fix javadoc errors so java 8 is not complaining

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk/bundles/extensions/models/api@1687185 13f79535-47bb-0310-9956-ffa450edef68
10 files changed
tree: ec2bf88bf853d30d7a251d6f98e4f31bb2cf0e67
  1. src/
  2. README.txt
  3. pom.xml