rm = new ResourceManager(); resourceManagers.put(serverID, rm);
h = new Holder();  holders.put(serverID, h);
   public synchronized ResourceManager getResourceManager(String serverID)   {      ResourceManager rm = (ResourceManager)resourceManagers.get(serverID);      if (rm == null)      {         rm = new ResourceManager();         resourceManagers.put(serverID, rm);      }      return rm;   }