code: protected LockData getLockDataById(String nodeId)
     {
        try
        {
           return getLockDataById.run(nodeId);
        }
        catch (LockException e)
        {
           if (LOG.isTraceEnabled())
           {
              LOG.trace("An exception occurred: " + e.getMessage());
           }
        }
        return null;
     }
docs: Returns lock data by node identifier.