topic Unknown NPE and Unable to delete Process Instance in Alfresco Archive

Unknown NPE and Unable to delete Process Instance

sid121091 — Sat, 05 Sep 2015 08:32:41 GMT

Hi, When I try to execute my project, the following error keeps throwing up. The exception is attached with this.As a result I am not able to delete process instance also because of this. Can someone help with what could be the reason for it?

Re: Unknown NPE and Unable to delete Process Instance

vasile_dirla — Mon, 07 Sep 2015 07:46:12 GMT

could you please explain a bit more detailed what kind of setup do you have?
it a clean setup of Activiti, or maybe is something custom, which version.. etc..

as you can see in your log, the NPE is here:
<code>
entity = Context.getCommandContext()
.getByteArrayEntityManager()
.findById(id);
</code>

here could have 2 cases of NPE , the CommandContext or the ByteArrayEntityManager
you could put a breakpoint here and check what exactly is null.

maybe you could create a unit test for this?

Re: Unknown NPE and Unable to delete Process Instance

martin_grofcik — Mon, 07 Sep 2015 12:12:50 GMT

Hi,

jUnit test could help.
http://forums.activiti.org/content/sticky-how-write-unit-test

Regards
Martin