code: public boolean isLocalCache(String cacheContainerName, String localCacheName) throws Exception {
          if (!isCacheContainer(cacheContainerName)) {
              return false;
          }
  
          Address addr = Address.root().add(SUBSYSTEM, SUBSYSTEM_INFINISPAN, CACHE_CONTAINER, cacheContainerName);
          String haystack = LOCAL_CACHE;
          return null != findNodeInList(addr, haystack, localCacheName);
      }
docs: Checks to see if there is already a local cache with the given name.
  
  @param cacheContainerName the parent container
  @param localCacheName the name to check
  @return true if there is a local cache with the given name already in existence
  @throws Exception any error