code: private void _put(String key, Object o)
  	{
  		Map<String, Object> m = tlm.get();
  
  		if (m == null)
  		{
  			m = new Hashtable<String, Object>();
  			tlm.set(m);
  		}
  
  		m.put(key, o);
  	}
docs: SECTION: MUTATORS - INTERNAL, PRIVATE