UnitTestCacheFactory factory = new UnitTestCacheFactory();
Configuration cfg = UnitTestConfigurationFactory.createConfiguration(CacheMode.LOCAL);
cfg.setIsolationLevel(IsolationLevel.REPEATABLE_READ);
cfg.setWriteSkewCheck(true);
cache = (CacheSPI) factory.createCache(cfg, false, getClass());
cache.start();
assert cache.getConfiguration().isWriteSkewCheck();
init();
CyclicBarrier barrier = new CyclicBarrier(nbWriters + 1);
List<Future<Void>> futures = new ArrayList<Future<Void>>(nbWriters);
for (int i = 0; i < nbWriters; i++) {