public void w(Object src, String msg, @Nullable Throwable thrown) {
        maybeLog(WARN, src, msg, thrown);
    }
public void w(Object src, String msg, @Nullable Throwable thrown) {
        maybeLog(WARN, src, msg, thrown);
    }
public void w ( Object src , String msg , @ Nullable Throwable thrown ) { maybeLog ( WARN , src , msg , thrown ) ; }
Send a WARN log message and log the exception.
Send a WARN log message and log the exception .