use junit-core which can run without commons.json, adjust validation model

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1790279 13f79535-47bb-0310-9956-ffa450edef68
3 files changed
tree: ac54ec351401a331087eb6fa87669e0c670c6bac
  1. src/
  2. pom.xml