+++ This bug was initially created as a clone of Bug #1199215 +++

Description of problem:
Sometimes, NullPointerException at RepositoryServiceImpl.getRepositoryHistory() [1] is logged on error level during startup of freshly installed BPMS Business Central.

[1] org.guvnor.structure.backend.repositories.RepositoryServiceImpl.getRepositoryHistory(RepositoryServiceImpl.java:374) [guvnor-structure-backend-6.2.0.Final-redhat-2.jar:6.2.0.Final-redhat-2]

Version-Release number of selected component (if applicable):
BPMS 6.1.0.ER6

How reproducible:
Sometimes/rarely.

Steps to Reproduce:
1. Unzip jboss-bpmsuite-6.1.0.ER6-deployable-eap6.x.zip into EAP 6.4.
2. Start the server, watch console log.

Actual results:
Sometimes NPE is logged on error.

Expected results:
Null reference check should be added to avoid the NPE.

Additional info:

— Additional comment from on 2015-03-06 06:09:24 EST —

Can you please advise the link to download BPMS Business Central?

The installation doesn't look to be completely empty as the log shows "Starting indexing of default://master@repository1/ .." and I'd like to understand where that comes from. Looking at the code there is potential for the NPE to occur if an Organizational Unit references a non-existent Repository... but I'd like to replicate here, locally, before fixing.

— Additional comment from Kris Verlaenen on 2015-03-06 08:46:17 EST —

http://dev138.mw.lab.eng.bos.redhat.com/candidate/bpmsuite-6.1.0.ER6/

Since the product doesn't include the playground repos (-Dorg.kie.demo=false), it uses -Dorg.kie.example=true to create a demo OU, repository and project.

— Additional comment from Jiri Locker on 2015-03-06 09:22:06 EST —

Yep. This is the code responsible for creating repository1 with example project https://github.com/droolsjbpm/kie-wb-distributions/blob/8b96b972c4d037b74f6f13e5fc78da89885cbe48/kie-drools-wb/kie-drools-wb-webapp/src/main/java/org/kie/workbench/drools/backend/server/AppSetup.java#L129-L143.

— Additional comment from on 2015-03-16 11:00:42 EDT —

guvnor
------
(master) http://github.com/droolsjbpm/guvnor/commit/d2fc412ab

This is a work-around; for what appears to be a race condition (that not matter how many times I tried to replicate, was unable). OUs have Repositories associated with them by alias and org.kie.workbench.common.screens.contributors.backend.dataset.ContributorsManager is trying to load the Repository history before the Repository is available.

— Additional comment from on 2015-03-16 11:02:08 EDT —

— Additional comment from on 2015-03-16 11:02:16 EDT —