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    Concurrency problem when completing two human tasks
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    created by <a href="https://community.jboss.org/people/leosoubeste">Leonardo Soubeste</a> in <i>jBPM</i> - <a href="https://community.jboss.org/message/794995#794995">View the full discussion</a>
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<div class="jive-rendered-content"><p>Hi Everyone.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>I am stuck with a concurrency problem using jBPM 5.3. The error I am facing is similar to this one:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p><a class="jive-link-external-small" href="http://drools.46999.n3.nabble.com/rules-users-Transaction-problems-in-high-concurrency-JBPM-Drools-Hibernate-instalation-td4020798.html" rel="nofollow" target="_blank">http://drools.46999.n3.nabble.com/rules-users-Transaction-problems-in-high-concurrency-JBPM-Drools-Hibernate-instalation-td4020798.html</a></p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>I have a Jbpm 5.3 + RestEasy deployed in Jboss AS 7.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>When I try to make two complete task operations at the same time, the errors arises. This error is not always the same. Some of then are like this:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>*************************</p><p> 15:08:14,228 INFO&#160; [stdout] (http--127.0.0.1-8080-1) AFTER PROCESS NODE TRIGGERED node:test[id=3] process:test[id=</p><p id=":1fw">defaultPackage.test]</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>15:08:14,327 WARN&#160; [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http--127.0.0.1-8080-2) SQL Error: 0, SQLState: null<br/> 15:08:14,332 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (http--127.0.0.1-8080-2) Connection handle has been closed and is unusable<br/>15:08:14,328 WARN&#160; [com.arjuna.ats.arjuna] (http--127.0.0.1-8080-1) ARJUNA012125: TwoPhaseCoordinator.beforeCompletion - failed for SynchronizationImple&lt; 0:ffff0a09fee9:-2b01b383:51080e15:ee, org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization@42e80f7 &gt;: javax.persistence.PersistenceException: error during managed flush<br/> at org.hibernate.ejb.AbstractEntityManagerImpl$CallbackExceptionMapperImpl.mapManagedFlushFailure(AbstractEntityManagerImpl.java:1486) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:109) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization.beforeCompletion(RegisteredSynchronization.java:53) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:76)<br/> at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:273)<br/> at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:93)<br/> at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:164)<br/> at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1165)<br/> at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:117)<br/> at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75)<br/> at org.jboss.tm.usertx.client.ServerVMClientUserTransaction.commit(ServerVMClientUserTransaction.java:167)<br/> at org.springframework.transaction.jta.JtaTransactionManager.doCommit(JtaTransactionManager.java:1010) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:754) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:723) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:393) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:120) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at $Proxy160.answer(Unknown Source)&#160;&#160;&#160;&#160;&#160;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_25]<br/> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_25]<br/> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_25]<br/> at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_25]<br/> at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:155) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:257) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:222) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:211) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:525) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:502) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]<br/> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:]<br/> at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final]<br/> at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]<br/> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:]<br/> at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_25]<br/>Caused by: java.util.ConcurrentModificationException<br/> at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) [rt.jar:1.6.0_25]<br/> at java.util.AbstractList$Itr.next(AbstractList.java:343) [rt.jar:1.6.0_25]<br/> at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:263) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:187) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:326) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1081) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:315) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:104) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> ... 46 more</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>15:08:14,346 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/test].[Resteasy]] (http--127.0.0.1-8080-2) Servlet.service() para servlet Resteasy lanz&#243; excepci&#243;n: org.jboss.resteasy.spi.UnhandledException: java.lang.RuntimeException: Operation failed<br/> at org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:340) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:214) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:190) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:540) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:502) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]<br/> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:]<br/> at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final]<br/> at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]<br/> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:]<br/> at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_25]<br/>Caused by: java.lang.RuntimeException: Operation failed<br/> at org.jbpm.task.service.TaskServiceSession.doOperationInTransaction(TaskServiceSession.java:994) [jbpm-human-task-core-5.3.0.Final.jar:5.3.0.Final]<br/> at org.jbpm.task.service.TaskServiceSession.setOutput(TaskServiceSession.java:842) [jbpm-human-task-core-5.3.0.Final.jar:5.3.0.Final]<br/> at org.jbpm.task.service.TaskServiceSession.taskCompleteOperation(TaskServiceSession.java:495) [jbpm-human-task-core-5.3.0.Final.jar:5.3.0.Final]<br/> at org.jbpm.task.service.TaskServiceSession.taskOperation(TaskServiceSession.java:423) [jbpm-human-task-core-5.3.0.Final.jar:5.3.0.Final]<br/> at org.jbpm.task.service.local.LocalTaskService.complete(LocalTaskService.java:80) [jbpm-human-task-core-5.3.0.Final.jar:5.3.0.Final]<br/> at com.test.ws.JBPMProcessServiceImpl.answer(JBPMProcessServiceImpl.java:120) [classes:]<br/> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_25]<br/> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_25]<br/> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_25]<br/> at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_25]<br/> at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at $Proxy160.answer(Unknown Source)&#160;&#160;&#160;&#160;&#160;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_25]<br/> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_25]<br/> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_25]<br/> at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_25]<br/> at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:155) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:257) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:222) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:211) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:525) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> ... 20 more<br/>Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: Connection handle has been closed and is unusable<br/> at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1361) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1289) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1295) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:859) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.jbpm.task.service.persistence.TaskPersistenceManager.saveEntity(TaskPersistenceManager.java:186) [jbpm-human-task-core-5.3.0.Final.jar:5.3.0.Final]<br/> at org.jbpm.task.service.TaskServiceSession$10.doOperation(TaskServiceSession.java:846) [jbpm-human-task-core-5.3.0.Final.jar:5.3.0.Final]<br/> at org.jbpm.task.service.TaskServiceSession.doOperationInTransaction(TaskServiceSession.java:979) [jbpm-human-task-core-5.3.0.Final.jar:5.3.0.Final]<br/> ... 45 more<br/>Caused by: org.hibernate.exception.GenericJDBCException: Connection handle has been closed and is unusable<br/> at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:52) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:125) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:110) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler.continueInvocation(ConnectionProxyHandler.java:146) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at $Proxy156.prepareStatement(Unknown Source)&#160;&#160;&#160;&#160;&#160;at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$2.doPrepare(StatementPreparerImpl.java:105) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:166) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareStatement(StatementPreparerImpl.java:103) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.prepare(IdentityGenerator.java:89) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:52) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2757) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3268) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:78) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:272) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:304) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:195) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:128) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.ejb.event.EJB3PersistEventListener.saveWithGeneratedId(EJB3PersistEventListener.java:78) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:208) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:151) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:78) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:725) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:701) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:705) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:853) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> ... 48 more<br/>Caused by: java.sql.SQLException: Connection handle has been closed and is unusable<br/> at org.jboss.jca.adapters.jdbc.WrappedConnection.checkStatus(WrappedConnection.java:1611)<br/> at org.jboss.jca.adapters.jdbc.WrappedConnection.checkTransaction(WrappedConnection.java:1588)<br/> at org.jboss.jca.adapters.jdbc.WrappedConnection.prepareStatement(WrappedConnection.java:491)<br/> at sun.reflect.GeneratedMethodAccessor58.invoke(Unknown Source) [:1.6.0_25]<br/> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_25]<br/> at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_25]<br/> at org.hibernate.engine.jdbc.internal.proxy.ConnectionProxyHandler.continueInvocation(ConnectionProxyHandler.java:138) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> ... 70 more</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>15:08:14,528 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/test].[Resteasy]] (http--127.0.0.1-8080-1) Servlet.service() para servlet Resteasy lanz&#243; excepci&#243;n: org.jboss.resteasy.spi.UnhandledException: org.springframework.transaction.UnexpectedRollbackException: JTA transaction unexpectedly rolled back (maybe due to a timeout); nested exception is javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.<br/> at org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:340) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:214) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:190) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:540) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:502) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]<br/> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:]<br/> at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final]<br/> at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]<br/> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:]<br/> at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_25]<br/>Caused by: org.springframework.transaction.UnexpectedRollbackException: JTA transaction unexpectedly rolled back (maybe due to a timeout); nested exception is javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.<br/> at org.springframework.transaction.jta.JtaTransactionManager.doCommit(JtaTransactionManager.java:1013) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:754) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:723) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:393) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:120) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at $Proxy160.answer(Unknown Source)&#160;&#160;&#160;&#160;&#160;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_25]<br/> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_25]<br/> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_25]<br/> at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_25]<br/> at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:155) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:257) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:222) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:211) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:525) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> ... 20 more<br/>Caused by: javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.<br/> at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1177)<br/> at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:117)<br/> at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75)<br/> at org.jboss.tm.usertx.client.ServerVMClientUserTransaction.commit(ServerVMClientUserTransaction.java:167)<br/> at org.springframework.transaction.jta.JtaTransactionManager.doCommit(JtaTransactionManager.java:1010) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> ... 36 more<br/>Caused by: javax.persistence.PersistenceException: error during managed flush<br/> at org.hibernate.ejb.AbstractEntityManagerImpl$CallbackExceptionMapperImpl.mapManagedFlushFailure(AbstractEntityManagerImpl.java:1486) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:109) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization.beforeCompletion(RegisteredSynchronization.java:53) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:76)<br/> at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:273)<br/> at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:93)<br/> at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:164)<br/> at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1165)<br/> ... 40 more<br/>Caused by: java.util.ConcurrentModificationException<br/> at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372) [rt.jar:1.6.0_25]<br/> at java.util.AbstractList$Itr.next(AbstractList.java:343) [rt.jar:1.6.0_25]<br/> at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:263) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:187) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:326) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1081) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:315) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:104) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> ... 46 more<br/> <br/>***********************<br/>and also</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p><br/>14:52:46,846 INFO&#160; [stdout] (http--127.0.0.1-8080-2) BEFORE PROCESS NODE TRIGGERED node:test3[id=5] process:test[id=defaultPackage.test]</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>14:52:46,905 ERROR [org.hibernate.AssertionFailure] (http--127.0.0.1-8080-5) HHH000099: an assertion failure occured (this may indicate a bug in Hibernate, but is more likely due to unsafe use of the session): org.hibernate.AssertionFailure: null id in org.jbpm.task.Content entry (don't flush the Session after an exception occurs)<br/> 14:52:46,916 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/test].[Resteasy]] (http--127.0.0.1-8080-5) Servlet.service() para servlet Resteasy lanz&#243; excepci&#243;n: org.jboss.resteasy.spi.UnhandledException: org.hibernate.AssertionFailure: null id in org.jbpm.task.Content entry (don't flush the Session after an exception occurs)<br/> at org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:340) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:214) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:190) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:540) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:502) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]<br/> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:]<br/> at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final]<br/> at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]<br/> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:]<br/> at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_25]<br/>Caused by: org.hibernate.AssertionFailure: null id in org.jbpm.task.Content entry (don't flush the Session after an exception occurs)<br/> at org.hibernate.event.internal.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:78) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.DefaultFlushEntityEventListener.getValues(DefaultFlushEntityEventListener.java:179) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:141) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:225) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:55) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.internal.SessionImpl.autoFlushIfRequired(SessionImpl.java:1053) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1108) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.internal.QueryImpl.list(QueryImpl.java:101) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:252) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.jbpm.task.service.TaskServiceSession.doUserGroupCallbackOperation(TaskServiceSession.java:1074) [jbpm-human-task-core-5.3.0.Final.jar:5.3.0.Final]<br/> at org.jbpm.task.service.TaskServiceSession.taskOperation(TaskServiceSession.java:400) [jbpm-human-task-core-5.3.0.Final.jar:5.3.0.Final]<br/> at org.jbpm.task.service.local.LocalTaskService.start(LocalTaskService.java:276) [jbpm-human-task-core-5.3.0.Final.jar:5.3.0.Final]<br/> at com.test.ws.JBPMProcessServiceImpl.answer(JBPMProcessServiceImpl.java:110) [classes:]<br/> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_25]<br/> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_25]<br/> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_25]<br/> at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_25]<br/> at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at $Proxy251.answer(Unknown Source)&#160;&#160;&#160;&#160;&#160;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_25]<br/> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_25]<br/> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_25]<br/> at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_25]<br/> at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:155) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:257) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:222) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:211) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:525) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> ... 20 more</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>14:52:47,000 INFO&#160; [stdout] (http--127.0.0.1-8080-2) AFTER PROCESS NODE TRIGGERED node:test3[id=5] process:test[id=defaultPackage.test]</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>14:52:47,094 INFO&#160; [stdout] (http--127.0.0.1-8080-2) AFTER PROCESS NODE TRIGGERED node:test3[id=5] process:test[id=defaultPackage.test]<br/> <br/>14:52:47,098 INFO&#160; [stdout] (http--127.0.0.1-8080-2) AFTER PROCESS NODE TRIGGERED node:test2[id=4] process:test[id=defaultPackage.test]</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>14:52:47,101 INFO&#160; [stdout] (http--127.0.0.1-8080-2) AFTER PROCESS NODE TRIGGERED node:test2[id=4] process:test[id=defaultPackage.test]<br/> <br/>14:52:47,146 WARN&#160; [com.arjuna.ats.arjuna] (http--127.0.0.1-8080-2) ARJUNA012125: TwoPhaseCoordinator.beforeCompletion - failed for SynchronizationImple&lt; 0:ffff0a09fee9:-163b6b3e:51080580:286, org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization@3efa91db &gt;: javax.persistence.OptimisticLockException<br/> at org.hibernate.ejb.AbstractEntityManagerImpl.wrapStaleStateException(AbstractEntityManagerImpl.java:1387) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1308) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1289) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1295) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.ejb.AbstractEntityManagerImpl$CallbackExceptionMapperImpl.mapManagedFlushFailure(AbstractEntityManagerImpl.java:1481) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:109) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization.beforeCompletion(RegisteredSynchronization.java:53) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:76)<br/> at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:273)<br/> at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:93)<br/> at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:164)<br/> at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1165)<br/> at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:117)<br/> at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75)<br/> at org.jboss.tm.usertx.client.ServerVMClientUserTransaction.commit(ServerVMClientUserTransaction.java:167)<br/> at org.springframework.transaction.jta.JtaTransactionManager.doCommit(JtaTransactionManager.java:1010) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:754) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:723) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:393) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:120) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at $Proxy251.answer(Unknown Source)&#160;&#160;&#160;&#160;&#160;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_25]<br/> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_25]<br/> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_25]<br/> at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_25]<br/> at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:155) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:257) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:222) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:211) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:525) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:502) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]<br/> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:]<br/> at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final]<br/> at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]<br/> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:]<br/> at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_25]<br/>Caused by: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [org.jbpm.task.Task#45]<br/> at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:2359) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3010) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2908) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3237) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.action.internal.EntityUpdateAction.execute(EntityUpdateAction.java:113) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:272) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:264) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:187) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:326) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1081) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:315) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:104) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> ... 46 more<br/> <br/>14:52:47,487 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/test].[Resteasy]] (http--127.0.0.1-8080-2) Servlet.service() para servlet Resteasy lanz&#243; excepci&#243;n: org.jboss.resteasy.spi.UnhandledException: org.springframework.transaction.UnexpectedRollbackException: JTA transaction unexpectedly rolled back (maybe due to a timeout); nested exception is javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.<br/> at org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:340) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:214) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:190) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:540) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:502) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at javax.servlet.http.HttpServlet.service(HttpServlet.java:847) [jboss-servlet-api_3.0_spec-1.0.0.Final.jar:1.0.0.Final]<br/> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.13.Final.jar:]<br/> at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.1.Final.jar:7.1.1.Final]<br/> at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:153) [jboss-as-web-7.1.1.Final.jar:7.1.1.Final]<br/> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.13.Final.jar:]<br/> at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.13.Final.jar:]<br/> at java.lang.Thread.run(Thread.java:662) [rt.jar:1.6.0_25]<br/>Caused by: org.springframework.transaction.UnexpectedRollbackException: JTA transaction unexpectedly rolled back (maybe due to a timeout); nested exception is javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.<br/> at org.springframework.transaction.jta.JtaTransactionManager.doCommit(JtaTransactionManager.java:1013) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:754) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:723) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:393) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:120) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) [spring-aop-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> at $Proxy251.answer(Unknown Source)&#160;&#160;&#160;&#160;&#160;at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.6.0_25]<br/> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [rt.jar:1.6.0_25]<br/> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [rt.jar:1.6.0_25]<br/> at java.lang.reflect.Method.invoke(Method.java:597) [rt.jar:1.6.0_25]<br/> at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:155) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:257) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:222) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:211) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:525) [resteasy-jaxrs-2.3.2.Final.jar:]<br/> ... 20 more<br/>Caused by: javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.<br/> at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1177)<br/> at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:117)<br/> at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75)<br/> at org.jboss.tm.usertx.client.ServerVMClientUserTransaction.commit(ServerVMClientUserTransaction.java:167)<br/> at org.springframework.transaction.jta.JtaTransactionManager.doCommit(JtaTransactionManager.java:1010) [spring-tx-3.1.0.RELEASE.jar:3.1.0.RELEASE]<br/> ... 36 more<br/>Caused by: javax.persistence.OptimisticLockException<br/> at org.hibernate.ejb.AbstractEntityManagerImpl.wrapStaleStateException(AbstractEntityManagerImpl.java:1387) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1308) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1289) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1295) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.ejb.AbstractEntityManagerImpl$CallbackExceptionMapperImpl.mapManagedFlushFailure(AbstractEntityManagerImpl.java:1481) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:109) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization.beforeCompletion(RegisteredSynchronization.java:53) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:76)<br/> at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:273)<br/> at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:93)<br/> at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:164)<br/> at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1165)<br/> ... 40 more<br/>Caused by: org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [org.jbpm.task.Task#45]<br/> at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:2359) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3010) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2908) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:3237) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.action.internal.EntityUpdateAction.execute(EntityUpdateAction.java:113) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:272) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:264) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:187) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:326) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1081) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:315) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:104) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]<br/> ... 46 more</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>I have made a simple maven app where I can reproduce the issue. <br/>To run this app, compile it using<strong> mvn clean package</strong>.<br/>Inside <strong>config </strong>folder, there is an standalone.xml file which is the one I am using.<br/> I deployed designer and drools-guvnor 5.4 and I have put a repository_export.xml file inside <strong>config </strong>folder.</p><div>Then put test.<strong>war</strong> file to the jboss AS 7.1.1<strong> standalone/deployments.</strong><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p><strong><br/></strong></p><p>There is a service to view the processes:</p><p><a class="jive-link-external-small" href="http://localhost:8080/test/services/process/processes/available" rel="nofollow" target="_blank">http://localhost:8080/test/services/process/processes/available</a></p><p> Then, start two processes with this call:</p><p><a class="jive-link-external-small" href="http://localhost:8080/test/services/process/startprocess/data?userid=calcacuervo&amp;processid=defaultPackage.test" rel="nofollow" target="_blank">http://localhost:8080/test/services/process/startprocess/data?userid=calcacuervo&amp;processid=defaultPackage.test</a></p><p>Then, for each one you can get the next task for each process instance:</p><p><a class="jive-link-external-small" href="http://localhost:8080/test/services/process/nextTask/data?userid=calcacuervo&amp;processinstance=" rel="nofollow" target="_blank">http://localhost:8080/test/services/process/nextTask/data?userid=calcacuervo&amp;processinstance=</a><strong>41</strong>.</p><p>You will get the task id, and then, using this call you will be able to complete the task. After that you will be able to call the previous service call and a new call will arise:</p><p><a class="jive-link-external-small" href="http://localhost:8080/test/services/process/complete/data?userid=calcacuervo&amp;taskid=55&amp;answer=1" rel="nofollow" target="_blank">http://localhost:8080/test/services/process/complete/data?userid=calcacuervo&amp;taskid=55&amp;answer=1</a></p><p>I have put a breakpoint in com.test.ws.JBPMProcessServiceImpl.answer(String, String, String), and called this <strong>complete</strong> service call twice, and I can reproduce the reported errors.</p><p style="min-height: 8pt; height: 8pt; padding: 0px;">&#160;</p><p>Could you please give me some advice on what I am doing wrong to get these problems?</p><p>Thanks in advance,</p></div><div> </div><div>Leo</div><div>(on behalf of calcacuervo)</div></div>

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