Hi. I recentrly installed Jdeveloper 12.1.3 and found that there is completely mismatch between the application menu and the place on the screen I am clicking with my mouse. I mean - to click on the "File" menu I actually have to click about 20px to the right and 10px to the left of the actual "File" location on screen.
Probably it is some JDK bug.
Not sure about the fix, but the workaround is just set the DESKTOP_SESSION=mate before starting the Jdeveloper.
I also experienced the same issue on the same OS with sqldeveloper 4.0.2
I was able to run it fine by setting
before starting the sqldeveloper