src/java.desktop/share/classes/com/sun/java/swing/plaf/motif/MotifPopupMenuUI.java

*** 105,114 ****
--- 105,115 ----
          return new ChangeListener() {
              public void stateChanged(ChangeEvent e) {}
          };
      }
  
+     @SuppressWarnings("deprecation")
      public boolean isPopupTrigger(MouseEvent e) {
          return ((e.getID()==MouseEvent.MOUSE_PRESSED)
                  && ((e.getModifiers() & MouseEvent.BUTTON3_MASK)!=0));
      }
  }