[jboss-as7-dev] Reminder about pom.xml exclusions

Just a reminder that when you add a new Maven dependency to AS7, before submitting the pull request, be SURE to thoroughly audit the output of "mvn dependency:tree" and make sure that all transitive dependencies are excluded in the main "pom.xml" - even if they look harmless! If you don't, we can run into a problem where different versions of Maven or different JDKs give different dependency graphs, resulting in builds that work for some people but not others, which sucks for everyone involved. If there is a transitive dependency that you need, then add it in as a first-level dependency in the main pom.xml and specify the version directly. I think this is what is underlying https://issues.jboss.org/browse/AS7-4782 and I'm sure others will run into similar issues as well. -- - DML