How to Re-Execute Log4j “Default Initialization Procedure”?

Question

At runtime I often create/modify log4j Loggers, Appenders, Levels, Layouts, and time to time need to reset everything back to defaults.

Log4j

Answer 1

Jan Zyka's solution pointed me in the right direction, but I'm using an XML configuration file rather than a properties files. Here is the code that worked for me:

    LogManager.resetConfiguration(); // clear any existing config first
    LoggerRepository loggerRepository = LogManager.getLoggerRepository();
    DOMConfigurator domConfigurator = new DOMConfigurator();
    try (
        InputStream is = MyClassName.class.getResourceAsStream("/log4j.xml");
    ) {
        domConfigurator.doConfigure(is, loggerRepository);
    }
    LOGGER.info("abc123");

I get a properly formatted log4j log entry with "abc123" as the log message.