src/java.desktop/share/classes/javax/swing/plaf/basic/BasicComboPopup.java

*** 528,546 ****
       *
       * @return a <code>JList</code> used to display the combo box items
       */
      protected JList<Object> createList() {
          return new JList<Object>( comboBox.getModel() ) {
-             @SuppressWarnings("deprecation")
              public void processMouseEvent(MouseEvent e)  {
                  if (BasicGraphicsUtils.isMenuShortcutKeyDown(e))  {
                      // Fix for 4234053. Filter out the Control Key from the list.
                      // ie., don't allow CTRL key deselection.
                      Toolkit toolkit = Toolkit.getDefaultToolkit();
                      MouseEvent newEvent = new MouseEvent(
                                         (Component)e.getSource(), e.getID(), e.getWhen(),
!                                        e.getModifiers() ^ toolkit.getMenuShortcutKeyMask(),
                                         e.getX(), e.getY(),
                                         e.getXOnScreen(), e.getYOnScreen(),
                                         e.getClickCount(),
                                         e.isPopupTrigger(),
                                         MouseEvent.NOBUTTON);
--- 528,545 ----
       *
       * @return a <code>JList</code> used to display the combo box items
       */
      protected JList<Object> createList() {
          return new JList<Object>( comboBox.getModel() ) {
              public void processMouseEvent(MouseEvent e)  {
                  if (BasicGraphicsUtils.isMenuShortcutKeyDown(e))  {
                      // Fix for 4234053. Filter out the Control Key from the list.
                      // ie., don't allow CTRL key deselection.
                      Toolkit toolkit = Toolkit.getDefaultToolkit();
                      MouseEvent newEvent = new MouseEvent(
                                         (Component)e.getSource(), e.getID(), e.getWhen(),
!                                        e.getModifiersEx() ^ toolkit.getMenuShortcutKeyMaskEx(),
                                         e.getX(), e.getY(),
                                         e.getXOnScreen(), e.getYOnScreen(),
                                         e.getClickCount(),
                                         e.isPopupTrigger(),
                                         MouseEvent.NOBUTTON);