5.2.0 is release, see https://bitbucket.org/atlassian/jira-rest-java-client/pull-requests/93/jrjc-240-added-support-for-accountid#comment-137009716
Kamil Cichy commented on pull request #93:
JRJC-240: Added support for accountId.
First of all I’m sorry it took so long to merge this PR. This is because this plugin is not supported. It means nobody is watching the PR queue and we don’t have any time budgeted to work on this. You should really thank @Andy Heinzer for nudging us to merge it
I reviewed the code to ensure it was backwards-compatible. Then I had to do some extra work to fix the CI for this plugin (it’s been broken since 8.4.0). Only then I was able to release it (the second attempt was successful). I’m only writing this to justify our inability to support this plugin properly. What seems to be a single “merge” click was in fact a couple of hours of work.
Anyway, this PR is merged, plugin version 5.2.0 has been released. Hopefully better late than ever.
Jira Server and DC developer