presto-main/src/main/java/io/prestosql/server/remotetask/HttpLocationFactory.java/HttpLocationFactory/HttpLocationFactory
class HttpLocationFactory:    public HttpLocationFactory(InternalNodeManager nodeManager, URI baseUri)
    {
        this.nodeManager = requireNonNull(nodeManager, "nodeManager is null");
        this.baseUri = requireNonNull(baseUri, "baseUri is null");
    }