Merge branch 'stable-3.3'

* stable-3.3:
  Use volatile and AtomicIntegers to be thread safe

Change-Id: I9c9f0c91414414bebe5a9530cca736e1be4a7ad7
tree: f3af5e579fbc70aba30ec60caf08949ee08c1de6
  1. .settings/
  2. src/
  3. .gitignore
  4. .mailmap
  5. BUILD
  6. LICENSE