Github user alopresto commented on the issue:
https://github.com/apache/nifi/pull/2084
Matt and I discussed and I will try to minimize further differences in
order to get this merged in a working state, as he is currently upgrading the
version of Jersey and it changes a lot of the jackson dependencies as well. In
that vein, rather than attempting to remove the `jackson-mapper-asl`
completely, I will remove it from dependency management and explicitly list the
version in child poms. New commit forthcoming.
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