--- old/src/solaris/classes/sun/awt/X11/XDecoratedPeer.java	2012-04-26 19:02:26.303627603 -0400
+++ new/src/solaris/classes/sun/awt/X11/XDecoratedPeer.java	2012-04-26 19:02:26.092625671 -0400
@@ -721,15 +721,17 @@
             // Location, Client size + insets
             newLocation = new Point(xe.get_x() - currentInsets.left, xe.get_y() - currentInsets.top);
         } else {
-            // CDE/MWM/Metacity/Sawfish bug: if shell is resized using
-            // top or left border, we don't receive synthetic
-            // ConfigureNotify, only the one from X with zero
-            // coordinates.  This is the workaround to get real
-            // location, 6261336
+            // ICCCM 4.1.5 states that a real ConfigureNotify will be sent when
+            // a window is resized but the client can not tell if the window was
+            // moved or not. The client should consider the position as unkown
+            // and use TranslateCoordinates to find the actual position.
+            //
+            // TODO this should be the default for every case.
             switch (XWM.getWMID()) {
                 case XWM.CDE_WM:
                 case XWM.MOTIF_WM:
                 case XWM.METACITY_WM:
+                case XWM.MUTTER_WM:
                 case XWM.SAWFISH_WM:
                 {
                     Point xlocation = queryXLocation();