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When combining netbeans dev 201712110002 with oracle java 9 (9.0.0), the terminal output is messed up. See screenshot for Java 9. Java 8 output is as usual. The terminal feature is very useful but unusable in the combination mentioned.
When building and running incubating-netbeans as proposed in https://github.com/apache/incubator-netbeans, the bug is no longer present. I followed the steps as given on the incubator page in the exact order and the first thing I tried and noticed is the above. Have a nice holiday and a good change into the new year.
Mh. To early with my previous warning. ant tryme picked up java 8 as the jdk. When setting nbbuild/netbeans/etc/netbeans.conf in netbeans_jdkhome=/usr/lib/jvm/java-9-oracle/ the problem is reprodicably back again. Pity.