--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.desktop/macosx/native/libawt_lwawt/awt/AWTSurfaceLayers.m	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2011, 2016, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#import "AWTSurfaceLayers.h"
+#import "ThreadUtilities.h"
+#import "LWCToolkit.h"
+
+#import <JavaNativeFoundation/JavaNativeFoundation.h>
+#import <QuartzCore/CATransaction.h>
+
+@implementation AWTSurfaceLayers
+
+@synthesize windowLayer;
+
+- (id) initWithWindowLayer:(CALayer *)aWindowLayer {
+    self = [super init];
+    if (self == nil) return self;
+
+    self.windowLayer = aWindowLayer;
+
+    return self;
+}
+
+- (void) dealloc {
+    self.windowLayer = nil;
+    [super dealloc];
+}
+
+- (CALayer *) layer {
+    return layer;
+}
+
+- (void) setLayer:(CALayer *)newLayer {
+    if (layer != newLayer) {
+        if (layer != nil || newLayer == nil) {
+            [layer removeFromSuperlayer];
+            [layer release];
+        }
+
+        if (newLayer != nil) {
+            layer = [newLayer retain];
+            // REMIND: window layer -> container layer
+            [windowLayer addSublayer: layer];
+        }
+    }
+}
+
+// Updates back buffer size of the layer if it's an OpenGL layer
+// including all OpenGL sublayers
++ (void) repaintLayersRecursively:(CALayer*)aLayer {
+    if ([aLayer isKindOfClass:[CAOpenGLLayer class]]) {
+        [aLayer setNeedsDisplay];
+    }
+    for(CALayer *child in aLayer.sublayers) {
+        [AWTSurfaceLayers repaintLayersRecursively: child];
+    }
+}
+
+- (void) setBounds:(CGRect)rect {
+    // translates values to the coordinate system of the "root" layer
+    rect.origin.y = windowLayer.bounds.size.height - rect.origin.y - rect.size.height;
+    [CATransaction begin];
+    [CATransaction setDisableActions:YES];
+    layer.frame = rect;
+    [CATransaction commit];
+    [AWTSurfaceLayers repaintLayersRecursively:layer];
+}
+
+@end
+
+/*
+ * Class:     sun_lwawt_macosx_CPlatformComponent
+ * Method:    nativeCreateLayer
+ * Signature: ()J
+ */
+JNIEXPORT jlong JNICALL
+Java_sun_lwawt_macosx_CPlatformComponent_nativeCreateComponent
+(JNIEnv *env, jobject obj, jlong windowLayerPtr)
+{
+  __block AWTSurfaceLayers *surfaceLayers = nil;
+
+JNF_COCOA_ENTER(env);
+
+    [ThreadUtilities performOnMainThreadWaiting:YES block:^(){
+
+        CALayer *windowLayer = jlong_to_ptr(windowLayerPtr);
+        surfaceLayers = [[AWTSurfaceLayers alloc] initWithWindowLayer: windowLayer];
+    }];
+    
+JNF_COCOA_EXIT(env);
+
+  return ptr_to_jlong(surfaceLayers);
+}
+
+/*
+ * Class:     sun_lwawt_macosx_CPlatformComponent
+ * Method:    nativeSetBounds
+ * Signature: (JIIII)V
+ */
+JNIEXPORT void JNICALL Java_sun_lwawt_macosx_CPlatformComponent_nativeSetBounds
+(JNIEnv *env, jclass clazz, jlong surfaceLayersPtr, jint x, jint y, jint width, jint height)
+{
+JNF_COCOA_ENTER(env);
+
+  AWTSurfaceLayers *surfaceLayers = OBJC(surfaceLayersPtr);
+    
+  [ThreadUtilities performOnMainThreadWaiting:NO block:^(){
+
+      CGRect rect = CGRectMake(x, y, width, height);
+      [surfaceLayers setBounds: rect];
+  }];
+
+JNF_COCOA_EXIT(env);
+}