SpringWebfluxClientRequestTagAdapter extends HttpTagAndSpanNamingAdapter<ClientRequest, ClientResponse> { @Override public @Nullable String getSpanHandlerTagValue( @Nullable ClientRequest request, @Nullable ClientResponse response ) { return "spring.webflux.client"; }  static SpringWebfluxClientRequestTagAdapter getDefaultInstance(); @Override @Nullable String getRequestUrl(@Nullable ClientRequest request); @Override @Nullable Integer getResponseHttpStatus(@Nullable ClientResponse response); @Override @Nullable String getRequestHttpMethod(@Nullable ClientRequest request); @Override @Nullable String getRequestPath(@Nullable ClientRequest request); @Override @Nullable String getRequestUriPathTemplate(
        @Nullable ClientRequest request,
        @Nullable ClientResponse response
    ); @Override @Nullable String getHeaderSingleValue(@Nullable ClientRequest request, @NotNull String headerKey); @Override @Nullable List<String> getHeaderMultipleValue(
        @Nullable ClientRequest request, @NotNull String headerKey
    ); @Override @Nullable String getSpanHandlerTagValue(
        @Nullable ClientRequest request, @Nullable ClientResponse response
    );  }
@Test public void getSpanHandlerTagValue_works_as_expected() { assertThat(implSpy.getSpanHandlerTagValue(requestMock, responseMock)).isEqualTo("spring.webflux.client"); verifyZeroInteractions(requestMock, responseMock); }