I’m not sure how we could support an immutable level in the JBoss Log Manager. That’s how, to my knowledge, all log managers work. They allow levels to be changed at runtime. By keeping a static final reference, that makes it a requirement to restart the JVM if you want to see messages at that level logged.

This would be an issue for any app that allows for log level changes, not just WildFly. However, this definitely affects WildFly as changing a log level shouldn’t really require restarting the server.