}
DataContainer dc1 = c1.getAdvancedCache().getDataContainer();
assert dc1.size() == NUM_KEYS;
DummyInMemoryCacheStore cs = (DummyInMemoryCacheStore) TestingUtil.extractComponent(c1, CacheLoaderManager.class).getCacheStore();
assert cs.loadAllKeys(Collections.emptySet()).size() == NUM_KEYS;
addClusterEnabledCacheManager();
EmbeddedCacheManager cm2 = cacheManagers.get(1);
cm2.defineConfiguration(cacheName, buildConfiguration().build());
c2 = cache(1, cacheName);