cache.putAll(Collections.singletonMap("k", "v"));
assert "v".equals(cache.get("k"));
final DummyTransaction tx = ((DummyTransactionManager) tm).getTransaction();
assert tx.runPrepare();
assertLocked("k");
tx.runCommitTx();
assertNoLocks();
tm.suspend();
tm.begin();
assert "v".equals(cache.get("k"));