try {
RuntimeTest2 test2 =
(RuntimeTest2) pm.find(RuntimeTest2.class, _oid2);
pm.remove(test2);
RuntimeTest1 test1 = new RuntimeTest1();
pm.persist(test1);
pm.remove(test1);
Extent ext = pm.createExtent(RuntimeTest1.class, true);
boolean foundOid1 = false;
boolean foundOid3 = false;