public List<TagSetView> jqpl_tagSetViews(Project project) {
        
        //cf. Special Result Types, Pro JPA2 p.193
        return em.createQuery(
        "SELECT NEW com.greensoft.entity.dto.tag.TagSetView(TYPE(t),t.id,t.name) "+
                "FROM TagSet t "+
                "WHERE t.project = :project "+
                "ORDER BY t.name",
        TagSetView.class)
                .setParameter("project",project)
                .getResultList();
    }

  
  public TagSetView(Class entityClass, Long id, String name) {
        super(entityClass,id,name);
    }

Exception [EclipseLink-3007] (Eclipse Persistence Services - 2.2.0.v20110202-r8913): org.eclipse.persistence.exceptions.ConversionException
 Exception Description: The object [TagSet], of class [class java.lang.String], could not be converted to [class java.lang.Class].  Ensure that the class [TagSet] is on the 
 CLASSPATH.  You may need to use alternate API passing in the appropriate class loader as required, or setting it on the default ConversionManager
 Internal Exception: java.lang.ClassNotFoundException: TagSet
 at org.eclipse.persistence.exceptions.ConversionException.couldNotBeConvertedToClass(ConversionException.java:87)