Jena Lucene full text search return no results

[Alex To]

Hi

 I created a Jena Lucene index with this configuration

var entDef = new EntityDefinition(
        "uri",
        "label",
        "graph", RDFS.label.asNode());
entDef.setLangField("lang");
entDef.setUidField("uid");


Then I loaded schema.org ontology and queried using Lucene API directly on
the index directory, I got expected result

QueryParser parser = new QueryParser("label", analyzer);
Query query = parser.parse("tax~");

But if I use Jena query, I got no result

ParameterizedSparqlString q = new ParameterizedSparqlString(
        "SELECT ?s WHERE { " +
                "   ?s text:query 'Taxi' " +
                "}");

q.setNsPrefix("text", "http://jena.apache.org/text#";);


A minimal project to illustrate the problem can be found here
https://github.com/AlexTo/jena-lab/blob/master/src/main/java/com/company/MainSearch.java

If you run index() and then searchLucene() you can see expected results but
if you run searchJena() you see nothing. What did I miss??

Thank you

Best Regards