[JBoss jBPM] - Re: HowTo: Use JBPM4 API (on JBoss 5)
by JimDwyer
You need to built a little java class with a method like this:
public void startWorkflow(){
try{
InitialContext ctx = new InitialContext();
ProcessEngine processEngine = (ProcessEngine)ctx.lookup("java:/ProcessEngine");
// ProcessEngine and Services are to be used as singletons. (ie they are threadsafe)
RepositoryService repositoryService = processEngine.getRepositoryService();
ExecutionService executionService = processEngine.getExecutionService();
TaskService taskService = processEngine.getTaskService();
HistoryService historyService = processEngine.getHistoryService();
ManagementService managementService = processEngine.getManagementService();
ProcessInstance processInstance = executionService.startProcessInstanceByKey("AsyncActivity");
System.out.println("ProcessId: " + processInstance.getId());
}catch (NamingException ne){
System.out.println(ne);
}
Then call that from a jsp or something.
<%jsp useBean id="bean" class="org.someco.Test" scope="session" />
<% bean.startWorkflow(); %>
Package the class and jsp into a war, deploy the war on the jboss.
That should do it.
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16 years, 8 months
[JBoss jBPM] - Hibernate error occuring on and off
by raghavarapu
Hi,
We are trying to invoke the jbpm workflows thru database. While running the workflows, we are getting the following errors. Strange thing is when we restart the jboss application server, the failed transaction gets completed without any errors and from then on there are no errors to continue with the further similar transactions. We are being stopped by this error from a week or so.. can anybody throw some light please? Is it related to some configuration changes ?
| 15:02:18,093 ERROR [GraphElement] action threw exception: could not set a field value by reflection setter of com.manu.workflow.jbpm.persistence.Jbpm2IcTask.id
| org.hibernate.PropertyAccessException: could not set a field value by reflection setter of com.manu.workflow.jbpm.persistence.Jbpm2IcTask.id
| at org.hibernate.property.DirectPropertyAccessor$DirectSetter.set(DirectPropertyAccessor.java:114)
| at org.hibernate.tuple.entity.AbstractEntityTuplizer.setIdentifier(AbstractEntityTuplizer.java:234)
| at org.hibernate.persister.entity.AbstractEntityPersister.setIdentifier(AbstractEntityPersister.java:3624)
| at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:194)
| at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:144)
| at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:210)
| at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:56)
| at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:195)
| at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:50)
| at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
| at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:562)
| at org.hibernate.impl.SessionImpl.save(SessionImpl.java:550)
| at org.hibernate.impl.SessionImpl.save(SessionImpl.java:546)
| at com.manu.workflow.jbpm.action.TaskAction$Assign.execute(TaskAction.java:116)
| at org.jbpm.graph.def.Action.execute(Action.java:125)
| at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:281)
| at org.jbpm.graph.def.GraphElement.executeActions(GraphElement.java:238)
| at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:212)
| at sun.reflect.GeneratedMethodAccessor296.invoke(Unknown Source)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
| at org.jbpm.graph.def.ProcessDefinition_$$_javassist_12.fireAndPropagateEvent(ProcessDefinition_$$_javassist_12.java)
| at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:225)
| at sun.reflect.GeneratedMethodAccessor296.invoke(Unknown Source)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
| at org.jbpm.graph.node.TaskNode_$$_javassist_48.fireAndPropagateEvent(TaskNode_$$_javassist_48.java)
| at org.jbpm.graph.def.GraphElement.fireAndPropagateEvent(GraphElement.java:225)
| at org.jbpm.graph.def.GraphElement.fireEvent(GraphElement.java:195)
| at org.jbpm.taskmgmt.exe.TaskInstance.setActorId(TaskInstance.java:271)
| at org.jbpm.taskmgmt.exe.TaskInstance.setActorId(TaskInstance.java:243)
| at org.jbpm.taskmgmt.exe.TaskInstance.copySwimlaneInstanceAssignment(TaskInstance.java:223)
| at org.jbpm.taskmgmt.exe.TaskInstance.assign(TaskInstance.java:188)
| at org.jbpm.taskmgmt.exe.TaskMgmtInstance.createTaskInstance(TaskMgmtInstance.java:216)
| at org.jbpm.graph.node.TaskNode.execute(TaskNode.java:180)
| at org.jbpm.graph.def.Node.enter(Node.java:388)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
| at org.jbpm.graph.def.Node_$$_javassist_82.enter(Node_$$_javassist_82.java)
| at org.jbpm.graph.def.Transition.take(Transition.java:166)
| at org.jbpm.graph.def.Node.leave(Node.java:477)
| at org.jbpm.graph.exe.ExecutionContext.leaveNode(ExecutionContext.java:156)
| at org.jbpm.graph.node.Decision.execute(Decision.java:165)
| at org.jbpm.graph.def.Node.enter(Node.java:388)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
| at org.jbpm.graph.def.Node_$$_javassist_82.enter(Node_$$_javassist_82.java)
| at org.jbpm.graph.def.Transition.take(Transition.java:166)
| at org.jbpm.graph.def.Node.leave(Node.java:477)
| at org.jbpm.graph.node.StartState.leave(StartState.java:80)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
| at org.jbpm.graph.def.Node_$$_javassist_82.leave(Node_$$_javassist_82.java)
| at org.jbpm.graph.exe.Token.signal(Token.java:226)
| at org.jbpm.graph.exe.Token.signal(Token.java:149)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
| at org.jbpm.graph.exe.Token_$$_javassist_14.signal(Token_$$_javassist_14.java)
| at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:304)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
| at org.jbpm.graph.exe.ProcessInstance_$$_javassist_87.signal(ProcessInstance_$$_javassist_87.java)
| at com.manu.workflow.jbpm.action.AsyncAction.execute(AsyncAction.java:29)
| at org.jbpm.graph.def.Action.execute(Action.java:125)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
| at org.jbpm.graph.def.Action_$$_javassist_34.execute(Action_$$_javassist_34.java)
| at org.jbpm.graph.def.GraphElement.executeAction(GraphElement.java:281)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
| at org.jbpm.graph.def.Node_$$_javassist_82.executeAction(Node_$$_javassist_82.java)
| at org.jbpm.job.ExecuteActionJob.execute(ExecuteActionJob.java:39)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:197)
| at org.jbpm.job.Job_$$_javassist_86.execute(Job_$$_javassist_86.java)
| at org.jbpm.ejb.impl.ExecuteJobCommand.executeJob(ExecuteJobCommand.java:72)
| at org.jbpm.ejb.impl.ExecuteJobCommand.execute(ExecuteJobCommand.java:52)
| at org.jbpm.ejb.impl.CommandServiceBean.execute(CommandServiceBean.java:110)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.jboss.invocation.Invocation.performCall(Invocation.java:386)
| at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:228)
| at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:156)
| at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.java:173)
| at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:63)
| at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:121)
| at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:350)
| at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:181)
| at org.jboss.ejb.plugins.SecurityInterceptor.process(SecurityInterceptor.java:228)
| at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:211)
| at org.jboss.ejb.plugins.security.PreSecurityInterceptor.process(PreSecurityInterceptor.java:97)
| at org.jboss.ejb.plugins.security.PreSecurityInterceptor.invoke(PreSecurityInterceptor.java:81)
| at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:205)
| at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:138)
| at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:650)
| at org.jboss.ejb.Container.invoke(Container.java:1029)
| at org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke(BaseLocalProxyFactory.java:436)
| at org.jboss.ejb.plugins.local.StatelessSessionProxy.invoke(StatelessSessionProxy.java:103)
| at $Proxy123.execute(Unknown Source)
| at org.jbpm.ejb.impl.CommandListenerBean.onMessage(CommandListenerBean.java:119)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.jboss.invocation.Invocation.performCall(Invocation.java:386)
| at org.jboss.ejb.MessageDrivenContainer$ContainerInterceptor.invoke(MessageDrivenContainer.java:513)
| at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.java:156)
| at org.jboss.ejb.plugins.MessageDrivenInstanceInterceptor.invoke(MessageDrivenInstanceInterceptor.java:115)
| at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:63)
| at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:121)
| at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:350)
| at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:181)
| at org.jboss.ejb.plugins.RunAsSecurityInterceptor.process(RunAsSecurityInterceptor.java:133)
| at org.jboss.ejb.plugins.RunAsSecurityInterceptor.invoke(RunAsSecurityInterceptor.java:103)
| at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:205)
| at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:138)
| at org.jboss.ejb.MessageDrivenContainer.internalInvoke(MessageDrivenContainer.java:415)
| at org.jboss.ejb.Container.invoke(Container.java:1029)
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
| at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
| at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
| at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
| at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
| at org.jboss.invocation.local.LocalInvoker$MBeanServerAction.invoke(LocalInvoker.java:169)
| at org.jboss.invocation.local.LocalInvoker.invoke(LocalInvoker.java:118)
| at org.jboss.invocation.InvokerInterceptor.invokeLocal(InvokerInterceptor.java:209)
| at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:195)
| at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:61)
| at org.jboss.ejb.plugins.inflow.MessageEndpointInterceptor.delivery(MessageEndpointInterceptor.java:249)
| at org.jboss.ejb.plugins.inflow.MessageEndpointInterceptor.invoke(MessageEndpointInterceptor.java:128)
| at org.jboss.proxy.ClientMethodInterceptor.invoke(ClientMethodInterceptor.java:74)
| at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:101)
| at $Proxy132.onMessage(Unknown Source)
| at org.jboss.resource.adapter.jms.inflow.JmsServerSession.onMessage(JmsServerSession.java:178)
| at org.jboss.jms.client.container.ClientConsumer.callOnMessageStatic(ClientConsumer.java:160)
| at org.jboss.jms.client.container.SessionAspect.handleRun(SessionAspect.java:831)
| at org.jboss.aop.advice.org.jboss.jms.client.container.SessionAspect_z_handleRun_7496656.invoke(SessionAspect_z_handleRun_7496656.java)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
| at org.jboss.jms.client.container.ClosedInterceptor.invoke(ClosedInterceptor.java:170)
| at org.jboss.aop.advice.PerInstanceInterceptor.invoke(PerInstanceInterceptor.java:86)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102)
| at org.jboss.jms.client.delegate.ClientSessionDelegate.run(ClientSessionDelegate.java)
| at org.jboss.jms.client.JBossSession.run(JBossSession.java:199)
| at org.jboss.resource.adapter.jms.inflow.JmsServerSession.run(JmsServerSession.java:234)
| at org.jboss.resource.work.WorkWrapper.execute(WorkWrapper.java:213)
| at org.jboss.util.threadpool.BasicTaskWrapper.run(BasicTaskWrapper.java:260)
| at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
| at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
| at java.lang.Thread.run(Thread.java:619)
| Caused by: java.lang.IllegalArgumentException: Can not set long field com.manu.workflow.jbpm.persistence.Jbpm2IcTask.id to com.manu.workflow.jbpm.persistence.Jbpm2IcTask
| at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:146)
| at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:150)
| at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(UnsafeFieldAccessorImpl.java:37)
| at sun.reflect.UnsafeLongFieldAccessorImpl.set(UnsafeLongFieldAccessorImpl.java:57)
| at java.lang.reflect.Field.set(Field.java:657)
| at org.hibernate.property.DirectPropertyAccessor$DirectSetter.set(DirectPropertyAccessor.java:102)
| ... 180 more
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16 years, 8 months