@Test
 public void testNoOptionsQueryString() {
   HttpRequestOptions options = new ListContainerOptions();
   assertEquals(options.buildQueryParameters().size(), 0);
 }
 public String getFirstQueryOrNull(String string, @Nullable HttpRequestOptions options) {
   if (options == null) return null;
   Collection<String> values = options.buildQueryParameters().get(string);
   return (values != null && values.size() >= 1) ? values.iterator().next() : null;
 }