correct scala dependencies

git-svn-id: https://svn.apache.org/repos/asf/tomee/tomee/trunk@1616318 13f79535-47bb-0310-9956-ffa450edef68
fixing polling sample

git-svn-id: https://svn.apache.org/repos/asf/tomee/tomee/trunk@1616328 13f79535-47bb-0310-9956-ffa450edef68