public void concUpdate(ExtObjectContainer oc, int seq) throws Exception { Query q = oc.query(); q.constrain(IndexedByIdentityTestCase.class); ObjectSet os = q.execute(); Assert.areEqual(COUNT, os.size()); while (os.hasNext()) { IndexedByIdentityTestCase idi = (IndexedByIdentityTestCase) os.next(); idi.atom.name = "updated" + seq; oc.store(idi); Thread.sleep(100); } }