Just in case someone has the same question; I gathered some information from lists.apple.com/archives/java-dev and the gist of it is http://lists.apple.com/archives/java-dev/2012/Oct/msg00144.html .
Considering what seems to be a great amount of work to get proper HiDPI support (code and integration) , the number of devices/apps/devs concerned and the Apple/Java platform market/interest, the rMBP is not a recommendable JDK7 (dev) platform (and that probably wont change with JDK8 either...). -- View this message in context: http://openjdk.5641.n7.nabble.com/8000629-macosx-Blurry-rendering-with-Java-7-on-Retina-display-tp107812p108823.html Sent from the OpenJDK AWT Development mailing list archive at Nabble.com.