I find hibernate-search-elasticsearch to be too big.
In order to put on my entity the annotation:

@AnalyzerDefs({
  @AnalyzerDef(
      tokenizer = @TokenizerDef(
      factory = ElasticsearchTokenizerFactory.class))})

I have to include org.hibernate:hibernate-search-elasticsearch:jar:5.8.2.Final which includes elasticsearch-rest-client and elasticsearch-rest-client-sniffer.
I find rest clients unnecessary and source of potential interference of dependencies especially for case when I do not use elasticsearch.

My suggestion is classes under `org.hibernate.search.elasticsearch.analyzer` package to be moved into a different module.