Github user bbende commented on the issue:
https://github.com/apache/nifi/pull/1307
@randerzander I wrote a simple Java main method with the following:
```
URI uri = new URI("nifi://techops_web-service.dev_1.techops_dev:42626");
System.out.println("Host: " + uri.getHost());
System.out.println("Port: " + uri.getPort());
```
Sure enough this prints the host as null and the port as -1. From what I
can tell the "_" causes the URI to not parse properly. Since this appears to be
based on the RFC for URIs, I don't think this should hold up merging this in.
I made an additional commit on my branch here
https://github.com/bbende/nifi/commits/NIFI-2585 which in the case where host
is null or port is -1, it will use the string "unknown" so that it looks a
little nicer in the attributes.
Thoughts?
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