Hi Ceki, I added to log4j-over-slf4j some trivial implementations of Log4J classes because this resolve problems when using log4j-over-slf4j togheter with an IBM content manager (it makes possible using log4j-over-slf4j togheter with an IBM content manager). See also my blog entry: http://www.belaso.de/articles/filenet-ce-with-slf4j/ Please review my changes: https://github.com/qos-ch/slf4j/commit/b26727a6b2e4f52190d06584eab87eef64f1b... https://github.com/qos-ch/slf4j/commit/004b5d4879a079f3d6f610b7fe339a0fad7d4... It whould be great if you can release a new SLF4J version (1.7.6). Regards Christian