topic NPE on historicVariableInstance.getValue in Alfresco Archive

NPE on historicVariableInstance.getValue

gokceng1 — Mon, 20 Jan 2014 13:14:15 GMT

Hi,I've a process definition which is consisting of service tasks so there is no wait state in it. After calling startProcessInstanceByKey(processDefinitionKey, map);‍‍‍process starts, ends and return. After returning, I'm trying to access a variable which I gave in the map parameter. The parameter

Re: NPE on historicVariableInstance.getValue

martin_grofcik — Tue, 21 Jan 2014 08:10:03 GMT

Hi,

I created small jUnit test for it. - Result is the same. I will have a look on it.

https://github.com/martin-grofcik/Activiti/blob/forum-NPE/modules/activiti-engine/src/test/java/org/activiti/engine/test/api/history/HistoryServiceTest.java

testNativeHistoricVariableInstanceQuery

Regards
Martin

Re: NPE on historicVariableInstance.getValue

gokceng1 — Tue, 21 Jan 2014 10:09:03 GMT

I've used this code at 5.13 but hadn't faced with a problem. Don't know if this helps.
Thank you martin.

Re: NPE on historicVariableInstance.getValue

gokceng1 — Wed, 29 Jan 2014 15:48:06 GMT

Hello martin,
Is there any news about this issue?

Re: NPE on historicVariableInstance.getValue

martin_grofcik — Thu, 30 Jan 2014 07:24:11 GMT

Thank you, and sorry - I did not have time to look at it. But basically the problem is that value retrieval is not done in the activiti command context. That's why value is not fetched from the cache and request to the DB is executed without command context. One possibility is to fetch value in the native query select command (join with ACT_GE_BYTEARRAY table). Could you try it please?