should use a LinkedHashSet, but that isn't part of 1.3. So we'll just use an ArrayList and create a new list each time this goal is invoked which will prevent duplicates from being added. git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@112790 13f79535-47bb-0310-9956-ffa450edef68