code: public synchronized Slot slot(String name) {
  		name = name == null ? "" : name.trim();
  		Slot slot = localMap.get(name);
  		if (slot == null)  {
  			slot = new Slot(local++, name);
  			localMap.put(name, slot);
  		}
  		return slot;
  	}
docs: /* (non-Javadoc)
  @see com.att.env.Store#slot(java.lang.String)