@Test
  void basicDefaultMethod() {
    String url = "http://localhost:" + server.getPort();

    TestInterface api = Feign.builder().target(TestInterface.class, url);
    String result = api.independentDefaultMethod();

    assertThat(result.equals("default result")).isTrue();
  }
Shows exception handling isn't required to coerce 204 to null or empty
core/src/test/java/feign/FeignBuilderTest.java