Question

I need to mask the password before it gets displayed in the log file.

the format of the password is “password”:”pswd123″. it’s alphanumeric only. After masking, it’d be “password”:”*“

in my custom Pattern class, I’ve the following reg expression but it’s not being picked up. any idea how it should be? thx

@Override
public String format(LoggingEvent event) {

    String msg = super.format(event);

    // regexp not being picked up
    msg = msg.replace("\"password\":\"[^\"]*", "password:\"***\"");

    return msg;
}

Answer 1

String.replace() takes a CharSequence, not a regex. You’re probably looking for replaceAll() or replaceFirst().