--- old/modules/javafx.graphics/src/main/native-glass/mac/GlassScreen.m	2016-08-04 02:44:33.000000000 +0300
+++ new/modules/javafx.graphics/src/main/native-glass/mac/GlassScreen.m	2016-08-04 02:44:33.000000000 +0300
@@ -39,6 +39,8 @@
 
 #define MAX_DISPLAY_COUNT 1024
 
+NSSize maxScreenDimensions;
+
 CGFloat GetScreenScaleFactor(NSScreen *screen)
 {
     if ([screen respondsToSelector:@selector(backingScaleFactor)]) {
@@ -132,7 +134,17 @@
                                                       jScreenClass,
                                                       NULL);
     GLASS_CHECK_EXCEPTION(env);
+    maxScreenDimensions = NSMakeSize(0.f,0.f);
     for (NSUInteger index = 0; index < [screens count]; index++) {
+        NSRect screenRect = [[screens objectAtIndex:index] frame];
+
+        if (screenRect.size.width > maxScreenDimensions.width) {
+            maxScreenDimensions.width = screenRect.size.width;
+        }
+        if (screenRect.size.height > maxScreenDimensions.height) {
+            maxScreenDimensions.height = screenRect.size.height;
+        }
+
         jobject javaScreen = createJavaScreen(env, [screens objectAtIndex:index]);
         (*env)->SetObjectArrayElement(env, screenArray, index, javaScreen);
         GLASS_CHECK_EXCEPTION(env);