I use slf4j in a number of projects, some of which are libraries. For the libraries I like to include all the bridge (e.g. slfj4j-log4j13) and adapter (e.g. jcl-over-slf4j) jars with the library distribution so that people downloading the library don't have to then go and grab the slf4j distribution as well. However, from a maven perspective, doing this kind of a pain because there is no way to distinguish between the core slf4j artifacts, the bridge artifacts, and the adapter artifacts. So I would like to recommend change the group ID for the bridge and adapter artifacts to signify which they are. For example, using the group IDs org.slf4j.adapter and org.slf4j.bridge. With this I could create assemblies as followed: <dependencySet> <outputDirectory>/lib/slf4j-adpater</outputDirectory> <includes> <include>org.slf4j.adapter:*</include> </includes> </dependencySet> Does this seem reasonable? -- SWITCH Serving Swiss Universities -------------------------- Chad La Joie, Software Engineer, Net Services Werdstrasse 2, P.O. Box, 8021 Zürich, Switzerland phone +41 44 268 15 75, fax +41 44 268 15 68 chad.lajoie@switch.ch, http://www.switch.ch