Added @Override to applicable methods

dspace-api/src/main/java/org/dspace/content/RelationshipServiceImpl.java

@@ -288,6 +288,7 @@ public class RelationshipServiceImpl implements RelationshipService {
         return listToReturn;
     }
 
+    @Override
     public List<Relationship> findByItemAndRelationshipType(Context context, Item item,
                                                             RelationshipType relationshipType)
         throws SQLException {

dspace-api/src/main/java/org/dspace/content/RelationshipTypeServiceImpl.java

@@ -85,6 +85,7 @@ public class RelationshipTypeServiceImpl implements RelationshipTypeService {
         relationshipTypeDAO.delete(context, relationshipType);
     }
 
+    @Override
     public List<RelationshipType> findByLeftOrRightLabel(Context context, String label) throws SQLException {
         return relationshipTypeDAO.findByLeftOrRightLabel(context, label);
     }

dspace-api/src/main/java/org/dspace/content/dao/impl/RelationshipTypeDAOImpl.java

@@ -38,6 +38,7 @@ public class RelationshipTypeDAOImpl extends AbstractHibernateDAO<RelationshipTy
         return uniqueResult(context, criteriaQuery, false, RelationshipType.class, -1, -1);
     }
 
+    @Override
     public List<RelationshipType> findByLeftOrRightLabel(Context context, String label) throws SQLException {
         CriteriaBuilder criteriaBuilder = getCriteriaBuilder(context);
         CriteriaQuery criteriaQuery = getCriteriaQuery(criteriaBuilder, RelationshipType.class);