Transactional distributed shared cache store not working

public class DistSyncTxCacheStoreSharedTest extends BaseDistCacheStoreTest {

   public DistSyncTxCacheStoreSharedTest() {
      sync = true;
      tx = true;
      testRetVals = true;
      shared = true;
      INIT_CLUSTER_SIZE = 2;
      numOwners = 1;
   }

   public void testPutFromNonOwner() throws Exception {
      Cache<Object, String> cacheX = getFirstNonOwner("key1");
      CacheStore storeX = TestingUtil.extractComponent(
            cacheX, CacheLoaderManager.class).getCacheStore();
      cacheX.put("key1", "v1");
      assertEquals("v1", cacheX.get("key1"));
      assertNotNull(storeX.load("key1"));
      assertEquals("v1", storeX.load("key1").getValue());
   }

}