AtomicHashMapDelta$Externalizer.writeObject(AtomicHashMapDelta.java:106) at org.infinispan.marshall.jboss.ExternalizerTable$ExternalizerAdapter.writeObject(ExternalizerTable.java:401) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:145) at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62) at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119) at org.infinispan.marshall.exts.ReplicableCommandExternalizer.writeCommandParameters(ReplicableCommandExternalizer.java:83) at org.infinispan.marshall.exts.ReplicableCommandExternalizer.writeObject(ReplicableCommandExternalizer.java:70) at org.infinispan.marshall.exts.ReplicableCommandExternalizer.writeObject(ReplicableCommandExternalizer.java:58) at org.infinispan.marshall.jboss.ExternalizerTable$ExternalizerAdapter.writeObject(ExternalizerTable.java:401) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:145) at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62) at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119) at org.infinispan.marshall.exts.ReplicableCommandExternalizer.writeCommandParameters(ReplicableCommandExternalizer.java:85) at org.infinispan.marshall.exts.CacheRpcCommandExternalizer.marshallParameters(CacheRpcCommandExternalizer.java:124) at org.infinispan.marshall.exts.CacheRpcCommandExternalizer.writeObject(CacheRpcCommandExternalizer.java:111) at org.infinispan.marshall.exts.CacheRpcCommandExternalizer.writeObject(CacheRpcCommandExternalizer.java:66) at org.infinispan.marshall.jboss.ExternalizerTable$ExternalizerAdapter.writeObject(ExternalizerTable.java:401) at org.jboss.marshalling.river.RiverMarshaller.doWriteObject(RiverMarshaller.java:145) at org.jboss.marshalling.AbstractObjectOutput.writeObject(AbstractObjectOutput.java:62) at org.jboss.marshalling.AbstractMarshaller.writeObject(AbstractMarshaller.java:119) at org.infinispan.marshall.jboss.AbstractJBossMarshaller.objectToObjectStream(AbstractJBossMarshaller.java:96) at org.infinispan.marshall.VersionAwareMarshaller.objectToBuffer(VersionAwareMarshaller.java:91) at org.infinispan.marshall.AbstractMarshaller.objectToBuffer(AbstractMarshaller.java:64) at org.infinispan.marshall.AbstractDelegatingMarshaller.objectToBuffer(AbstractDelegatingMarshaller.java:109) at org.infinispan.remoting.transport.jgroups.MarshallerAdapter.objectToBuffer(MarshallerAdapter.java:45) at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.marshallCall(CommandAwareRpcDispatcher.java:255) at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.processSingleCall(CommandAwareRpcDispatcher.java:274) at org.infinispan.remoting.transport.jgroups.CommandAwareRpcDispatcher.invokeRemoteCommand(CommandAwareRpcDispatcher.java:165) at org.infinispan.remoting.transport.jgroups.JGroupsTransport.invokeRemotely(JGroupsTransport.java:489) at org.infinispan.remoting.rpc.RpcManagerImpl.invokeRemotely(RpcManagerImpl.java:161) ... 71 more Why it appears when I start jboss-eap6 in *clustered* mode? -- View this message in context: http://drools.46999.n3.nabble.com/Drools-has-some-exception-when-running-... 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