JAVA

spring log info

Lombok has annotations for that.
Annotate your class with @Slf4j and a static log fiedl will be generated.

spring security logging

logging.level.org.springframework.security=DEBUG

spring logback configuration

@RestController
public class LoggingController {

    Logger logger = LoggerFactory.getLogger(LoggingController.class);

    @RequestMapping("/")
    public String index() {
        logger.trace("A TRACE Message");
        logger.debug("A DEBUG Message");
        logger.info("An INFO Message");
        logger.warn("A WARN Message");
        logger.error("An ERROR Message");

        return "Howdy! Check out the Logs to see the output...";
    }
}