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1) persistence.xml should already exist 2) create persistence unit 3) it occurs random, so there is a need to repeat step 2 several times to reproduce this bug
Created attachment 42052 [details] exception
Still reproducible, TM => 6.0.
I repeated step 2 for 5 times, but with no luck. Erno, can you still reproduce this, and if yes, do you have any particular steps?
Have never seen this issue, so closing. Erno, if you know how to reproduce please reopen with steps.
I think this was reproducible with the given steps at the time, but I can't remember seeing this since my original evaluation.