code: public void registerTemplate(String name, ITemplate template) {
          if (null == template) throw new NullPointerException();
  //        if (_templates.containsKey(name)) {
  //            return false;
  //        }
          _templates.put(name, template);
          return;
      }
docs: Register a tag using the given name
  <p/>
  <p>Not an API for user application</p>
  
  @param name
  @param template