code: @Override
    public MtasTokenizer create(AttributeFactory factory) {
      MtasTokenizer tokenizer = null;
      try {
        tokenizer = create(factory, null);
      } catch (IOException e) {
        log.error(e);
      }
      return tokenizer;
    }
docs: /*
  (non-Javadoc)
  
  @see
  org.apache.lucene.analysis.util.TokenizerFactory#create(org.apache.lucene.
  util.AttributeFactory)