Unknown NPE and Unable to delete Process Instance

[sid121091]

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?

[vasile_dirla]

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?

[martin_grofcik]

Hi,

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

Regards
Martin