Posted by Job Zwiers on May 21, 2011; 10:37pm
URL: https://forum.jogamp.org/OpenGL-4-status-tp2969055p2970328.html

Hi,

Yes, your pages are very useful. But I think that my simple test is much like your examples, except that I went for OGL4, rather than OGL3.  (And with GL3 instead of GL4 everything works fine)
The relevant code sections:

   private GLCanvas createGLCanvas() {
      GLProfile glp = GLProfile.get(GLProfile.GL4);
      GLCapabilities caps = new GLCapabilities(glp);
      GLCanvas canvas = new GLCanvas(caps);
      canvas.addGLEventListener(this);
....

  public void init(GLAutoDrawable drawable) {
      GL4 gl = drawable.getGL().getGL4(); // <=============== THIS LINE THROWS THE EXCEPTION
      String version = gl.glGetString(GL4.GL_VERSION);
      String shaderversion = gl.glGetString(GL4.GL_SHADING_LANGUAGE_VERSION);
      System.out.println("GLVERSION: " + version + " shading language: " + shaderversion );
      .....

The result:
java] Exception in thread "AWT-EventQueue-0" javax.media.opengl.GLException: Not a GL4 implementation
     [java] at jogamp.opengl.gl4.GL4bcImpl.getGL4(GL4bcImpl.java:32456)
     [java] at firstopengl.OGL4Test.init(OGL4Test.java:173)
     [java] at jogamp.opengl.GLDrawableHelper.init(GLDrawableHelper.java:132)
     [java] at jogamp.opengl.GLDrawableHelper.init(GLDrawableHelper.java:151)
     [java] at javax.media.opengl.awt.GLCanvas$InitAction.run(GLCanvas.java:872)
     [java] at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:328)
     [java] at javax.media.opengl.awt.GLCanvas.maybeDoSingleThreadedWorkaround(GLCanvas.java:785)
     [java] at javax.media.opengl.awt.GLCanvas.display(GLCanvas.java:389)
     [java] at javax.media.opengl.awt.GLCanvas.paint(GLCanvas.java:488)
     [java] at sun.awt.RepaintArea.paintComponent(RepaintArea.java:248)

Best regards,

Job