commons-logging.jar Commons Logging, 1.04 http://commons.apache.org/logging/ This is a dependency of votorola/g/security/openid4java.jar. (Actually 1.03 is the dependency, but that version includes Log4J jars that cause compiler warnings, so try this one...) Apache Licence, 2.0 votorola/_/licence/Apache-2.0.txt In executable releases of Votorola, this jar file is relocated to votorola/a/web/base/WEB-INF/lib/. (At least until Tomcat learns to obey JAR extensions, per the manifest Class-Path.) NOTICE The content of the project's "NOTICE" text file (if any) should be placed here, in order to comply with the licence.