Github user trixpan commented on the issue:
https://github.com/apache/nifi/pull/985
@mcgilman
can you please review this and if in agreement merge it to master?
Current travis-ci settings seem to be unable to reliably build nifi. I
fiddled with Xmx settings, enabled caching and added a license to the
.travis.yml file and it seems to have alleviated the situation.
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