Description of problem:
Fields declared on @MappedSuperclass parent are not recognized on child entity by programmatic API mapping.

Workaround:
Overide getters on child entity.

Version-Release number of selected component (if applicable):
hibernate-search-4.1.0.Final, wfk-2.0.0.GA


How reproducible:
@MappedSuperclass
public abstract class FooAbstract {
    protected String bar;

    public String getBar() {
        return this.bar
    }
    ...
}

@Entity
public class Foo extends FooAbstract {}

@Factory
public SearchMapping getSearchMapping() {
    SearchMapping mapping = new SearchMapping();
    mapping
        .entity(Foo.class).indexed()
            .property("bar", ElementType.METHOD)
                .field();
}


Steps to Reproduce:
1. create data model with inheritance
2. map indexes using programmatic api
3. try to get inherited field value from extended entity
  
Actual results:
 org.hibernate.search.SearchException: Unable to find field bar in ...


Expected results:
 return value of field

Additional info:
reported on jira too: https://hibernate.onjira.com/browse/HSEARCH-1108