Posted by Predrag Bokšić on Dec 27, 2017; 5:12pm
URL: https://forum.jogamp.org/Jogl-Jogamp-on-Java-9-tp4038012p4038447.html

People! Listen to me very carefully.

I know the exact spot where the JVM 9 crashes.

In the file j3d/j3d-core/src/javax/media/j3d/GraphicsConfigTemplate3D.java, in the method...

@Override
public GraphicsConfiguration getBestConfiguration(GraphicsConfiguration[] gc) {
if ((gc == null) || (gc.length == 0) || (gc[0] == null)) {
    return null;
}

synchronized (globalLock) {
    testCfg = gc;

    // It is possible that the followign postRequest will
    // cause request renderer run immediately before
    // runMonitor(WAIT). So we need to set
    // threadWaiting to true.

    threadWaiting = true;

    // Prevent deadlock if invoke from Behavior callback since
    // this thread has to wait Renderer thread to finish but
    // MC can only handle postRequest and put it in Renderer
    // queue when free.

    if (Thread.currentThread() instanceof BehaviorScheduler) {
         VirtualUniverse.mc.sendRenderMessage(gc[0], this,
         // this is not executed
         MasterControl.GETBESTCONFIG);
    } else {
         // this is executed
         VirtualUniverse.mc.postRequest(MasterControl.GETBESTCONFIG, this);
    }

    // this is okay
    runMonitor(J3dThread.WAIT);

    // !!!     this crashes the JVM 9    !!!
    GraphicsConfiguration graphicsConfiguration = (GraphicsConfiguration) testCfg;

    // this is okay
    return graphicsConfiguration;

    }
}