[jboss-user] [jBPM] - how to setVariable

[johennes fan]

johennes fan [https://community.jboss.org/people/johennes] created the discussion

"how to setVariable"

To view the discussion, visit: https://community.jboss.org/message/776174#776174

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Hello,
After the process was started,I wan't to change the variable.
Then I use this code:
((WorkflowProcessInstanceImpl) ksession.getProcessInstance(processid)).setVariable("aa", "bb")
But it always call "java.lang.NullPointerException",I don't know why.  The code "getVariable()" works well. 


Anyone can help me ?
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