Hi, I wonder if log4j license (Apache License Version 2.0) is compatible with LGPLv2.1
I am using jboss-seam-2.2.0.GA, licensed under LGPLv2.1 and the lib directory includes log4j.jar file (log4j version 1.2.14). According to Apache website, Apache License Version 2.0 is incompatible with GPLv2. Can log4j be considered a system library? In my case, I have to release a GPLv2 project based on seam and log4j but I'm not sure if I can legally do that.