Consider having the Extension implementation for extensions with deprecated subsystems register themselves as such ------------------------------------------------------------------------------------------------------------------ Key: WFLY-14006 URL: https://issues.redhat.com/browse/WFLY-14006 Project: WildFly Issue Type: Task Components: Management Reporter: Brian Stansberry Assignee: Yeray Borges Santana Priority: Minor ExtensionContext.registerSubsystem has an overloaded variant that takes a boolean 'deprecated' parameter. We never use it. For deprecated subsystems we *perhaps* should. I think most of our deprecated subsystems are using the SimpleResourceDefinition.setDeprecated API to trigger deprecation logging if the subsystem is actually added. So this extension call really is just for the case where the extension is included in the config but is not used for adding a subsystem. That's kind of a corner case so it's a valid question whether we want to add this setting and end up writing *two* messages to the log. So this issue is to track at least considering it.