Github user mattyb149 commented on the issue:
https://github.com/apache/nifi/pull/475
The arg part is useful for more than just this case, perhaps it could be
set to a more generic property such as "nifi.additional.java.args" or
something, and done as a separate improvement.
Perhaps the addition of repositories to anywhere in NiFi should be done on
the devs email list as a discussion so everyone can weigh in (as they may not
be watching this PR). The alternative is to add the repositories to a profile
in your own settings.xml (where you have your own profiles with the java.arg
stuff and hadoop.version set appropriately)
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