code: CacheResourceCore createCore(String path, String name, int type) throws IOException {
  	CacheResourceCore value = new CacheResourceCore(type, path, name);
  	getCache().put(toKey(path, name), value, null, null);
  	return value;
      }
docs: create a new core
  
  @param path
  @param type
  @return created core
  @throws IOException