No logs from WireMock

[bartoliniii]

Hello!
I'm using the latest version of Spring Cloud Contract (4.0.3) with Spring Boot 3.1.0 with slf4j-api 2.0.7 with log4j 2.19.0.
I have a very simple stub runner run by annotation (@AutoConfigureStubRunner), with embedded wiremock run on random port and it works pretty well, but I can't see any logs from WireMock.

According to this article is should work out of the box, but it doesn't in my case.

I debugged a little and I found that the reason is that wiremock-jre8-standalone uses its own copy of slf4j classes prefixed with wiremock package (e.g. wiremock.org.slf4j.Logger) so my log configuration can't work with it and finally NOPLogger from wiremock.org.slf4j package is used.

I didn't find any way to make logger working. I even tried to replace wiremock-jre8-standalone and use a standard wiremock-jre8, but it is not possible - some classes e.g. HandlebarsTemplateProcessor uses repacked dependencies from standalone version of wiremock.

Did I miss something?
Is there any way to make it working?

[copbint]

I have come across this issue too, and can't find solution.

[marcingrzejszczak]

Do you have a small project that replicates this issue?

[tgeens]

@SpringBootTest
@AutoConfigureWireMock(port = 0)
public class AutoConfigureWireMockApplicationTests {

    @Autowired
    WireMockServer wireMockServer;

    @Test
    public void testLogging() {
        wireMockServer.stubFor(get(urlEqualTo("/test"))
                .willReturn(ok("Hello World!")));

        var result = WebClient.create()
                .get().uri("http://localhost:{port}/test", wireMockServer.port())
                .exchangeToMono(response -> response.bodyToMono(String.class))
                .block();

        assertThat(result).isEqualTo("Hello World!");
    }
}

Trying this (in my webflux project) gives 0 wiremock logging.

I tried setting logging.level.WireMock=DEBUG etc, but that gives the same result.

[tgeens]

As a workaround, I switched to the ConsoleNotifier and this works as expected:

    @Bean
    WireMockConfigurationCustomizer optionsCustomizer() {
        return config -> config.notifier(new ConsoleNotifier(true));
    }

That reduces the logging-problem to a slf4j/logback config issue? 🤔

[adamsmith118]

That reduces the logging-problem to a slf4j/logback config issue? 🤔

Presumably it's defaulting NOPLogger, which wouldn't write anything...