@Override
    public void processPacket(Packet packet) {
      final Presence presence = ((Presence) packet);
      if (presence.getType() != Presence.Type.subscribe) return;
      LOG.info("Subscribe request from " + presence.getFrom());

      if (myIgnoreList.isIgnored(presence.getFrom())) {
        LOG.info(presence.getFrom() + " in ignore list");
        return;
      }

      if (isUserInMyContactListAndActive(presence.getFrom()) || Pico.isUnitTest()) {
        acceptSubscription(presence, true);
        return;
      }

      UIUtil.invokeLater(
          () -> acceptSubscription(presence, myUI.shouldAcceptSubscriptionRequest(presence)));
    }
  private DefaultActionGroup createActionGroup() {
    DefaultActionGroup actionGroup = new DefaultActionGroup();
    if (ApplicationManager.getApplication() == null || Pico.isUnitTest()) return actionGroup;

    addRefreshAction(actionGroup);
    myOpenFileAction = new OpenFileAction(myTree, myIdeFacade);
    myOpenFileAction.registerCustomShortcutSet(
        new CustomShortcutSet(KeyStroke.getKeyStroke(KeyEvent.VK_F4, 0)), myTree);

    AnAction diffAction =
        new DiffAction(myTree) {
          protected User getUser() {
            return myUser;
          }
        };

    diffAction.registerCustomShortcutSet(CommonShortcuts.getDiff(), myTree);

    actionGroup.add(myOpenFileAction);
    actionGroup.add(diffAction);

    addToggleReadOnlyAction(actionGroup);
    return actionGroup;
  }