@Test
  public void searchForUsers() throws Exception {
     ftem = Search.getFullTextEntityManager(em);  // em is initialized in setup()

     QueryBuilder qb = ftem.getSearchFactory().buildQueryBuilder().forEntity(JPAUser.class).get();

     org.apache.lucene.search.Query qry = qb.keyword().onField("subjectDN").matching("subjectdn1").createQuery();

     javax.persistence.Query JPAftq = ftem.createFullTextQuery(qry, JPAUser.class);
    
     List<?> result = JPAftq.getResultList();

     System.out.println(result.toString());
     if(result.isEmpty())
        System.out.println("empty result set");
     else
        System.out.println("non-empty result set");
  }

@Indexed(index = "fulltext")
@Entity
@Table(name = "USER")
public class JPAUser extends User implements java.io.Serializable {

  // there are no global variables
  // left out constructors for the sake of space

  @Override
  @DocumentId
  @Id
  @Column(name = "user_id")
  @GeneratedValue(strategy = GenerationType.SEQUENCE)
  public long getUserId() {
    return super.getUserId();
  }

  @Override
  public void setUserId(long userId) {
    super.setUserId(userId);
  }

  @Override
  @Field(analyze = Analyze.YES, index = Index.YES, store = Store.YES)
  @Boost(value=2.0f)
  public String getEmail() {
    return super.getEmail();
  }

  @Override
  public void setEmail(String email) {
    super.setEmail(email);
  }

  @Override
  @Field(analyze = Analyze.YES, index = Index.YES, store = Store.YES)
  public String getSubjectDN() {
    return super.getSubjectDN();
  }

  @Override
  public void setSubjectDN(String subjectDN) {
    super.setSubjectDN(subjectDN);
  }
}