There really isn't a good way to do it unfortunately. A custom-handler would probably be your best bet. You could just extend the org.jboss.logmanager.handlers.PeriodicRotatingFileHandler to get the same benefits. You would just override the doPublish(ExtLogRecord) and check the ExtLogRecord.getThrown() to determine if it's loggable or not.
I did file an issue to create a filter for exceptions, but I haven't really thought it all the way through yet.
James R. Perkins
OK, thank you for your quick response.
I will use 2 log-files for now, I think it's the easiest way to do this.