public void incrementItem(final String name, final String key, final int amount) {
try {
final CacheResponse response = objectMapper.readValue(
requestFactory
.buildPostRequest(new IncrementCacheItemUrl(hostName, projectId, name, key),
new JsonHttpContent(JSON_FACTORY, new Increment().amount(amount))).execute()
.getContent(), CacheResponse.class);
validate(response, "added");