Posted by ac on Jul 13, 2012; 10:03am
URL: https://forum.jogamp.org/stuck-in-Processing-with-with-any-JOGL-release-RC6-Mac-tp4025519.html

Hey guys,

Since a few months ago, I have been using in Processing a set of JOGL jars that I build myself right before RC6. With all the RCs starting from RC6 onwards, OpenGL Processing sketches on Mac OSX (10.6+) would just give an null pointer exception right after displaying the first frame or even before the output window is visible on the screen. The full error stack is the following:

java.lang.NullPointerException
        at processing.mode.java.runner.Runner.findException(Runner.java:652)
        at processing.mode.java.runner.Runner.reportException(Runner.java:597)
        at processing.mode.java.runner.Runner.exception(Runner.java:537)
        at processing.mode.java.runner.EventThread.exceptionEvent(EventThread.java:367)
        at processing.mode.java.runner.EventThread.handleEvent(EventThread.java:255)
        at processing.mode.java.runner.EventThread.run(EventThread.java:89)
Exception in thread "Animation Thread" java.lang.NullPointerException
        at javax.media.opengl.awt.GLCanvas.validateGLDrawable(GLCanvas.java:555)
        at javax.media.opengl.awt.GLCanvas.display(GLCanvas.java:398)
        at processing.opengl.PGL.requestDraw(Unknown Source)
        at processing.opengl.PGraphicsOpenGL.requestDraw(Unknown Source)
        at processing.core.PApplet.run(PApplet.java:1860)
        at java.lang.Thread.run(Thread.java:680)

Processing can use either AWT or NEWT, but the problem happens with both. I was holding on to update JOGL to more a more recent RC hoping that this issue would go away in the meantime, but it didn't. I also run tests with jar files I built from the latest revision from the git repo, and the result is still the same.

It seems to me that something fundamental in the way the GL drawable is handled on OSX changed with RC6, and this has broke OpenGL rendering in Processing ever since.

I'm pretty much stuck with this one at this point, any hints on what to look for will be appreciated.

Thanks,
Andres