• Create a new Transformer class
• attach it to an Query or Critiera
• The Query will delivery a fully filled entity
• The Criteria not
• Tested also with Criteria.ALIAS_TO_ENTITY_MAP with the same results

Example-Code:

List objects = getSession().createCriteria(MyEntity.class)
.setResultTransformer(new MyTransformer())
.list();

List objects = getSession().createQuery("from MyEntity"))
.setResultTransformer(new MyTransformer())
.list();

public class MyTransformer implements ResultTransformer {

public Object transformTuple(Object[] rowData, String[] aliasNames) { // only id is populated in rowData[0] when executed via criteria }

public List transformList(List list) { return list; }
}

Source: http://stackoverflow.com/questions/9913691/3-6-8-criteria-resulttransformer-is-not-populating-tuple-data