Error from Fork element with transitions to FreeMarker forms

[pektop]

Hello,
The problem is that I need to fork workflow, and got his error in jBPM console:

root cause
java.lang.NullPointerException
 org.jbpm.integration.console.forms.TaskFormDispatcher.provideForm(TaskFormDispatcher.java:149)
 org.jbpm.integration.console.forms.FormDispatcherComposite.provideForm(FormDispatcherComposite.java:65)
 sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 java.lang.reflect.Method.invoke(Method.java:597)
 org.jboss.bpm.console.server.util.InvocationProxy.invoke(InvocationProxy.java:64)
 $Proxy143.provideForm(Unknown Source)
 org.jboss.bpm.console.server.FormProcessingFacade.provideForm(FormProcessingFacade.java:181)
 . . . . .

Here is the fork element from the jpdl file:

 <fork name="fork1" g="176,568,48,48">
 <transition to="Pay manufacturer's bill"/>
 <transition to="Make installations"/>
 </fork>

"Pay manufacturer's bill" and "Make installations" are transitions to .ftl forms. If I remove fork element and transition from previous element goes directly to these task elements then everything woks fine. But I need to split the workflow, and fork element is the only way how to do it.
- What I need to do for get fork working?

BR

Oleg Ladizhensky

[jbarrez]

This is an interesting question. I don't from the top of my head how the console will react in this situation. I've added https://jira.jboss.org/jira/browse/JBPM-2516 to investigate the problem and work out a solution if one is needed.

[jbarrez]

Oleg could you provide me the complete process?

Since 2 tasks after a fork should simply create 23 separate tasks, with each a form attached to it.

[pektop]

"jbarrez" wrote:
Oleg could you provide me the complete process?

Sure, here it is.

<?xml version="1.0" encoding="UTF-8"?>

<process name="VacationRequest_bug" xmlns="http://jbpm.org/4.0/jpdl">
 <start form="org/jbpm/examples/taskform_bug/request_vacation.ftl" g="170,16,48,48" name="start">
 <transition to="fork1"/>
 </start>
 <task candidate-users="mike,peter" form="org/jbpm/examples/taskform_bug/verify_request.ftl" g="16,176,178,52" name="verify_request">
 <transition name="accept" to="join1" g="-52,-19"/>
 </task>
 <end g="170,340,48,48" name="vacation_accepted"/>
 <task candidate-users="mike,peter" form="org/jbpm/examples/taskform_bug/verify_request2.ftl" name="verify_request2" g="226,176,114,52">
 <transition name="accept" to="join1" g="-52,-19"/>
 </task>
 <fork name="fork1" g="170,96,48,48">
 <transition to="verify_request"/>
 <transition to="verify_request2"/>
 </fork>
 <join name="join1" g="170,260,48,48">
 <transition to="vacation_accepted"/>
 </join>
</process>

Hope this will help in investigation.

BR
Oleg Ladizhensky