All maven assemblies must use <useTransitiveFiltering>true</> for every <dependencySet> --------------------------------------------------------------------------------------- Key: DROOLS-850 URL: https://issues.jboss.org/browse/DROOLS-850 Project: Drools Issue Type: Task Reporter: Geoffrey De Smet Assignee: Petr Široký Priority: Minor When the assemblies were originally written, this option wasn't available yet. Because don't use it, we have been doing <excludes> for transitive dependencies, which have being going stale/incorrect as we've been upgrading dependency versions. it's a mess. The only sane thing to do is to use this option everywhere. As they admit, it should be the default but they couldn't: "<useTransitiveFiltering> Determines whether the include/exclude patterns in this dependency set will be applied to the transitive path of a given artifact. If true, and the current artifact is a transitive dependency brought in by another artifact which matches an inclusion or exclusion pattern, then the current artifact has the same inclusion/exclusion logic applied to it as well. By default, this value is false, in order to preserve backward compatibility with version 2.1. This means that includes/excludes only apply directly to the current artifact, and not to the transitive set of artifacts which brought it in. (Since 2.2-beta-1) " See https://maven.apache.org/plugins/maven-assembly-plugin/assembly.html#clas...