SpringBoot Usage of System.out in Jetty GracefulShutdown

When using graceful shutdown with Jetty, current requests are written with system.out instead of logger. Was it intentional? Here is the code piece:

org.springframework.boot.web.embedded.jetty.GracefulShutdown#awaitShutdown

    private void awaitShutdown(GracefulShutdownCallback callback) {
        while (this.shuttingDown && this.activeRequests.get() > 0) {
            sleep(100);
        }
        System.out.println(this.activeRequests.get());
        this.shuttingDown = false;
        long activeRequests = this.activeRequests.get();
        if (activeRequests == 0) {
            logger.info("Graceful shutdown complete");
            callback.shutdownComplete(GracefulShutdownResult.IDLE);
        }
        else {
            logger.info(LogMessage.format("Graceful shutdown aborted with %d request(s) still active", activeRequests));
            callback.shutdownComplete(GracefulShutdownResult.REQUESTS_ACTIVE);
        }
    }

Looks like logger is already used in this method. I can fix it if ok.

Comment From: wilkinsona

No, that's not intentional. Looks like it's a leftover from getting things working with Jetty 12. Thanks for spotting it. A PR that removes it would be great please. Thanks.

Comment From: scottfrederick

Closing in favor of #39360