Today I updated my Java to the most recent version 8.121 becasue I notived that documentation server stopped working. Documentation server resumed working but now I get "A Java exception was encountered" error when I try to launch Relations Browers - on any NX version I have installed? Any ideas? Is the Java version too recent?
It looks like you are right... On my system running java 7 update 111, the relations browser starts, on my other system, with 121, it fails.
It would be best to report this issue to GTAC, so we can investigate, and file a PR for this. I would be able to do this myself, but Internal PR's have lower priority, so therefor it's best you report this.
Some new info on this:
Issues with Java 8 update 121, should have been resolved in NX 10.0.3 MP14 and NX 11.0.1 MP1.