iswf.bounceSystem();
iswf.beginTran();
UnidirJoinParentEntity retrievedEntity = repo.list().get(0);
retrievedEntity.newChild("Child 1 of Parent 1");
retrievedEntity.newChild("Child 2 of Parent 1");
retrievedEntity.newChild("Child 3 of Parent 1");
iswf.commitTran();
iswf.bounceSystem();