code: @SuppressWarnings("unchecked")
      @Override
      public Boolean execute() {
          try {
              SmartFoxServer.getInstance()
                  .getAPIManager().getBuddyApi()
                  .goOnline(CommandUtil.getSfsUser(user, api), online, fireServerEvent);
          } catch (SFSBuddyListException e) {
              throw new IllegalStateException(e);
          }
          return Boolean.FALSE;
      }
docs: /* (non-Javadoc)
  @see com.tvd12.ezyfox.core.command.BaseCommand#execute()