//Recovery
PersistentJournal recoverJournal = PersistentJournal.makeJournal(tempDirectory);
Xid[] recoveredXids = recoverJournal.recover();
assertEquals(3, recoveredXids.length);
Arrays.sort(recoveredXids);
assertEquals(makeXid(1), recoveredXids[0]);
assertEquals(makeXid(3), recoveredXids[1]);