/**
  * Add a new player to the session
  *
  * @param account the account for the new player
  * @return success if successfully added player, failure otherwise
  * @throws JSONException
  * @throws JDOObjectNotFoundException
  */
 public JsonReturn addPlayer(String account) throws JSONException, JDOObjectNotFoundException {
   JsonReturn returnValue = new JsonReturn(JsonReturn.value.FAIL);
   AccountServer accountServer = AccountServer.fetch(gamePersistenceManagerServer, account);
   if (null != accountServer) {
     returnValue = getGameServer().addPlayer(this, account, getList().size());
     if (returnValue.success()) {
       accountServer.addSession(new Sid(getKey()));
       accountServer.commit();
       addListItem(account);
       commit();
     }
   }
   return returnValue;
 }
 /*
  * (non-Javadoc)
  *
  * @see
  * com.aboveware.abovec2dm.server.abovejsonrpc.Storage#delete(java.lang.String
  * )
  */
 @Override
 public void delete() {
   try {
     for (String player : getPlayers()) {
       AccountServer accountServer =
           AccountServer.fetch(getGamePersistenceManagerServer(), player);
       accountServer.removeSession(new Sid(getKey()));
       accountServer.commit();
       getPlayer(player).delete();
     }
     getGameServer().delete();
     super.delete();
   } catch (JSONException e) {
     // TODO Auto-generated catch block
     e.printStackTrace();
   }
 }