997 2014-03-09 13:41:39 +0100 Error on dispose 2014-03-10 18:29:06 +0100 1 1 3 JogAmp Jogl core 1 pc_x86_64 linux RESOLVED INVALID --- major --- 0 elect86 sgothel sgothel --- --- oldest_to_newest 3840 0 elect86 2014-03-09 13:41:39 +0100 Here a minimal test case /* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package test; import com.jogamp.newt.awt.NewtCanvasAWT; import com.jogamp.newt.opengl.GLWindow; import com.jogamp.opengl.util.Animator; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.media.opengl.GLAutoDrawable; import javax.media.opengl.GLCapabilities; import javax.media.opengl.GLEventListener; import javax.media.opengl.GLProfile; import javax.swing.JFrame; /** * * @author elect */ public class Bug extends JFrame { /** * @param args the command line arguments */ public static void main(String[] args) { bug = new Bug(); } private static Bug bug; private GlViewer glViewer; public Bug() { glViewer = new GlViewer(); add(glViewer.newtCanvasAWT); final Animator animator = new Animator(glViewer.glWindow); addWindowListener(new WindowAdapter() { @Override public void windowClosing(WindowEvent windowEvent) { animator.stop(); System.exit(0); } }); setSize(1024, 768); setVisible(true); animator.start(); } private class GlViewer implements GLEventListener { public GLWindow glWindow; public NewtCanvasAWT newtCanvasAWT; public Animator animator; public GlViewer(){ GLProfile glProfile = GLProfile.getDefault(); GLCapabilities glCapabilities = new GLCapabilities(glProfile); glWindow = GLWindow.create(glCapabilities); glWindow.addGLEventListener(this); glWindow.setVisible(true); newtCanvasAWT = new NewtCanvasAWT(glWindow); } @Override public void init(GLAutoDrawable glad) { } @Override public void dispose(GLAutoDrawable glad) { } @Override public void display(GLAutoDrawable glad) { } @Override public void reshape(GLAutoDrawable glad, int i, int i1, int i2, int i3) { } } } This is the error X11Util.Display: Shutdown (JVM shutdown: true, open (no close attempt): 3/3, reusable (open, marked uncloseable): 0, pending (open in creation order): 3) X11Util: Open X11 Display Connections: 3 X11Util: Open[0]: NamedX11Display[:0, 0x7f81540a1980, refCount 1, unCloseable false] X11Util: Open[1]: NamedX11Display[:0, 0x7f81540dbe90, refCount 1, unCloseable false] X11Util: Open[2]: NamedX11Display[:0, 0x7f819c5f09a0, refCount 1, unCloseable false] 3846 1 sgothel 2014-03-10 18:21:36 +0100 This is not an error, but a notification that you have not closed the display / device properly. The display is kept open, since you don't close the window, here the GLWindow bound to the NewtCanvasAWT. 3847 2 elect86 2014-03-10 18:29:06 +0100 How do I close the windows? destroy() on the glWindow doesn't work either