diff -r eb56196e2a3a -r a99429b721a9 jdk/src/java.desktop/unix/classes/sun/awt/X11/XMenuBarPeer.java
--- a/jdk/src/java.desktop/unix/classes/sun/awt/X11/XMenuBarPeer.java	Thu Mar 16 23:29:52 2017 +0300
+++ b/jdk/src/java.desktop/unix/classes/sun/awt/X11/XMenuBarPeer.java	Thu Mar 16 22:03:08 2017 +0300
@@ -298,25 +298,25 @@
      */
     protected Rectangle getSubmenuBounds(Rectangle itemBounds, Dimension windowSize) {
         Rectangle globalBounds = toGlobal(itemBounds);
-        Dimension screenSize = graphicsConfig.getBounds().getSize();
+        Rectangle screenBounds = getCurrentGraphicsConfiguration().getBounds();
         Rectangle res;
-        res = fitWindowBelow(globalBounds, windowSize, screenSize);
+        res = fitWindowBelow(globalBounds, windowSize, screenBounds);
         if (res != null) {
             return res;
         }
-        res = fitWindowAbove(globalBounds, windowSize, screenSize);
+        res = fitWindowAbove(globalBounds, windowSize, screenBounds);
         if (res != null) {
             return res;
         }
-        res = fitWindowRight(globalBounds, windowSize, screenSize);
+        res = fitWindowRight(globalBounds, windowSize, screenBounds);
         if (res != null) {
             return res;
         }
-        res = fitWindowLeft(globalBounds, windowSize, screenSize);
+        res = fitWindowLeft(globalBounds, windowSize, screenBounds);
         if (res != null) {
             return res;
         }
-        return fitWindowToScreen(windowSize, screenSize);
+        return fitWindowToScreen(windowSize, screenBounds);
     }
 
     /**