src/macosx/classes/sun/lwawt/macosx/CPlatformWindow.java

@@ -117,10 +117,11 @@
 
     static final int RESIZABLE = 1 << 9; // both a style bit and prop bit
     static final int NONACTIVATING = 1 << 24;
     static final int IS_DIALOG = 1 << 25;
     static final int IS_MODAL = 1 << 26;
+    static final int IS_POPUP = 1 << 27;
 
     static final int _STYLE_PROP_BITMASK = DECORATED | TEXTURED | UNIFIED | UTILITY | HUD | SHEET | CLOSEABLE | MINIMIZABLE | RESIZABLE;
 
     // corresponds to method-based properties
     static final int HAS_SHADOW = 1 << 10;

@@ -316,10 +317,11 @@
         // If the target is a dialog, popup or tooltip we want it to ignore the brushed metal look.
         if (isPopup) {
             styleBits = SET(styleBits, TEXTURED, false);
             // Popups in applets don't activate applet's process
             styleBits = SET(styleBits, NONACTIVATING, true);
+            styleBits = SET(styleBits, IS_POPUP, true);
         }
 
         if (Window.Type.UTILITY.equals(target.getType())) {
             styleBits = SET(styleBits, UTILITY, true);
         }