public void testSilentLockFailureAffectsPostOperations() throws Exception {
      final Cache<Integer, String> cache = cache(0);
      final TransactionManager tm = cache.getAdvancedCache().getTransactionManager();
      final ExecutorService e = Executors.newCachedThreadPool();
      final CountDownLatch waitLatch = new CountDownLatch(1);
      final CountDownLatch continueLatch = new CountDownLatch(1);
      cache.put(1, "v1");

      Future<Void> f1 = e.submit(new Callable<Void>() {
         @Override
         public Void call() throws Exception {
            tm.begin();
            try {
               cache.put(1, "v2");
               waitLatch.countDown();
               continueLatch.await();
            } catch (Exception e) {
               tm.setRollbackOnly();
               throw e;
            } finally {
               if (tm.getStatus() == Status.STATUS_ACTIVE) tm.commit();
               else tm.rollback();
            }
            return null;
         }
      });


      Future<Void> f2 = e.submit(new Callable<Void>() {
         @Override
         public Void call() throws Exception {
            waitLatch.await();
            tm.begin();
            try {
               AdvancedCache<Integer, String> silentCache = cache.getAdvancedCache().withFlags(
                     Flag.FAIL_SILENTLY, Flag.ZERO_LOCK_ACQUISITION_TIMEOUT);
               silentCache.put(1, "v3");
               assert !silentCache.lock(1);
               assert "v1".equals(cache.get(1));
            } catch (Exception e) {
               tm.setRollbackOnly();
               throw e;
            } finally {
               if (tm.getStatus() == Status.STATUS_ACTIVE) tm.commit();
               else tm.rollback();

               continueLatch.countDown();
            }
            return null;
         }
      });

      f1.get();
      f2.get();      
   }