Bug 816: Fix JAWTWindow's getLocationOnScreenNonBlocking(); Derive CALayer position from AWT component's location on screen. Track fixedFrame size of root CALayer; Add Split layout to unit test, add [manual] Applet tests.

- Fix JAWTWindow's getLocationOnScreenNonBlocking()
  Skip JRootPane while traversing up to root Container.
  JRootPane would duplicate the top-level container's offset (Window insets).

- Derive CALayer position from AWT component's location on screen. Add Split layout to unit test, add [manual] Applet tests.
  AWT >= 7u40:
  - AWT position is top-left w/ insets, where CALayer position is bottom/left from root CALayer w/o insets.
  - Use getLocationOnScreenNonBlocking() to get location-on-screen w/o insets.
  - Native code: flip origin

  AWT < 7u40 still uses fixed position 0/0 for root and sub layer.

- Track fixedFrame size of root CALayer - MyCALayer:
  - Override layoutSublayers to validate root and sub-layer pos/size
  - Override setFrame to use fixedFrame, if set (similar to MyNSOpenGLLayer)

- Add Split layout to unit test, add [manual] Applet tests.
  - Thx to 'jimthev' and 'Manu' for providing Applet unit tests

8 files changed, 534 insertions, 139 deletions

diff --git a/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java b/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
index a71356b1c..576fcf4ed 100644
--- a/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
+++ b/src/nativewindow/classes/com/jogamp/nativewindow/awt/JAWTWindow.java
@@ -46,6 +46,7 @@ import java.awt.Container;
 import java.awt.event.ComponentEvent;
 import java.awt.event.ComponentListener;
 import java.applet.Applet;
+
 import javax.media.nativewindow.AbstractGraphicsConfiguration;
 import javax.media.nativewindow.AbstractGraphicsDevice;
 import javax.media.nativewindow.CapabilitiesImmutable;
@@ -60,6 +61,7 @@ import javax.media.nativewindow.util.InsetsImmutable;
 import javax.media.nativewindow.util.Point;
 import javax.media.nativewindow.util.Rectangle;
 import javax.media.nativewindow.util.RectangleImmutable;
+import javax.swing.JRootPane;
 
 import jogamp.nativewindow.SurfaceUpdatedHelper;
 import jogamp.nativewindow.jawt.JAWT;
@@ -227,9 +229,6 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
       if( !isOffscreenLayerSurfaceEnabled() ) {
           throw new NativeWindowException("Not an offscreen layer surface");
       }
-      if(DEBUG) {
-        System.err.println("JAWTWindow.attachSurfaceHandle: "+toHexString(layerHandle) + ", bounds "+bounds);
-      }
       attachSurfaceLayerImpl(layerHandle);
       offscreenSurfaceLayer = layerHandle;
       component.repaint();
@@ -248,14 +247,14 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
    * Call this method if any parent or ancestor's layout has been changed,
    * which could affects the layout of this surface.
    * </p>
-   * @see #isOffscreenLayerSurfaceEnabled()
+ * @see #isOffscreenLayerSurfaceEnabled()
    * @throws NativeWindowException if {@link #isOffscreenLayerSurfaceEnabled()} == false
    */
-  protected void layoutSurfaceLayerImpl(long layerHandle, int width, int height) {}
+  protected void layoutSurfaceLayerImpl(long layerHandle) {}
   
   private final void layoutSurfaceLayerIfEnabled() throws NativeWindowException {
       if( isOffscreenLayerSurfaceEnabled() && 0 != offscreenSurfaceLayer ) {
-          layoutSurfaceLayerImpl(offscreenSurfaceLayer, getWidth(), getHeight());
+          layoutSurfaceLayerImpl(offscreenSurfaceLayer);
       }
   }
   
@@ -533,7 +532,11 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
                   System.err.println("Warning: JAWT Lock hold, but not the AWT tree lock: "+this);
                   Thread.dumpStack();
               }
-              return getLocationOnScreenNonBlocking(storage, component);
+              if( null == storage ) {
+                  storage = new Point();
+              }
+              getLocationOnScreenNonBlocking(storage, component);
+              return storage;
           }
           java.awt.Point awtLOS = component.getLocationOnScreen();
           if(null!=storage) {
@@ -569,21 +572,28 @@ public abstract class JAWTWindow implements NativeWindow, OffscreenLayerSurface,
   }
   protected abstract Point getLocationOnScreenNativeImpl(int x, int y);
 
-  protected static Point getLocationOnScreenNonBlocking(Point storage, Component comp) {
-      int x = 0;
-      int y = 0;
+  protected static Component getLocationOnScreenNonBlocking(Point storage, Component comp) {
+      Component last = null;
       while(null != comp) {
-          x += comp.getX();
-          y += comp.getY();
+          final int dx = comp.getX(); 
+          final int dy = comp.getY();
+          if( ! ( comp instanceof JRootPane ) ) {
+              if( DEBUG ) {
+                  System.err.print("LOS: "+storage+" + "+comp.getClass().getSimpleName()+"["+dx+"/"+dy+"] -> ");
+              }
+              storage.translate(dx, dy);
+              if( DEBUG ) {
+                  System.err.println(storage);
+              }
+              last = comp;
+          } else if( DEBUG ) {
+              System.err.println("LOS: ignore "+comp.getClass().getSimpleName()+"["+dx+"/"+dy+"]");
+          }
           comp = comp.getParent();
       }
-      if(null!=storage) {
-          storage.translate(x, y);
-          return storage;
-      }
-      return new Point(x, y);
+      return last;
   }
-
+  
   @Override
   public boolean hasFocus() {
       return component.hasFocus();
diff --git a/src/nativewindow/classes/jogamp/nativewindow/awt/AWTMisc.java b/src/nativewindow/classes/jogamp/nativewindow/awt/AWTMisc.java
index f38e7ea2b..e326b65bd 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/awt/AWTMisc.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/awt/AWTMisc.java
@@ -28,13 +28,16 @@
 package jogamp.nativewindow.awt;
 
 import java.awt.FocusTraversalPolicy;
+import java.awt.Insets;
 import java.awt.Window;
 import java.awt.Component;
 import java.awt.Container;
 import java.awt.Frame;
+
+import javax.swing.JComponent;
 import javax.swing.JFrame;
+import javax.swing.JRootPane;
 import javax.swing.WindowConstants;
-
 import javax.media.nativewindow.NativeWindowException;
 import javax.media.nativewindow.WindowClosingProtocol;
 import javax.swing.MenuSelectionManager;
@@ -68,6 +71,16 @@ public class AWTMisc {
         }
         return (Container) c;
     }
+    
+    public static Insets getInsets(Component c) {
+        if( c instanceof Window ) {
+            return ((Window)c).getInsets();
+        }
+        if( c instanceof JComponent ) {
+            return ((JComponent)c).getInsets();
+        }
+        return null;
+    }
 
     public static interface ComponentAction {
         /**
diff --git a/src/nativewindow/classes/jogamp/nativewindow/jawt/macosx/MacOSXJAWTWindow.java b/src/nativewindow/classes/jogamp/nativewindow/jawt/macosx/MacOSXJAWTWindow.java
index 666f895f4..6d08078b6 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/jawt/macosx/MacOSXJAWTWindow.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/jawt/macosx/MacOSXJAWTWindow.java
@@ -40,6 +40,7 @@
 
 package jogamp.nativewindow.jawt.macosx;
 
+import java.awt.Component;
 import java.nio.Buffer;
 import java.security.AccessController;
 import java.security.PrivilegedAction;
@@ -49,11 +50,11 @@ import javax.media.nativewindow.Capabilities;
 import javax.media.nativewindow.NativeWindow;
 import javax.media.nativewindow.NativeWindowException;
 import javax.media.nativewindow.MutableSurface;
-import javax.media.nativewindow.NativeWindowFactory;
 import javax.media.nativewindow.util.Point;
 
 import com.jogamp.nativewindow.awt.JAWTWindow;
 
+import jogamp.nativewindow.awt.AWTMisc;
 import jogamp.nativewindow.jawt.JAWT;
 import jogamp.nativewindow.jawt.JAWTFactory;
 import jogamp.nativewindow.jawt.JAWTUtil;
@@ -105,19 +106,42 @@ public class MacOSXJAWTWindow extends JAWTWindow implements MutableSurface {
   @Override
   protected void attachSurfaceLayerImpl(final long layerHandle) {
       OSXUtil.RunOnMainThread(false, new Runnable() {
-          public void run() {      
-              OSXUtil.AddCASublayer(rootSurfaceLayer, layerHandle, getWidth(), getHeight(), JAWTUtil.getOSXCALayerQuirks());
+          public void run() {
+              // AWT position is top-left w/ insets, where CALayer position is bottom/left from root CALayer w/o insets.
+              // Determine p0: components location on screen w/o insets.
+              // CALayer position will be determined in native code.
+              final Point p0 = new Point();
+              final Component outterComp = getLocationOnScreenNonBlocking(p0, component);
+              final java.awt.Insets ins = AWTMisc.getInsets(outterComp);
+              if(null != ins) {
+                  p0.translate(-ins.left, -ins.top);
+              }
+              if( DEBUG ) {
+                  final java.awt.Point wP0 = outterComp.getLocationOnScreen();
+                  System.err.println("JAWTWindow.attachSurfaceHandleImpl: "+toHexString(layerHandle) + ", wP0 "+wP0+"[ins "+ins+"], p0 "+p0+", bounds "+bounds);
+              }
+              OSXUtil.AddCASublayer(rootSurfaceLayer, layerHandle, p0.getX(), p0.getY(), getWidth(), getHeight(), JAWTUtil.getOSXCALayerQuirks());
           } } );
   }
   
   @Override
-  protected void layoutSurfaceLayerImpl(long layerHandle, int width, int height) {
+  protected void layoutSurfaceLayerImpl(long layerHandle) {
       final int caLayerQuirks = JAWTUtil.getOSXCALayerQuirks();
       if( 0 != caLayerQuirks ) {
-          if(DEBUG) {
-            System.err.println("JAWTWindow.layoutSurfaceLayerImpl: "+toHexString(layerHandle) + ", "+width+"x"+height+", caLayerQuirks "+caLayerQuirks+"; "+this);
+          // AWT position is top-left w/ insets, where CALayer position is bottom/left from root CALayer w/o insets.
+          // Determine p0: components location on screen w/o insets.
+          // CALayer position will be determined in native code.
+          final Point p0 = new Point();
+          final Component outterComp = getLocationOnScreenNonBlocking(p0, component);
+          final java.awt.Insets ins = AWTMisc.getInsets(outterComp);
+          if( null != ins ) {
+              p0.translate(-ins.left, -ins.top);
           }
-          OSXUtil.FixCALayerLayout(rootSurfaceLayer, layerHandle, width, height, caLayerQuirks);
+          if( DEBUG ) {
+              final java.awt.Point wP0 = outterComp.getLocationOnScreen();
+              System.err.println("JAWTWindow.layoutSurfaceLayerImpl: "+toHexString(layerHandle) + ", wP0 "+wP0+"[ins "+ins+"], p0 "+p0+", bounds "+bounds);
+          }
+          OSXUtil.FixCALayerLayout(rootSurfaceLayer, layerHandle, p0.getX(), p0.getY(), getWidth(), getHeight(), caLayerQuirks);
       }
   }
   
@@ -312,8 +336,12 @@ public class MacOSXJAWTWindow extends JAWTWindow implements MutableSurface {
    * </p>      
    */
   @Override
-  public Point getLocationOnScreen(Point storage) {     
-      return getLocationOnScreenNonBlocking(storage, component);     
+  public Point getLocationOnScreen(Point storage) {
+      if( null == storage ) {
+          storage = new Point();
+      }
+      getLocationOnScreenNonBlocking(storage, component);
+      return storage;
   }  
   protected Point getLocationOnScreenNativeImpl(final int x0, final int y0) { return null; }
   
diff --git a/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java b/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java
index de24a76db..2112131ed 100644
--- a/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java
+++ b/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java
@@ -163,14 +163,14 @@ public class OSXUtil implements ToolkitProperties {
      * @see #CreateCALayer(int, int)
      * @see #RemoveCASublayer(long, long, boolean)
      */
-    public static void AddCASublayer(final long rootCALayer, final long subCALayer, final int width, final int height, final int caLayerQuirks) {
+    public static void AddCASublayer(final long rootCALayer, final long subCALayer, final int x, final int y, final int width, final int height, final int caLayerQuirks) {
         if(0==rootCALayer || 0==subCALayer) {
             throw new IllegalArgumentException("rootCALayer 0x"+Long.toHexString(rootCALayer)+", subCALayer 0x"+Long.toHexString(subCALayer));
         }
         if(DEBUG) {
             System.err.println("OSXUtil.AttachCALayer: caLayerQuirks "+caLayerQuirks+", 0x"+Long.toHexString(subCALayer)+" - "+Thread.currentThread().getName());
         }
-        AddCASublayer0(rootCALayer, subCALayer, width, height, caLayerQuirks);
+        AddCASublayer0(rootCALayer, subCALayer, x, y, width, height, caLayerQuirks);
     }
     
     /** 
@@ -190,11 +190,11 @@ public class OSXUtil implements ToolkitProperties {
      * @param height the expected height
      * @param caLayerQuirks TODO
      */
-    public static void FixCALayerLayout(final long rootCALayer, final long subCALayer, final int width, final int height, final int caLayerQuirks) {
+    public static void FixCALayerLayout(final long rootCALayer, final long subCALayer, final int x, final int y, final int width, final int height, final int caLayerQuirks) {
         if( 0==rootCALayer && 0==subCALayer ) {
             return;
         }
-        FixCALayerLayout0(rootCALayer, subCALayer, width, height, caLayerQuirks);
+        FixCALayerLayout0(rootCALayer, subCALayer, x, y, width, height, caLayerQuirks);
     }
     
     /** 
@@ -357,8 +357,8 @@ public class OSXUtil implements ToolkitProperties {
     private static native long GetNSView0(long nsWindow);
     private static native long GetNSWindow0(long nsView);
     private static native long CreateCALayer0(int width, int height);
-    private static native void AddCASublayer0(long rootCALayer, long subCALayer, int width, int height, int caLayerQuirks);
-    private static native void FixCALayerLayout0(long rootCALayer, long subCALayer, int width, int height, int caLayerQuirks);
+    private static native void AddCASublayer0(long rootCALayer, long subCALayer, int x, int y, int width, int height, int caLayerQuirks);
+    private static native void FixCALayerLayout0(long rootCALayer, long subCALayer, int x, int y, int width, int height, int caLayerQuirks);
     private static native void RemoveCASublayer0(long rootCALayer, long subCALayer);
     private static native void DestroyCALayer0(long caLayer);
     private static native void RunOnMainThread0(Runnable runnable);
diff --git a/src/nativewindow/native/macosx/OSXmisc.m b/src/nativewindow/native/macosx/OSXmisc.m
index fbe37be7d..fa40c871f 100644
--- a/src/nativewindow/native/macosx/OSXmisc.m
+++ b/src/nativewindow/native/macosx/OSXmisc.m
@@ -333,6 +333,9 @@ JNIEXPORT jlong JNICALL Java_jogamp_nativewindow_macosx_OSXUtil_GetNSWindow0
  */
 @interface MyCALayer: CALayer
 {
+@private
+  BOOL fixedFrameSet;
+  CGRect fixedFrame;
 }
 - (id)init;
 #ifdef DBG_LIFECYCLE
@@ -341,6 +344,9 @@ JNIEXPORT jlong JNICALL Java_jogamp_nativewindow_macosx_OSXUtil_GetNSWindow0
 - (void)dealloc;
 #endif
 - (id<CAAction>)actionForKey:(NSString *)key ;
+- (void)layoutSublayers;
+- (void)setFrame:(CGRect) frame;
+- (void)fixCALayerLayout: (CALayer*) subLayer  x:(jint)x y:(jint)y width:(jint)width height:(jint)height caLayerQuirks:(jint)caLayerQuirks force:(jboolean) force;
 
 @end
 
@@ -350,6 +356,8 @@ JNIEXPORT jlong JNICALL Java_jogamp_nativewindow_macosx_OSXUtil_GetNSWindow0
 {
     DBG_PRINT("MyCALayer::init.0\n");
     MyCALayer * o = [super init];
+    o->fixedFrameSet = 0;
+    o->fixedFrame = CGRectMake(0, 0, 0, 0);
     DBG_PRINT("MyCALayer::init.X: new %p\n", o);
     return o;
 }
@@ -390,6 +398,127 @@ JNIEXPORT jlong JNICALL Java_jogamp_nativewindow_macosx_OSXUtil_GetNSWindow0
     // return [super actionForKey: key];
 }
 
+- (void)layoutSublayers
+{
+    if( fixedFrameSet ) {
+        NSArray* subs = [self sublayers];
+        if( NULL != subs ) {
+            CGRect rFrame = [self frame];
+            if( !CGRectEqualToRect(fixedFrame, rFrame) ) {
+                #ifdef VERBOSE
+                DBG_PRINT("CALayer::layoutSublayers.0: Root %p frame %lf/%lf %lfx%lf -> %lf/%lf %lfx%lf\n",
+                    self,
+                    rFrame.origin.x, rFrame.origin.y, rFrame.size.width, rFrame.size.height,
+                    fixedFrame.origin.x, fixedFrame.origin.y, fixedFrame.size.width, fixedFrame.size.height);
+                #endif
+                [super setFrame: fixedFrame];
+            }
+            NSUInteger i = 0;
+            for(i=0; i<[subs count]; i++) {
+                CALayer* sub = [subs objectAtIndex: i];
+                CGRect sFrame = [sub frame];
+                CGRect sFrame2 = CGRectMake(0, 0, fixedFrame.size.width, fixedFrame.size.height);
+                if( !CGRectEqualToRect(sFrame2, sFrame) ) {
+                    #ifdef VERBOSE
+                    DBG_PRINT("CALayer::layoutSublayers.1: Sub[%d] %p frame %lf/%lf %lfx%lf -> %lf/%lf %lfx%lf\n",
+                        (int)i, sub,
+                        sFrame.origin.x, sFrame.origin.y, sFrame.size.width, sFrame.size.height,
+                        sFrame2.origin.x, sFrame2.origin.y, sFrame2.size.width, sFrame2.size.height);
+                    #endif
+                    [sub setFrame: sFrame2];
+                }
+                #ifdef VERBOSE
+                DBG_PRINT("CALayer::layoutSublayers.X: Root %p . Sub[%d] %p : frame r: %lf/%lf %lfx%lf . s: %lf/%lf %lfx%lf\n",
+                    self, (int)i, sub,
+                    rFrame.origin.x, rFrame.origin.y, rFrame.size.width, rFrame.size.height,
+                    sFrame.origin.x, sFrame.origin.y, sFrame.size.width, sFrame.size.height);
+                #endif
+            }
+        }
+    } else {
+        [super layoutSublayers];
+    }
+}
+
+- (void) setFrame:(CGRect) frame
+{
+    if( fixedFrameSet ) {
+        [super setFrame: fixedFrame];
+    } else {
+        [super setFrame: frame];
+    }
+}
+
+- (void)fixCALayerLayout: (CALayer*) subLayer  x:(jint)x y:(jint)y width:(jint)width height:(jint)height caLayerQuirks:(jint)caLayerQuirks force:(jboolean) force
+{
+    {
+        CALayer* superLayer = [self superlayer];
+        CGRect superFrame = [superLayer frame];
+        CGRect lFrame = [self frame];
+        int posQuirk  = 0 != ( NW_DEDICATEDFRAME_QUIRK_POSITION & caLayerQuirks ) && ( lFrame.origin.x!=0 || lFrame.origin.y!=0 );
+        int sizeQuirk = 0 != ( NW_DEDICATEDFRAME_QUIRK_SIZE & caLayerQuirks ) && ( lFrame.size.width!=width || lFrame.size.height!=height );
+        if( !posQuirk ) {
+            // Use root layer position, sub-layer will be on 0/0,
+            // Given AWT position is location on screen w/o insets and top/left origin!
+            fixedFrame.origin.x = x;
+            fixedFrame.origin.y = superFrame.size.height - height - y; // AWT's position top/left -> bottom/left
+            posQuirk |= 8;
+        } else {
+            // Buggy super layer position, always use 0/0
+            fixedFrame.origin.x = 0;
+            fixedFrame.origin.y = 0;
+        }
+        if( !sizeQuirk ) {
+            fixedFrame.size.width = lFrame.size.width;
+            fixedFrame.size.height = lFrame.size.height;
+        } else {
+            fixedFrame.size.width = width;
+            fixedFrame.size.height = height;
+        }
+        DBG_PRINT("CALayer::FixCALayerLayout0.0: Quirks [%d, pos %d, size %d], Super %p frame %lf/%lf %lfx%lf, Root %p frame %lf/%lf %lfx%lf, usr %d/%d %dx%d -> %lf/%lf %lfx%lf\n",
+            caLayerQuirks, posQuirk, sizeQuirk, 
+            superLayer, superFrame.origin.x, superFrame.origin.y, superFrame.size.width, superFrame.size.height, 
+            self, lFrame.origin.x, lFrame.origin.y, lFrame.size.width, lFrame.size.height, 
+            x, y, width, height, fixedFrame.origin.x, fixedFrame.origin.y, fixedFrame.size.width, fixedFrame.size.height);
+        if( posQuirk || sizeQuirk ) {
+            fixedFrameSet = 1;
+            [super setFrame: fixedFrame];
+        }
+    }
+    if( NULL != subLayer ) {
+        CGRect lFrame = [subLayer frame];
+        int sizeQuirk = 0 != ( NW_DEDICATEDFRAME_QUIRK_SIZE & caLayerQuirks ) && ( lFrame.size.width!=width || lFrame.size.height!=height );
+        CGFloat _x, _y, _w, _h;
+        int posQuirk  = 0 != ( NW_DEDICATEDFRAME_QUIRK_POSITION & caLayerQuirks ) && ( lFrame.origin.x!=0 || lFrame.origin.y!=0 );
+        // Sub rel. to used root layer
+        _x = 0;
+        _y = 0;
+        posQuirk |= 8;
+        if( !sizeQuirk ) {
+            _w = lFrame.size.width;
+            _h = lFrame.size.height;
+        } else {
+            _w = width;
+            _h = height;
+        }
+        DBG_PRINT("CALayer::FixCALayerLayout1.0: Quirks [%d, pos %d, size %d], SubL %p frame %lf/%lf %lfx%lf, usr %dx%d -> %lf/%lf %lfx%lf\n",
+            caLayerQuirks, posQuirk, sizeQuirk, subLayer, lFrame.origin.x, lFrame.origin.y, lFrame.size.width, lFrame.size.height,
+            width, height, _x, _y, _w, _h);
+        if( force || posQuirk || sizeQuirk ) {
+            lFrame.origin.x = _x;
+            lFrame.origin.y = _y;
+            lFrame.size.width = _w;
+            lFrame.size.height = _h;
+            if( [subLayer conformsToProtocol:@protocol(NWDedicatedFrame)] ) {
+                CALayer <NWDedicatedFrame> * subLayerDS = (CALayer <NWDedicatedFrame> *) subLayer;
+                [subLayerDS setDedicatedFrame: lFrame quirks: caLayerQuirks];
+            } else {
+                [subLayer setFrame: lFrame];
+            }
+        }
+    }
+}
+
 @end
 
 /*
@@ -409,98 +538,32 @@ JNIEXPORT jlong JNICALL Java_jogamp_nativewindow_macosx_OSXUtil_CreateCALayer0
     if(0 == height) { height = 32; }
 
     // initial dummy size !
-    CGRect lRect = [layer frame];
-    lRect.origin.x = 0;
-    lRect.origin.y = 0;
-    lRect.size.width = width;
-    lRect.size.height = height;
-    [layer setFrame: lRect];
+    CGRect lFrame = [layer frame];
+    lFrame.origin.x = 0;
+    lFrame.origin.y = 0;
+    lFrame.size.width = width;
+    lFrame.size.height = height;
+    [layer setFrame: lFrame];
     // no animations for add/remove/swap sublayers etc 
     // doesn't work: [layer removeAnimationForKey: kCAOnOrderIn, kCAOnOrderOut, kCATransition]
     [layer removeAllAnimations];
     // [layer addAnimation:nil forKey:kCATransition];
     [layer setAutoresizingMask: (kCALayerWidthSizable|kCALayerHeightSizable)];
     [layer setNeedsDisplayOnBoundsChange: YES];
-    DBG_PRINT("CALayer::CreateCALayer.1: root %p %lf/%lf %lfx%lf\n", layer, lRect.origin.x, lRect.origin.y, lRect.size.width, lRect.size.height);
+    DBG_PRINT("CALayer::CreateCALayer.1: root %p %lf/%lf %lfx%lf\n", layer, lFrame.origin.x, lFrame.origin.y, lFrame.size.width, lFrame.size.height);
     [pool release];
     DBG_PRINT("CALayer::CreateCALayer.X: root %p (refcnt %d)\n", layer, (int)[layer retainCount]);
 
     return (jlong) ((intptr_t) layer);
 }
 
-static void FixCALayerLayout0(MyCALayer* rootLayer, CALayer* subLayer, jint width, jint height, jint caLayerQuirks, jboolean force) {
-    if( NULL != rootLayer ) {
-        CGRect lRect = [rootLayer frame];
-        int posQuirk  = 0 != ( NW_DEDICATEDFRAME_QUIRK_POSITION & caLayerQuirks ) && ( lRect.origin.x!=0 || lRect.origin.y!=0 );
-        int sizeQuirk = 0 != ( NW_DEDICATEDFRAME_QUIRK_SIZE & caLayerQuirks ) && ( lRect.size.width!=width || lRect.size.height!=height );
-        CGFloat _x, _y, _w, _h;
-        // force root -> 0/0
-        _x = 0;
-        _y = 0;
-        posQuirk |= 8;
-        if( sizeQuirk ) {
-            _w = width;
-            _h = height;
-        } else {
-            _w = lRect.size.width;
-            _h = lRect.size.height;
-        }
-        DBG_PRINT("CALayer::FixCALayerLayout0.0: Quirks [%d, pos %d, size %d], Root %p frame %lf/%lf %lfx%lf, usr %dx%d -> %lf/%lf %lfx%lf\n",
-            caLayerQuirks, posQuirk, sizeQuirk, rootLayer, lRect.origin.x, lRect.origin.y, lRect.size.width, lRect.size.height, 
-            width, height, _x, _y, _w, _h);
-        if( posQuirk || sizeQuirk ) {
-            lRect.origin.x = _x;
-            lRect.origin.y = _y;
-            lRect.size.width = _w;
-            lRect.size.height = _h;
-            [rootLayer setFrame: lRect];
-        }
-    }
-    if( NULL != subLayer ) {
-        CGRect lRect = [subLayer frame];
-        int sizeQuirk = 0 != ( NW_DEDICATEDFRAME_QUIRK_SIZE & caLayerQuirks ) && ( lRect.size.width!=width || lRect.size.height!=height );
-        CGFloat _x, _y, _w, _h;
-        int posQuirk  = 0 != ( NW_DEDICATEDFRAME_QUIRK_POSITION & caLayerQuirks ) && ( lRect.origin.x!=0 || lRect.origin.y!=0 );
-        if( posQuirk ) {
-            _x = 0;
-            _y = 0;
-        } else {
-            // sub always rel to root
-            _x = lRect.origin.x;
-            _y = lRect.origin.y;
-        }
-        if( sizeQuirk ) {
-            _w = width;
-            _h = height;
-        } else {
-            _w = lRect.size.width;
-            _h = lRect.size.height;
-        }
-        DBG_PRINT("CALayer::FixCALayerLayout1.0: Quirks [%d, pos %d, size %d], SubL %p frame %lf/%lf %lfx%lf, usr %dx%d -> %lf/%lf %lfx%lf\n",
-            caLayerQuirks, posQuirk, sizeQuirk, subLayer, lRect.origin.x, lRect.origin.y, lRect.size.width, lRect.size.height,
-            width, height, _x, _y, _w, _h);
-        if( force || posQuirk || sizeQuirk ) {
-            lRect.origin.x = _x;
-            lRect.origin.y = _y;
-            lRect.size.width = _w;
-            lRect.size.height = _h;
-            if( [subLayer conformsToProtocol:@protocol(NWDedicatedFrame)] ) {
-                CALayer <NWDedicatedFrame> * subLayerDS = (CALayer <NWDedicatedFrame> *) subLayer;
-                [subLayerDS setDedicatedFrame: lRect quirks: caLayerQuirks];
-            } else {
-                [subLayer setFrame: lRect];
-            }
-        }
-    }
-}
-
 /*
  * Class:     Java_jogamp_nativewindow_macosx_OSXUtil
  * Method:    AddCASublayer0
  * Signature: (JJIIIII)V
  */
 JNIEXPORT void JNICALL Java_jogamp_nativewindow_macosx_OSXUtil_AddCASublayer0
-  (JNIEnv *env, jclass unused, jlong rootCALayer, jlong subCALayer, jint width, jint height, jint caLayerQuirks)
+  (JNIEnv *env, jclass unused, jlong rootCALayer, jlong subCALayer, jint x, jint y, jint width, jint height, jint caLayerQuirks)
 {
     NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
     MyCALayer* rootLayer = (MyCALayer*) ((intptr_t) rootCALayer);
@@ -513,23 +576,10 @@ JNIEXPORT void JNICALL Java_jogamp_nativewindow_macosx_OSXUtil_AddCASublayer0
     [subLayer retain]; // Pairs w/ RemoveCASublayer
 
     CGRect lRectRoot = [rootLayer frame];
-    int posQuirk  = 0 != ( NW_DEDICATEDFRAME_QUIRK_POSITION & caLayerQuirks );
-    int sizeQuirk = 0 != ( NW_DEDICATEDFRAME_QUIRK_SIZE & caLayerQuirks );
-
-    DBG_PRINT("CALayer::AddCASublayer0.0: Quirks [%d, pos %d, size %d], Root %p (refcnt %d), Sub %p (refcnt %d), frame0: %lf/%lf %lfx%lf\n",
-        caLayerQuirks, posQuirk, sizeQuirk, rootLayer, (int)[rootLayer retainCount], subLayer, (int)[subLayer retainCount],
+    DBG_PRINT("CALayer::AddCASublayer0.0: Quirks %d, Root %p (refcnt %d), Sub %p (refcnt %d), frame0: %lf/%lf %lfx%lf\n",
+        caLayerQuirks, rootLayer, (int)[rootLayer retainCount], subLayer, (int)[subLayer retainCount],
         lRectRoot.origin.x, lRectRoot.origin.y, lRectRoot.size.width, lRectRoot.size.height);
 
-    CGPoint origin = lRectRoot.origin; // save
-    // force root to 0/0
-    lRectRoot.origin.x = 0;
-    lRectRoot.origin.y = 0;
-    [rootLayer setFrame: lRectRoot];
-
-    // simple 1:1 layout rel. to root-layer !
-    if( !posQuirk ) {
-        lRectRoot.origin = origin;
-    }
     [subLayer setFrame:lRectRoot];
     [rootLayer addSublayer:subLayer];
 
@@ -545,7 +595,7 @@ JNIEXPORT void JNICALL Java_jogamp_nativewindow_macosx_OSXUtil_AddCASublayer0
     [subLayer setNeedsDisplayOnBoundsChange: YES];
 
     if( 0 != caLayerQuirks ) {
-        FixCALayerLayout0(rootLayer, subLayer, width, height, caLayerQuirks, JNI_TRUE);
+        [rootLayer fixCALayerLayout: subLayer x:x y:y width:width height:height caLayerQuirks:caLayerQuirks force:JNI_TRUE];
     }
 
     [CATransaction commit];
@@ -561,17 +611,20 @@ JNIEXPORT void JNICALL Java_jogamp_nativewindow_macosx_OSXUtil_AddCASublayer0
  * Signature: (JJIII)V
  */
 JNIEXPORT void JNICALL Java_jogamp_nativewindow_macosx_OSXUtil_FixCALayerLayout0
-  (JNIEnv *env, jclass unused, jlong rootCALayer, jlong subCALayer, jint width, jint height, jint caLayerQuirks)
+  (JNIEnv *env, jclass unused, jlong rootCALayer, jlong subCALayer, jint x, jint y, jint width, jint height, jint caLayerQuirks)
 {
     if( 0 != caLayerQuirks ) {
         NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
         MyCALayer* rootLayer = (MyCALayer*) ((intptr_t) rootCALayer);
+        if( NULL == rootLayer ) {
+            NativewindowCommon_throwNewRuntimeException(env, "Argument \"rootLayer\" is null");
+        }
         CALayer* subLayer = (CALayer*) ((intptr_t) subCALayer);
 
         [CATransaction begin];
         [CATransaction setValue:(id)kCFBooleanTrue forKey:kCATransactionDisableActions];
 
-        FixCALayerLayout0(rootLayer, subLayer, width, height, caLayerQuirks, JNI_FALSE);
+        [rootLayer fixCALayerLayout: subLayer x:x y:y width:width height:height caLayerQuirks:caLayerQuirks force:JNI_FALSE];
 
         [CATransaction commit];
 
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/awt/TestBug816OSXCALayerPosAWT.java b/src/test/com/jogamp/opengl/test/junit/jogl/awt/TestBug816OSXCALayerPosAWT.java
index 48340aa75..358e97622 100644
--- a/src/test/com/jogamp/opengl/test/junit/jogl/awt/TestBug816OSXCALayerPosAWT.java
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/awt/TestBug816OSXCALayerPosAWT.java
@@ -33,8 +33,13 @@ import javax.media.opengl.*;
 import com.jogamp.opengl.util.Animator;
 
 import javax.media.opengl.awt.GLCanvas;
+import javax.swing.BoundedRangeModel;
 import javax.swing.BoxLayout;
 import javax.swing.JFrame;
+import javax.swing.JScrollBar;
+import javax.swing.JScrollPane;
+import javax.swing.JSplitPane;
+import javax.swing.ScrollPaneConstants;
 
 import com.jogamp.common.util.awt.AWTEDTExecutor;
 import com.jogamp.newt.event.awt.AWTWindowAdapter;
@@ -68,9 +73,15 @@ import org.junit.Test;
 import org.junit.FixMethodOrder;
 import org.junit.runners.MethodSorters;
 
+/**
+ * Bug 816: OSX CALayer Positioning Bug.
+ * <p>
+ * Diff. OSX CALayer positioning w/ java6, [7uxx..7u40[, and >= 7u40
+ * </p>
+ */
 @FixMethodOrder(MethodSorters.NAME_ASCENDING)
 public class TestBug816OSXCALayerPosAWT extends UITestCase {
-    public enum FrameLayout { None, Flow, DoubleBorderCenterSurrounded, Box };
+    public enum FrameLayout { None, Flow, DoubleBorderCenterSurrounded, Box, Split };
     
     static long duration = 1600; // ms    
     static int width, height;
@@ -113,7 +124,7 @@ public class TestBug816OSXCALayerPosAWT extends UITestCase {
                         comp2.setPreferredSize(new_sz2);
                         comp2.setSize(new_sz2);
                     }
-                    if( null != frame ) {
+                    if( null != frame ) {                        
                         frame.pack();
                     }
                 } } );
@@ -206,6 +217,39 @@ public class TestBug816OSXCALayerPosAWT extends UITestCase {
                     framePane.add(c);
                 }
                 break;
+            case Split: {
+                    Dimension sbDim = new Dimension(16, 16);
+                    JScrollPane vsp = new JScrollPane(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
+                    {
+                        JScrollBar vsb = vsp.getVerticalScrollBar();
+                        vsb.setPreferredSize(sbDim);
+                        BoundedRangeModel model = vsb.getModel();
+                        model.setMinimum(0);
+                        model.setMaximum(100);
+                        model.setValue(50);
+                        model.setExtent(1);
+                        vsb.setEnabled(true);
+                    }
+                    JScrollPane hsp = new JScrollPane(ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
+                    {
+                        JScrollBar hsb = hsp.getHorizontalScrollBar();
+                        hsb.setPreferredSize(sbDim);
+                        BoundedRangeModel model = hsb.getModel();
+                        model.setMinimum(0);
+                        model.setMaximum(100);
+                        model.setValue(50);
+                        model.setExtent(1);
+                        hsb.setEnabled(true);
+                    }
+                    JSplitPane horizontalSplitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, true, 
+                            twoCanvas ? glCanvas2 : vsp, glCanvas1 );
+                    horizontalSplitPane.setResizeWeight(0.5);
+                    JSplitPane verticalSplitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT, 
+                        true, horizontalSplitPane, hsp);    
+                    verticalSplitPane.setResizeWeight(0.5);
+                    framePane.add(verticalSplitPane);
+                }
+                break;
         }
         final GearsES2 demo1 = new GearsES2(swapInterval);
         glCanvas1.addGLEventListener(demo1);
@@ -329,27 +373,41 @@ public class TestBug816OSXCALayerPosAWT extends UITestCase {
     }
     
     @Test
-    public void test04_Compo_Flow_Two() throws InterruptedException, InvocationTargetException {
+    public void test04_Compo_Split_One() throws InterruptedException, InvocationTargetException {
         if( testNum != -1 && testNum != 4 ) { return ; }
         final GLCapabilities caps = new GLCapabilities(getGLP());
+        runTestGL(caps, FrameLayout.Split, false /* twoCanvas */, true /* resizeByComp */);
+    }
+    
+    @Test
+    public void test05_Compo_Flow_Two() throws InterruptedException, InvocationTargetException {
+        if( testNum != -1 && testNum != 5 ) { return ; }
+        final GLCapabilities caps = new GLCapabilities(getGLP());
         runTestGL(caps, FrameLayout.Flow, true/* twoCanvas */, true /* resizeByComp */);
     }
 
     @Test
-    public void test05_Compo_DblBrd_Two() throws InterruptedException, InvocationTargetException {
-        if( testNum != -1 && testNum != 5 ) { return ; }
+    public void test06_Compo_DblBrd_Two() throws InterruptedException, InvocationTargetException {
+        if( testNum != -1 && testNum != 6 ) { return ; }
         final GLCapabilities caps = new GLCapabilities(getGLP());
         runTestGL(caps, FrameLayout.DoubleBorderCenterSurrounded, true/* twoCanvas */, true /* resizeByComp */);
     }
     
     @Test
-    public void test06_Compo_Box_Two() throws InterruptedException, InvocationTargetException {
-        if( testNum != -1 && testNum != 6 ) { return ; }
+    public void test07_Compo_Box_Two() throws InterruptedException, InvocationTargetException {
+        if( testNum != -1 && testNum != 7 ) { return ; }
         final GLCapabilities caps = new GLCapabilities(getGLP());
         runTestGL(caps, FrameLayout.Box, true/* twoCanvas */, true /* resizeByComp */);
     }
     
     @Test
+    public void test08_Compo_Split_Two() throws InterruptedException, InvocationTargetException {
+        if( testNum != -1 && testNum != 8 ) { return ; }
+        final GLCapabilities caps = new GLCapabilities(getGLP());
+        runTestGL(caps, FrameLayout.Split, true/* twoCanvas */, true /* resizeByComp */);
+    }
+    
+    @Test
     public void test10_Frame_None_One() throws InterruptedException, InvocationTargetException {
         if( testNum != -1 && testNum != 10 ) { return ; }
         final GLCapabilities caps = new GLCapabilities(getGLP());
@@ -378,26 +436,40 @@ public class TestBug816OSXCALayerPosAWT extends UITestCase {
     }
     
     @Test
-    public void test14_Frame_Flow_Two() throws InterruptedException, InvocationTargetException {
-        if( testNum != -1 && testNum != 14 ) { return ; }
+    public void test14_Frame_Split_One() throws InterruptedException, InvocationTargetException {
+        if( testNum != -1 && testNum != 14) { return ; }
+        final GLCapabilities caps = new GLCapabilities(getGLP());
+        runTestGL(caps, FrameLayout.Split, false /* twoCanvas */, false /* resizeByComp */);
+    }
+    
+    @Test
+    public void test15_Frame_Flow_Two() throws InterruptedException, InvocationTargetException {
+        if( testNum != -1 && testNum != 15 ) { return ; }
         final GLCapabilities caps = new GLCapabilities(getGLP());
         runTestGL(caps, FrameLayout.Flow, true/* twoCanvas */, false /* resizeByComp */);
     }
 
     @Test
-    public void test15_Frame_DblBrd_Two() throws InterruptedException, InvocationTargetException {
-        if( testNum != -1 && testNum != 15 ) { return ; }
+    public void test16_Frame_DblBrd_Two() throws InterruptedException, InvocationTargetException {
+        if( testNum != -1 && testNum != 16 ) { return ; }
         final GLCapabilities caps = new GLCapabilities(getGLP());
         runTestGL(caps, FrameLayout.DoubleBorderCenterSurrounded, true/* twoCanvas */, false /* resizeByComp */);
     }
     
     @Test
-    public void test16_Frame_Box_Two() throws InterruptedException, InvocationTargetException {
-        if( testNum != -1 && testNum != 16 ) { return ; }
+    public void test17_Frame_Box_Two() throws InterruptedException, InvocationTargetException {
+        if( testNum != -1 && testNum != 17 ) { return ; }
         final GLCapabilities caps = new GLCapabilities(getGLP());
         runTestGL(caps, FrameLayout.Box, true/* twoCanvas */, false /* resizeByComp */);
     }
     
+    @Test
+    public void test18_Frame_Split_Two() throws InterruptedException, InvocationTargetException {
+        if( testNum != -1 && testNum != 18 ) { return ; }
+        final GLCapabilities caps = new GLCapabilities(getGLP());
+        runTestGL(caps, FrameLayout.Split, true/* twoCanvas */, false /* resizeByComp */);
+    }
+    
     static int testNum = -1;
     
     public static void main(String args[]) {
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/awt/Bug816AppletGLCanvas01.java b/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/awt/Bug816AppletGLCanvas01.java
new file mode 100644
index 000000000..175b053d1
--- /dev/null
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/awt/Bug816AppletGLCanvas01.java
@@ -0,0 +1,134 @@
+/**
+ * Copyright 2013 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ * 
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ * 
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package com.jogamp.opengl.test.junit.jogl.demos.es2.awt;
+
+import java.applet.Applet;
+import java.awt.Color;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+
+import javax.media.opengl.GL;
+import javax.media.opengl.GLAutoDrawable;
+import javax.media.opengl.GLCapabilities;
+import javax.media.opengl.GLCapabilitiesImmutable;
+import javax.media.opengl.GLEventListener;
+import javax.media.opengl.GLProfile;
+import javax.media.opengl.awt.GLCanvas;
+import javax.swing.JFrame;
+import javax.swing.JPanel;
+
+/**
+ * Bug 816: OSX CALayer Positioning Bug.
+ * <p>
+ * Diff. OSX CALayer positioning w/ java6, [7uxx..7u40[, and >= 7u40
+ * </p>
+ * <p>
+ * Test simply positions a GLCanvas via setBounds(..) within it's Applet.
+ * </p>
+ */
+@SuppressWarnings("serial")
+public class Bug816AppletGLCanvas01 extends Applet implements GLEventListener {
+
+  public Bug816AppletGLCanvas01() {
+  }
+
+  public static JFrame frame;
+  public static JPanel appletHolder;
+  public static boolean isApplet = true;
+
+  static public void main(String args[]) {
+    Applet myApplet = null;
+    isApplet = false;
+
+    myApplet = new Bug816AppletGLCanvas01();
+    appletStarter(myApplet, "Bug861AppletGLCanvasTest01", 800, 600);
+  }
+
+  static public void appletStarter(final Applet des, String frameName, int width, int height) {
+    appletHolder = new JPanel();
+    if (frame != null) {
+      frame.dispose();
+      frame = null;
+    }
+    frame = new JFrame(frameName);
+    frame.setVisible(false);
+    frame.getContentPane().add(appletHolder);
+
+    appletHolder.setLayout(null);
+    des.setBounds(0, 0, width, height);
+    appletHolder.add(des);
+
+    frame.setVisible(true);
+    int frameBorderSize = appletHolder.getLocationOnScreen().x - frame.getLocationOnScreen().x;
+    int titleBarHeight = appletHolder.getLocationOnScreen().y - frame.getLocationOnScreen().y;
+    int frameWidth = width + 2 * frameBorderSize;
+    int frameHeight = height + titleBarHeight + frameBorderSize;
+    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+    frame.setSize(frameWidth, frameHeight);
+    frame.setVisible(true);
+    des.init();
+    frame.addWindowListener(new WindowAdapter() {
+      public void windowClosing(WindowEvent e) {
+        System.exit(0);
+      }
+    });
+  }
+
+  public void init() {
+    initOpenGLAWT();
+  }
+
+  public void initOpenGLAWT() {
+    setBackground(Color.gray);
+    setLayout(null);
+
+    GLProfile glp = GLProfile.getDefault();
+    GLCapabilities caps = new GLCapabilities(glp);
+    GLCanvas canvas = new GLCanvas((GLCapabilitiesImmutable) caps);
+    canvas.setBounds(50, 50, 200, 450);
+    canvas.addGLEventListener(this);
+    add(canvas);
+  }
+
+  public void init(GLAutoDrawable gLAutoDrawable) {
+    GL gl = gLAutoDrawable.getGL();
+    gl.glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
+    gl.glClear(GL.GL_COLOR_BUFFER_BIT);
+    gLAutoDrawable.swapBuffers();
+  }
+
+  public void dispose(GLAutoDrawable glad) {
+  }
+
+  public void display(GLAutoDrawable glad) {
+  }
+
+  public void reshape(GLAutoDrawable glad, int i, int i1, int i2, int i3) {
+  }
+
+}
diff --git a/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/awt/Bug816AppletGLCanvas02.java b/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/awt/Bug816AppletGLCanvas02.java
new file mode 100644
index 000000000..9ae0a2bbd
--- /dev/null
+++ b/src/test/com/jogamp/opengl/test/junit/jogl/demos/es2/awt/Bug816AppletGLCanvas02.java
@@ -0,0 +1,85 @@
+/**
+ * Copyright 2013 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ * 
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ * 
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package com.jogamp.opengl.test.junit.jogl.demos.es2.awt;
+
+import java.applet.Applet;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.media.opengl.GLAnimatorControl;
+import javax.media.opengl.awt.GLCanvas;
+import javax.swing.BoxLayout;
+
+import com.jogamp.opengl.test.junit.jogl.demos.es2.GearsES2;
+import com.jogamp.opengl.util.Animator;
+
+/**
+ * Bug 816: OSX CALayer Positioning Bug.
+ * <p>
+ * Diff. OSX CALayer positioning w/ java6, [7uxx..7u40[, and >= 7u40
+ * </p>
+ * <p>
+ * Test uses a box layout within the Applet.
+ * </p>
+ */
+@SuppressWarnings("serial")
+public class Bug816AppletGLCanvas02 extends Applet {
+	private List<GLAnimatorControl> animators = new ArrayList<GLAnimatorControl>(2);
+
+	@Override
+	public void init() {
+		System.err.println("GearsApplet: init() - begin");
+		new BoxLayout(this, BoxLayout.X_AXIS);
+		setSize(600, 300);
+		add(createCanvas());
+		add(createCanvas());
+		System.err.println("GearsApplet: init() - end");
+	}
+
+	private GLCanvas createCanvas() {
+		GLCanvas canvas = new GLCanvas();
+		canvas.addGLEventListener(new GearsES2(1));
+		canvas.setSize(300, 300);
+		animators.add(new Animator(canvas));
+		return canvas;
+	}
+
+	@Override
+	public void start() {
+		for (GLAnimatorControl control : animators) {
+			control.start();
+		}
+	}
+
+	@Override
+	public void stop() {
+		for (GLAnimatorControl control : animators) {
+			control.stop();
+		}
+	}
+}