Github user markap14 commented on the issue:
https://github.com/apache/nifi/pull/690
@YolandaMDavis after reviewing the NPE I changed my mind - you do appear to
be causing the issue manually :) The NPE was another place where we needed to
verify that the source and destination existed. However, you will sometimes see
that it creates the connection successfully, which is why I didn't think your
method would work to test. The RPG refreshes the ports in the background, so
depending on when you try to create the connection, it may or may not believe
the port exists. Of course, a NullPointer is always wrong, though. Will update
PR to address that.
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