code: public Object find(Class entityClass, Object rowId) {
          EntityMetadata entityMetadata = KunderaMetadataManager.getEntityMetadata(kunderaMetadata, entityClass);
          List<String> relationNames = entityMetadata.getRelationNames();
          return find(entityClass, entityMetadata, rowId, relationNames);
      }
docs: Finds an entiry from database.
  
  @param entityClass
  the entity class
  @param rowId
  the row id
  @return the object