Github user alopresto commented on the issue:
https://github.com/apache/nifi/pull/2840
Thanks @thenatog. I reviewed this and it looks good. While initially I
tried to run integration tests for the entire project, there is a failing
integration test
`StandardControllerServiceProviderIT.testConcurrencyWithEnablingReferencingServicesGraph:96->testEnableReferencingServicesGraph`
which I opened a ticket for
[NIFI-5375](https://issues.apache.org/jira/browse/NIFI-5375). Building normally
and then running integration tests on just this module is successful. I made
some minor fixes for code style (see [commit
8792f90](https://github.com/alopresto/nifi/commit/12503047009bac80da4858b8fc99da35a8792f90)
on branch NIFI-5374-PR-2840).
I verified against a running instance as well, and will merge this PR.
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