FlagsFilter { public static Builder builder() { return new Builder(); } private  FlagsFilter(SystemFlagFilter systemFlagFilter, UserFlagFilter userFlagFilter); static Builder builder(); static FlagsFilter noFilter(); SystemFlagFilter getSystemFlagFilter(); UserFlagFilter getUserFlagFilter();  }
@Test void buildShouldNotRequireAnyProperty() { assertThat(FlagsFilter.builder().build()).isNotNull(); }