@Override
  public CASValue<Object> gets(String key) {
    return gets(key, transcoder);
  }
Gets (with CAS support) with a single key using the default transcoder.

@param key the key to get
@return the result from the cache and CAS id (null if there is none)
@throws OperationTimeoutException if the global operation timeout is
          exceeded
@throws IllegalStateException in the rare circumstance where queue is too
          full to accept any more requests
src/main/java/net/spy/memcached/MemcachedClient.java