Adding a FK constraint is not recommended.
If you read the JIRA you will notice in a later comment I say " Am 99.9% sure this is due to using a non transacted datastore so closing." In other words the FK comment is a *red herring*
Also, you didn't mention what version of JBM you are using...
We are using 1.4.0.SP3.
Can you please explain again why adding a FK is not recommended.
What do you suggest we do?
If you can produce a step by step description of how to replicate this issue we can re-open the JIRA and take a look.
Unfortunately I can't.
We can't reproduce this bug. And it happened to us only once.
You wrote in the JIRA:
JBM will only work with a transacted data store.
Do you know how I can check that for Oracle DB?