topic Re: Failed to signal transition 'null' from workflow task in Alfresco Archive

Failed to signal transition 'null' from workflow task

pp20218 — Wed, 07 Jul 2010 07:56:58 GMT

Hi All,I am trying a custom advanced workflow but I am not able to finish my job .I am getting the below error. " Please correct the errors below then click Finish.* A system error happened during the operation: 06070004 Failed to signal transition 'null' from workflow task 'jbpm$17'"."Below are my

Re: Failed to signal transition 'null' from workflow task

zaizi — Wed, 07 Jul 2010 08:24:23 GMT

2What error is logged in the alfresco.log file? That will most likely tell you what is wrong with your code.

Ainga

Re: Failed to signal transition 'null' from workflow task

pp20218 — Wed, 07 Jul 2010 08:56:26 GMT

Hi,
Thanx for ur reply.
I saw the log it says org.jbpm.graph.def.DelegationException: 06070005 pooledactors expression '#{people.getGroup('GROUP_engineering')}' evaluates to null.

But I have already a group called "GROUP_engineering" and "GROUP_marketing" with 3 and 1 users respectively.Below are the loog trace.

14:14:50,863 ERROR [org.alfresco.web.ui.common.Utils] A system error happened during the operation: 06070006 Failed to signal transition 'null' from workflow task 'jbpm$19'
org.alfresco.service.cmr.workflow.WorkflowException: 06070006 Failed to signal transition 'null' from workflow task 'jbpm$19'
   at org.alfresco.repo.workflow.jbpm.JBPMEngine.endTask(JBPMEngine.java:1742)
   at org.alfresco.repo.workflow.WorkflowServiceImpl.endTask(WorkflowServiceImpl.java:544)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:304)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
   at org.alfresco.repo.security.permissions.impl.AlwaysProceedMethodInterceptor.invoke(AlwaysProceedMethodInterceptor.java:40)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
   at org.alfresco.repo.security.permissions.impl.ExceptionTranslatorMethodInterceptor.invoke(ExceptionTranslatorMethodInterceptor.java:49)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
   at org.alfresco.repo.audit.AuditMethodInterceptor.invoke(AuditMethodInterceptor.java:147)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
   at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
   at $Proxy43.endTask(Unknown Source)
   at org.alfresco.web.bean.workflow.StartWorkflowWizard.finishImpl(StartWorkflowWizard.java:230)
   at org.alfresco.web.bean.dialog.BaseDialogBean$1.execute(BaseDialogBean.java:124)
   at org.alfresco.web.bean.dialog.BaseDialogBean$1.execute(BaseDialogBean.java:120)
   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:326)
   at org.alfresco.web.bean.dialog.BaseDialogBean.finish(BaseDialogBean.java:130)
   at org.alfresco.web.bean.wizard.WizardManager.finish(WizardManager.java:599)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:132)
   at org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:61)
   at javax.faces.component.UICommand.broadcast(UICommand.java:109)
   at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:97)
   at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:171)
   at org.apache.myfaces.lifecycle.InvokeApplicationExecutor.execute(InvokeApplicationExecutor.java:32)
   at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:95)
   at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:70)
   at javax.faces.webapp.FacesServlet.service(FacesServlet.java:139)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.alfresco.web.app.servlet.AuthenticationFilter.doFilter(AuthenticationFilter.java:110)
   at sun.reflect.GeneratedMethodAccessor445.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.alfresco.repo.management.subsystems.ChainingSubsystemProxyFactory$1.invoke(ChainingSubsystemProxyFactory.java:122)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
   at $Proxy186.doFilter(Unknown Source)
   at org.alfresco.repo.web.filter.beans.BeanProxyFilter.doFilter(BeanProxyFilter.java:88)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.alfresco.repo.web.filter.beans.NullFilter.doFilter(NullFilter.java:74)
   at sun.reflect.GeneratedMethodAccessor445.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.alfresco.repo.management.subsystems.ChainingSubsystemProxyFactory$1.invoke(ChainingSubsystemProxyFactory.java:122)
   at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
   at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
   at $Proxy186.doFilter(Unknown Source)
   at org.alfresco.repo.web.filter.beans.BeanProxyFilter.doFilter(BeanProxyFilter.java:88)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
   at java.lang.Thread.run(Thread.java:595)
Caused by: org.jbpm.graph.def.DelegationException: 06070005 pooledactors expression '#{people.getGroup('GROUP_engineering')}' evaluates to null
   at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignment(TaskMgmtInstance.java:298)
   at org.jbpm.taskmgmt.exe.TaskMgmtInstance.getInitializedSwimlaneInstance(TaskMgmtInstance.java:260)
   at org.jbpm.taskmgmt.exe.TaskInstance.assign(TaskInstance.java:202)
   at org.jbpm.taskmgmt.exe.TaskMgmtInstance.createTaskInstance(TaskMgmtInstance.java:223)
   at org.jbpm.graph.node.TaskNode.execute(TaskNode.java:174)
   at org.jbpm.graph.def.Node.enter(Node.java:390)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157)
   at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$f12830cc.enter(<generated>)
   at org.jbpm.graph.def.Transition.take(Transition.java:167)
   at org.jbpm.graph.def.Node.leave(Node.java:479)
   at org.jbpm.graph.def.Node.leave(Node.java:451)
   at org.jbpm.graph.node.Fork.execute(Fork.java:146)
   at org.jbpm.graph.def.Node.enter(Node.java:390)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157)
   at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$f12830cc.enter(<generated>)
   at org.jbpm.graph.def.Transition.take(Transition.java:167)
   at org.jbpm.graph.def.Node.leave(Node.java:479)
   at org.jbpm.graph.def.Node.leave(Node.java:438)
   at org.jbpm.graph.def.Node.execute(Node.java:429)
   at org.jbpm.graph.def.Node.enter(Node.java:390)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157)
   at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$f12830cc.enter(<generated>)
   at org.jbpm.graph.def.Transition.take(Transition.java:167)
   at org.jbpm.graph.def.Node.leave(Node.java:479)
   at org.jbpm.graph.node.StartState.leave(StartState.java:82)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.invoke(CGLIBLazyInitializer.java:157)
   at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$f12830cc.leave(<generated>)
   at org.jbpm.graph.exe.Token.signal(Token.java:223)
   at org.jbpm.graph.exe.Token.signal(Token.java:150)
   at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:490)
   at org.alfresco.repo.workflow.jbpm.WorkflowTaskInstance.end(WorkflowTaskInstance.java:141)
   at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:406)
   at org.alfresco.repo.workflow.jbpm.JBPMEngine$26.doInJbpm(JBPMEngine.java:1718)
   at org.springmodules.workflow.jbpm31.JbpmTemplate$1.doInHibernate(JbpmTemplate.java:87)
   at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:372)
   at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:338)
   at org.springmodules.workflow.jbpm31.JbpmTemplate.execute(JbpmTemplate.java:80)
   at org.alfresco.repo.workflow.jbpm.JBPMEngine.endTask(JBPMEngine.java:1695)
   … 71 more
Caused by: org.alfresco.service.cmr.workflow.WorkflowException: 06070005 pooledactors expression '#{people.getGroup('GROUP_engineering')}' evaluates to null
   at org.alfresco.repo.workflow.jbpm.AlfrescoAssignment.assign(AlfrescoAssignment.java:140)
   at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignmentDelegation(TaskMgmtInstance.java:320)
   at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignment(TaskMgmtInstance.java:274)
   … 124 more

Regards
PP

Re: Failed to signal transition 'null' from workflow task

pp20218 — Thu, 08 Jul 2010 10:09:43 GMT

Hi,

Can anyone help me pls.

Thanx

Re: Failed to signal transition 'null' from workflow task

thestorm — Mon, 12 Jul 2010 12:59:02 GMT

you have a group "engineering" with at least 1 user inside??

Re: Failed to signal transition 'null' from workflow task

pp20218 — Mon, 12 Jul 2010 13:54:38 GMT

you have a group "engineering" with at least 1 user inside??

YES

Re: Failed to signal transition 'null' from workflow task

thestorm — Wed, 21 Jul 2010 01:37:42 GMT

must be a typo somewhere

did u start a new workflow task or are you trying with the one created with an older version?`(I changed the transition and wondered why i cant execute my wf now till i realized that i need to start a new one that worked fine)

Re: Failed to signal transition 'null' from workflow task

pp20218 — Wed, 21 Jul 2010 04:16:25 GMT

Started a new WF. But didnt work out for me

Re: Failed to signal transition 'null' from workflow task

pp20218 — Wed, 15 Sep 2010 09:58:34 GMT

Hi All,

I have placed
(1)The process definition, publishwhitepaper_processdefinition.xml
(2)Model FilescWorkflowModel.xml
(3)Properties file scWorkflow.properties
under tomcat/webapps/alfresco/WEB-INF/classes/alfresco/workflow location and a class file ExternalReviewNotification.class placed under tomcat/webapps/alfresco/WEB-INF/classes/com/someco/bpm folder.

So when I finish the work flow from Advanced workflow option, I am getting the same error. This example I had taken from Jeff's article on Advanced workflow.

These are the only 4 file changes I have done. But still I am getting the same problem.

Can anyone help me If they have the same problem or used this article before.

Thanks
PP

Re: Failed to signal transition 'null' from workflow task

pp20218 — Fri, 17 Sep 2010 06:46:06 GMT

Can anyone help me pls?

Thanks

Re: Failed to signal transition 'null' from workflow task

solo8788 — Fri, 17 Sep 2010 22:25:56 GMT

must be a typo somewhere

did u start a new workflow task or are you trying with the one created with an older version?`(I changed the transition and wondered why i cant execute my wf now till i realized that i need to start a new one that worked fine)

I'm going to agree with The Storm, Alfresco is case sensitive. It looks like no group called "engineering" exists. When you create the group make sure you are creating the group "engineering" and not "GROUP_engineering", or "GROUP_Engineering", etc.

Re: Failed to signal transition 'null' from workflow task

pp20218 — Sat, 18 Sep 2010 09:47:17 GMT

Hi,
Thanks for your reply.
Have you ever created a custom workflow from scratch?
I am trying to create one but failed.Even I tried with Jeff Pott's Book example.But not working for me.
If you have any help pls share.

Thanks in advance.

Re: Failed to signal transition 'null' from workflow task

solo8788 — Sun, 19 Sep 2010 08:23:09 GMT

Yes I have been able to create workflows from scratch. Can you post a screen capture of your groups page in alfresco explorer?

And after which transition are you getting the error?

also in your bootstrap-context.xml file, update the following code. It will make sure that any new changes to the processdefinition are used.

<props>
<prop key="engineId">jbpm</prop>
<prop key="location">alfresco/workflow/publishwhitepaper_processdefinition.xml</prop>
<prop key="mimetype">text/xml</prop>
<prop key="redeploy">false</prop>
</props>‍‍‍‍‍‍

change "redeploy" to true

Re: Failed to signal transition 'null' from workflow task

pp20218 — Tue, 21 Sep 2010 05:18:36 GMT

Hi,

Thanks for your reply.
What I did is
(1)scModel.xml and scWorkflowModel.xml under companyHome/Data Dictionary/Model folder and selected Model Active checkbox as true.
(2)scWorkflow.properties under Company Home/Data Dictionary/Messages folder.And then using http://localhost:8080/alfresco/faces/jsp/admin/repoadmin-console.jsp url, i gave the command reload message scWorkflow
(3)web-client-config-custom.xml under Web Client Extension folder and using http://localhost:8080/alfresco/faces/jsp/admin/webclientconfig-console.jsp using the command reload.
(4)publishwhitepaper_processdefinition.xml under Workflow Definitions.
(5) uploaded ExternalReviewNotification.class under com\someco\bpm location.
(6) I created the two groups engineering and marketing.

Now when I initiate the advanced workflow, I selected "Publish White paper" workflow in the advanced workflow screen. and clicked next.
In the second screen i have 2 fields one is description and email. I gave the email address and finish.
Now nothing is happening.As you have executed this workflow.Can you help me pls.How you achieved?

Thanks in advance.