I have an Eclipse plugin (call it A) that uses and exports the logback classes. I have another plugin (call it B) that uses the above plugin and has a require-bundle in the manifest. When the plugin B starts up it can't find the logback.xml configuration file and as a result too much debugging information is generated. The logback.xml file resides in the bin directory of A and the run-time classpath has a "." so it should be on the classpath. I have looked at both bundles in the OSGi console and the exports/imports look correct. The logback.xml is found when I specify it as an VM argument. Any ideas why it is not found? Thanks in advance. Barry Hathaway