fix javadoc issues

to satisfy Java8 doclint

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1789638 13f79535-47bb-0310-9956-ffa450edef68
18 files changed
tree: ebbe36867ccb7a7d12b3b106cffc5b3f0a1df0be
  1. src/
  2. pom.xml
  3. README.txt