private void initKeyboardEquivalent() {
    String key = "TAB";
    boolean shifted = (indexDelta == -1);

    boolean tabDoesNotWork = true;
    if (tabDoesNotWork || GuiUtilities.isMacOs()) {
      key = (indexDelta == -1) ? "OPEN_BRACKET" : "CLOSE_BRACKET";
      shifted = true;
    }

    putValue(ACCELERATOR_KEY, GuiUtilities.makeKeyStroke(key, shifted));
  }