NullPointerException with boundary event

lisama — Wed, 24 Aug 2011 10:47:14 GMT

I'm trying to built a boundary event into my process, which fires at a specific date and time after a mail task is done. Here is the code snippet of the event: <boundaryEvent id="boundarytimer1" name="" cancelActivity="true" attachedToRef="mailtask1"> <timerEventDefinition> <timeD

Re: NullPointerException with boundary event

frederikherema1 — Wed, 24 Aug 2011 11:43:06 GMT

maybe give a value to the "name" attribute (just a guess)

Re: NullPointerException with boundary event

lisama — Wed, 24 Aug 2011 12:53:52 GMT

Sadly, that doesn't change anything.

Re: NullPointerException with boundary event

frederikherema1 — Wed, 24 Aug 2011 13:04:53 GMT

Can you post the full stacktrace? There should be a nullpointer somewhere as cause…

Re: NullPointerException with boundary event

lisama — Wed, 24 Aug 2011 13:08:51 GMT

Sure, here it is:

14:52:09,240 ERROR [org.springframework.extensions.webscripts.AbstractRuntime] Exception from executeScript - redirecting to status template error: 07240000 Wrapped Exception (with status template): null
org.springframework.extensions.webscripts.WebScriptException: 07240000 Wrapped Exception (with status template): null
 at org.springframework.extensions.webscripts.AbstractWebScript.createStatusException(AbstractWebScript.java:742)
 at org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:167)
 at org.springframework.extensions.webscripts.PresentationContainer.executeScript(PresentationContainer.java:69)
 at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:333)
 at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:189)
 at org.springframework.extensions.webscripts.servlet.WebScriptServlet.service(WebScriptServlet.java:118)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
 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.Http11AprProcessor.process(Http11AprProcessor.java:864)
 at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579)
 at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1665)
 at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.NullPointerException
 at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:30)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AtomicOperationActivityEnd.eventNotificationsCompleted(AtomicOperationActivityEnd.java:70)
 at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:52)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:45)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.end(ExecutionEntity.java:299)
 at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performOutgoingBehavior(BpmnActivityBehavior.java:116)
 at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performDefaultOutgoingBehavior(BpmnActivityBehavior.java:49)
 at org.activiti.engine.impl.bpmn.behavior.FlowNodeActivityBehavior.leave(FlowNodeActivityBehavior.java:44)
 at org.activiti.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.leave(AbstractBpmnActivityBehavior.java:37)
 at org.activiti.engine.impl.bpmn.behavior.MailActivityBehavior.execute(MailActivityBehavior.java:66)
 at org.activiti.engine.impl.pvm.runtime.AtomicOperationActivityExecute.execute(AtomicOperationActivityExecute.java:40)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(AtomicOperationTransitionNotifyListenerStart.java:48)
 at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:52)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:45)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionCreateScope.execute(AtomicOperationTransitionCreateScope.java:44)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerTake.execute(AtomicOperationTransitionNotifyListenerTake.java:61)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionDestroyScope.execute(AtomicOperationTransitionDestroyScope.java:111)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerEnd.eventNotificationsCompleted(AtomicOperationTransitionNotifyListenerEnd.java:36)
 at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:52)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:45)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.take(ExecutionEntity.java:326)
 at org.activiti.engine.impl.bpmn.behavior.ExclusiveGatewayActivityBehavior.leave(ExclusiveGatewayActivityBehavior.java:74)
 at org.activiti.engine.impl.bpmn.behavior.FlowNodeActivityBehavior.execute(FlowNodeActivityBehavior.java:36)
 at org.activiti.engine.impl.pvm.runtime.AtomicOperationActivityExecute.execute(AtomicOperationActivityExecute.java:40)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerStart.eventNotificationsCompleted(AtomicOperationTransitionNotifyListenerStart.java:48)
 at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:52)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:45)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionCreateScope.execute(AtomicOperationTransitionCreateScope.java:44)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerTake.execute(AtomicOperationTransitionNotifyListenerTake.java:61)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionDestroyScope.execute(AtomicOperationTransitionDestroyScope.java:111)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AtomicOperationTransitionNotifyListenerEnd.eventNotificationsCompleted(AtomicOperationTransitionNotifyListenerEnd.java:36)
 at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:52)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.pvm.runtime.AbstractEventAtomicOperation.execute(AbstractEventAtomicOperation.java:45)
 at org.activiti.engine.impl.interceptor.CommandContext.performOperation(CommandContext.java:76)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.performOperation(ExecutionEntity.java:481)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.take(ExecutionEntity.java:326)
 at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performOutgoingBehavior(BpmnActivityBehavior.java:92)
 at org.activiti.engine.impl.bpmn.behavior.BpmnActivityBehavior.performDefaultOutgoingBehavior(BpmnActivityBehavior.java:49)
 at org.activiti.engine.impl.bpmn.behavior.FlowNodeActivityBehavior.leave(FlowNodeActivityBehavior.java:44)
 at org.activiti.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior.leave(AbstractBpmnActivityBehavior.java:37)
 at org.activiti.engine.impl.bpmn.behavior.UserTaskActivityBehavior.signal(UserTaskActivityBehavior.java:74)
 at org.activiti.engine.impl.persistence.entity.ExecutionEntity.signal(ExecutionEntity.java:309)
 at org.activiti.engine.impl.persistence.entity.TaskEntity.complete(TaskEntity.java:148)
 at org.activiti.engine.impl.cmd.CompleteTaskCmd.completeTask(CompleteTaskCmd.java:61)
 at org.activiti.engine.impl.cmd.CompleteTaskCmd.execute(CompleteTaskCmd.java:55)
 at org.activiti.engine.impl.cmd.CompleteTaskCmd.execute(CompleteTaskCmd.java:27)
 at org.activiti.engine.impl.interceptor.CommandExecutorImpl.execute(CommandExecutorImpl.java:24)
 at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:42)
 at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)
 at org.activiti.engine.impl.TaskServiceImpl.complete(TaskServiceImpl.java:148)
 at org.activiti.rest.api.task.TaskOperationPut.executeWebScript(TaskOperationPut.java:56)
 at org.activiti.rest.util.ActivitiWebScript.executeImpl(ActivitiWebScript.java:68)
 at org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:64)
 … 17 more

Re: NullPointerException with boundary event

lisama — Sat, 27 Aug 2011 17:40:12 GMT

Are there any news regarding this? Or are there any more ideas what I might have missed or what I could try to do?

Re: NullPointerException with boundary event

trademak — Sat, 27 Aug 2011 18:44:58 GMT

Hi,

Which version of Activiti are you using?
Can you post the full process with a unit test for us to reproduce the exception?

Thanks,

Re: NullPointerException with boundary event

lisama — Mon, 29 Aug 2011 12:06:14 GMT

I'm using Activiti 5.6.

Here is the Unit test, nothing fancy but it does the trick.


public class ProcessTestUrlaubsantrag {
        
        @Rule
        public ActivitiRule activitiRule = new ActivitiRule();

 @Test
 @Deployment(resources={"diagrams/MyProcess.bpmn20.xml","diagrams/request.form","diagrams/approval.form","diagrams/adjustRequest.form"})
 public void startProcess() {
  RuntimeService runtimeService = activitiRule.getRuntimeService();
  
  Map<String, Object> variableMap = new HashMap<String, Object>();
  variableMap.put("employeeName", "kermit");
  variableMap.put("employeeEmail", "david@localhost");
  variableMap.put("vacationStart", "2011-12-01");
  variableMap.put("vacationEnd", "2011-12-31");
  variableMap.put("workdays", "22");
  variableMap.put("vacationdays", "22");
  variableMap.put("personalCalendar", "true");
  variableMap.put("projectCalendar", "true");
  variableMap.put("vacationCalendar", "true");
  variableMap.put("vacationApproved", true); 
  
  ProcessInstance pi = runtimeService.startProcessInstanceByKey("urlaubsantrag", variableMap);
  
  /*FormService fs = activitiRule.getFormService();
  pi = fs.submitStartFormData(pi.getId(), variableMap);*/
  
  assertNotNull(pi.getId());
  System.out.println("id " + pi.getId() + " "
    + pi.getProcessDefinitionId());
  
  TaskService taskService = activitiRule.getTaskService();
  Task task = taskService.createTaskQuery().singleResult();
  
  assertEquals("Review des Urlaubsantrages", task.getName());
  
  task.setAssignee("kermit");
  taskService.claim(task.getId(), "kermit");
  taskService.complete(task.getId());

                (…some assertEquals…)
 }
}

When I run it, I get the above mentioned errors (NPE). When I remove the boundary timer it all works fine.

I hope that helps!

Re: NullPointerException with boundary event

jbarrez — Mon, 29 Aug 2011 13:48:56 GMT

I'm not following: why do you put the timer event on the mail service task? Do you expect the mail server to deliver the mail slow …?

Re: NullPointerException with boundary event

lisama — Mon, 29 Aug 2011 20:30:10 GMT

No, that's not what I'm expecting, nor do I want to deliver an email slowly. What I intended to do, is to delay the process until a specific date/time is reached. Maybe an intermediate catching event is the better/ right choice for that?

Re: NullPointerException with boundary event

ronald_van_kuij — Mon, 29 Aug 2011 20:46:44 GMT

Correct, that is the better approach

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