code: public void setConnections(String uri, Set<ServerSentEventConnection> uriConnections) {
          Objects.requireNonNull(uri, Required.URI.toString());
          Objects.requireNonNull(uriConnections, Required.URI_CONNECTIONS.toString());
  
          this.cache.put(Default.SSE_CACHE_PREFIX.toString() + uri, uriConnections);
      }
docs: Sets the URI resources for a given URL
  
  @param uri The URI resource for the connection
  @param uriConnections The connections for the URI resource