Github user mcgilman commented on the issue: https://github.com/apache/nifi/pull/583 Hey @jvwing... I had a chance to check out the update. Everything looks good but I do have one other comment that I probably should have noticed before. Given the build details ultimately come from `nifi.properties` I don't think we can rely on their presence. Often times, folks upgrade by retaining their consisting `conf` directory so we typically try to ensure things still work when the properties do not exist. In the System Diagnostics, it probably makes sense to simply populate the fields with a message indicating that the value isn't set. Additionally, you can style the elements with `unset`. In the About dialog is probably makes sense to just not render anything under the version. Currently, it just says 'Tagged'. Thoughts?
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