private Response get(String path) throws IOException {
    return client.newCall(new Request.Builder().url(url(server, path)).build()).execute();
  }
Collector-only builds should be able to disable the query (and indirectly the UI), so that
associated assets 404 vs throw exceptions.
zipkin-server/src/test/java/zipkin2/server/internal/ITZipkinServerQueryDisabled.java