src/java.desktop/macosx/classes/sun/lwawt/macosx/CWarningWindow.java

*** 204,222 ****
      @Override
      public void setVisible(boolean visible) {
          synchronized (lock) {
              final long nsWindowPtr = getNSWindowPtr();
  
-             // Process parent-child relationship when hiding
-             if (!visible) {
-                 // Unparent myself
-                 if (owner != null && owner.isVisible()) {
-                     CWrapper.NSWindow.removeChildWindow(
-                             owner.getNSWindowPtr(), nsWindowPtr);
-                 }
-             }
- 
              // Actually show or hide the window
              if (visible) {
                  CWrapper.NSWindow.orderFront(nsWindowPtr);
              } else {
                  CWrapper.NSWindow.orderOut(nsWindowPtr);
--- 204,213 ----
*** 224,237 ****
  
              this.visible = visible;
  
              // Manage parent-child relationship when showing
              if (visible) {
!                 // Add myself as a child
                  if (owner != null && owner.isVisible()) {
!                     CWrapper.NSWindow.addChildWindow(owner.getNSWindowPtr(),
!                             nsWindowPtr, CWrapper.NSWindow.NSWindowAbove);
  
                      // do not allow security warning to be obscured by other windows
                      applyWindowLevel(ownerWindow);
                  }
              }
--- 215,228 ----
  
              this.visible = visible;
  
              // Manage parent-child relationship when showing
              if (visible) {
!                 // Order myself above my parent
                  if (owner != null && owner.isVisible()) {
!                     CWrapper.NSWindow.orderWindow(nsWindowPtr,
!                             CWrapper.NSWindow.NSWindowAbove, owner.getNSWindowPtr());
  
                      // do not allow security warning to be obscured by other windows
                      applyWindowLevel(ownerWindow);
                  }
              }