[logback-dev] Question about StackTrace Info

Hi, i've got some jboss classloading problem and want to analyze this. Logback does output exception traces with the source of the loaded class and the version - e.g. hibernate-core.jar; 3.6.6. Can you tell me where in the logback source code (e.g. File, line number, code sample) this is done, so i can have a look at it? thx Torsten