topic ActivitiException: userId is null after transferring task in Alfresco Archive

ActivitiException: userId is null after transferring task

mindcrime — Wed, 20 Mar 2013 19:28:38 GMT

Hey guys, using Activiti 5.10, I'm seeing some hard to explain weirdness. If I, in Java code, transfer a UserTaskto a different user, doing something like this: List<Task> tasks = taskService.createTaskQuery().taskCandidateGroup("management").list(); System.out.println( "for m

Re: ActivitiException: userId is null after transferring task

mindcrime — Wed, 20 Mar 2013 19:34:05 GMT

Also, in case it helps… I can do stuff like this, after doing the transfer:


  List<Task> gonzoTasks = taskService.createTaskQuery().taskOwner("gonzo").list();
  System.out.println( "for gonzo: ");
  for( Task task : gonzoTasks ) 
  {
   System.out.println( "task: " + task.toString() );
   System.out.println( "Owner: " + task.getOwner() );
   System.out.println( "Assignee: " + task.getAssignee());
  }

and it works as expected:


for gonzo: 
task: Task[6311]
Owner: gonzo
Assignee: gonzo

Re: ActivitiException: userId is null after transferring task

mindcrime — Wed, 20 Mar 2013 19:44:47 GMT

Also, FYI, I can complete the task programmatically like this:


  List<Task> gonzoTasks = taskService.createTaskQuery().taskOwner("gonzo").list();
  System.out.println( "for gonzo: ");
  for( Task task : gonzoTasks ) 
  {
   System.out.println( "task: " + task.toString() );
   System.out.println( "Owner: " + task.getOwner() );
   System.out.println( "Assignee: " + task.getAssignee());
  
   taskService.complete(task.getId());
  
  }

and now, if I login as Gonzo, the task has moved from Inbox to Archived as expected, and if I examine the tables, everything looks right. But, still, when rendering the Archived page, I get that same exception as above:


Caused by: org.activiti.engine.ActivitiException: userId is null
 at org.activiti.engine.impl.cmd.GetUserPictureCmd.execute(GetUserPictureCmd.java:39)
 at org.activiti.engine.impl.cmd.GetUserPictureCmd.execute(GetUserPictureCmd.java:28)
 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.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:42)
 at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:130)
 at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:40)
 at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:33)
 at org.activiti.engine.impl.IdentityServiceImpl.getUserPicture(IdentityServiceImpl.java:102)
 at org.activiti.explorer.ui.task.TaskEventsPanel.addTaskEventPicture(TaskEventsPanel.java:134)
 at org.activiti.explorer.ui.task.TaskEventsPanel.addTaskEvents(TaskEventsPanel.java:127)
 at org.activiti.explorer.ui.task.TaskEventsPanel.refreshTaskEvents(TaskEventsPanel.java:93)
 at org.activiti.explorer.ui.task.TaskEventsPanel.setTaskId(TaskEventsPanel.java:102)
 at org.activiti.explorer.ui.task.ArchivedPage.createDetailComponent(ArchivedPage.java:55)
 at org.activiti.explorer.ui.task.TaskPage$1.valueChange(TaskPage.java:116)
 at sun.reflect.GeneratedMethodAccessor115.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:616)
 at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:490)
 … 46 more

Re: ActivitiException: userId is null after transferring task

frederikherema1 — Thu, 21 Mar 2013 08:17:19 GMT

Looks like the person who cause the event (set the owner) is null.

Caused by: org.activiti.engine.ActivitiException: userId is null
   at org.activiti.engine.impl.cmd.GetUserPictureCmd.execute(GetUserPictureCmd.java:39)
   at org.activiti.engine.impl.cmd.GetUserPictureCmd.execute(GetUserPictureCmd.java:28)

Try adding Authentication.setUser (or currentUser, not sure what the exact syntax is) before setting the owner and assignee. This way, explorer will be able to render an image for the event. However, it's an issue that in case of null-userid, an exception is thrown. Can you file a jIra for this issue perhaps?


         taskService.setOwner(task.getId(), "gonzo" ); 
         taskService.setAssignee(task.getId(), "gonzo");

Re: ActivitiException: userId is null after transferring task

mindcrime — Thu, 21 Mar 2013 14:51:19 GMT

Looks like the person who cause the event (set the owner) is null.
Caused by: org.activiti.engine.ActivitiException: userId is null at org.activiti.engine.impl.cmd.GetUserPictureCmd.execute(GetUserPictureCmd.java:39) at org.activiti.engine.impl.cmd.GetUserPictureCmd.execute(GetUserPictureCmd.java:28)
Try adding Authentication.setUser (or currentUser, not sure what the exact syntax is) before setting the owner and assignee. This way, explorer will be able to render an image for the event.

OK, I'll give that a try.

However, it's an issue that in case of null-userid, an exception is thrown. Can you file a jIra for this issue perhaps?
taskService.setOwner(task.getId(), "gonzo" ); taskService.setAssignee(task.getId(), "gonzo");

OK, no problem.