@Override
        public void run() {
          String[] joinOptions;
          String subject = null;
          String nickName = null;

          nickName =
              ConfigurationUtils.getChatRoomProperty(
                  chatRoomWrapper.getParentProvider().getProtocolProvider(),
                  chatRoomWrapper.getChatRoomID(),
                  "userNickName");
          if (nickName == null) {
            joinOptions =
                ChatRoomJoinOptionsDialog.getJoinOptions(
                    chatRoomWrapper.getParentProvider().getProtocolProvider(),
                    chatRoomWrapper.getChatRoomID(),
                    MUCActivator.getMUCService()
                        .getDefaultNickname(
                            chatRoomWrapper.getParentProvider().getProtocolProvider()));
            nickName = joinOptions[0];
            subject = joinOptions[1];
          }

          if (nickName != null)
            MUCActivator.getMUCService().joinChatRoom(chatRoomWrapper, nickName, null, subject);
        }
 @Override
 public void run() {
   String[] joinOptions;
   joinOptions =
       ChatRoomJoinOptionsDialog.getJoinOptions(
           chatRoomWrapper.getParentProvider().getProtocolProvider(),
           chatRoomWrapper.getChatRoomID(),
           MUCActivator.getMUCService()
               .getDefaultNickname(chatRoomWrapper.getParentProvider().getProtocolProvider()));
   if (joinOptions[0] == null) return;
   MUCActivator.getMUCService()
       .joinChatRoom(chatRoomWrapper, joinOptions[0], null, joinOptions[1]);
 }
      @Override
      public void run() {
        ChatRoom chatRoom = chatRoomWrapper.getChatRoom();

        if (chatRoom != null) {
          ChatRoomWrapper leavedRoomWrapped =
              MUCActivator.getMUCService().leaveChatRoom(chatRoomWrapper);
          if (leavedRoomWrapped != null)
            MUCActivator.getUIService().closeChatRoomWindow(leavedRoomWrapped);
        }

        MUCActivator.getUIService().closeChatRoomWindow(chatRoomWrapper);

        MUCActivator.getMUCService().removeChatRoom(chatRoomWrapper);
      }
 @Override
 public void run() {
   ChatRoomJoinOptionsDialog.getJoinOptions(
       true,
       chatRoomWrapper.getParentProvider().getProtocolProvider(),
       chatRoomWrapper.getChatRoomID(),
       MUCActivator.getMUCService()
           .getDefaultNickname(chatRoomWrapper.getParentProvider().getProtocolProvider()));
 }
    /**
     * Checks if the menu item should be enabled or disabled.
     *
     * @param contact the contact associated with the menu item.
     * @return <tt>true</tt> if the item should be enabled and <tt>false</tt> if not.
     */
    public boolean check(SourceContact contact) {
      ChatRoomWrapper chatRoomWrapper =
          MUCActivator.getMUCService().findChatRoomWrapperFromSourceContact(contact);
      ChatRoom chatRoom = null;
      if (chatRoomWrapper != null) {
        chatRoom = chatRoomWrapper.getChatRoom();
      }

      if ((chatRoom != null) && chatRoom.isJoined()) return false;
      return true;
    }
    @Override
    public boolean isVisible(SourceContact actionSource) {
      if (!(actionSource instanceof ChatRoomSourceContact)) return false;

      if (name.equals("autojoin") || name.equals("autojoin_pressed")) {
        ChatRoomSourceContact contact = (ChatRoomSourceContact) actionSource;
        ChatRoomWrapper room =
            MUCActivator.getMUCService().findChatRoomWrapperFromSourceContact(contact);
        if (name.equals("autojoin")) return !room.isAutojoin();

        if (name.equals("autojoin_pressed")) return room.isAutojoin();
      }
      return true;
    }
    @Override
    public boolean isVisible(SourceContact actionSource) {
      if (actionSource instanceof ChatRoomSourceContact) {
        if (name.equals("leave")) {
          return actionsEnabledCheckers[3].check(actionSource);
        } else if (name.equals("join")) {
          return actionsEnabledCheckers[1].check(actionSource);
        } else {
          ChatRoomSourceContact contact = (ChatRoomSourceContact) actionSource;
          ChatRoomWrapper room =
              MUCActivator.getMUCService().findChatRoomWrapperFromSourceContact(contact);
          if (room == null) return false;

          if (name.equals("autojoin")) return room.isAutojoin();
          else if (name.equals("autojoin_pressed")) return !room.isAutojoin();
        }
      }
      return false;
    }
 /**
  * Sets the source contact.
  *
  * @param contact the contact to set
  */
 public void setContact(SourceContact contact) {
   this.contact = contact;
   chatRoomWrapper = MUCActivator.getMUCService().findChatRoomWrapperFromSourceContact(contact);
 }
 @Override
 public boolean isSelected(SourceContact contact) {
   ChatRoomWrapper chatRoomWrapper =
       MUCActivator.getMUCService().findChatRoomWrapperFromSourceContact(contact);
   return chatRoomWrapper.isAutojoin();
 }
 @Override
 public void run() {
   MUCActivator.getMUCService().openChatRoom(chatRoomWrapper);
 }