During these (much deserved) vacations, I worked on a pet project of mine which uses CDI with the Weld implementation and SLF4J with the Logback implementation. The terms of the problem were very simple:  Iwanted the logs of my application to be displayed in a Swing table, i.e. a Logback appender had to write in a table. The table was managed in CDI but the appender was not: this was no surprise since many older-generation frameworks have a lifecycle management on their own.