How to output log log.error in @Advice

[1095071913]

@Slf4j
public class XXLJobInstrumentation implements TypeInstrumentation {

public static class XXLJobAdvice {

        @Advice.OnMethodEnter(suppress = Throwable.class)
        public static void onEnter() {
            log.error("1111111111111111111111111122222222222222222222");
        }

    }

}

Writing like this will report java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory,

How should help me achieve

[laurit]

I'd use System.err.println for some quick debugging. For logging agent uses java.util.logging api. Usages of that api are rewritten to agents internal logging api. When using logger in the advice you should not attempt to add the logger as a static field of the advice or the type instrumentation class.

[1095071913]

I do want to log some logs with log.error, not for quick debugging, but I don't know what to do

[1095071913]

I know what to do. Thank you, okay