Merge branch 'stable-2.15'

* stable-2.15:
  Format all Java files with google-java-format 1.6

Change-Id: Id830ae17cd4669f150d92ec16218e25ebc4807c5
tree: 1c7885eb861a588d90ca8fce071ba4fbc02ed88f
  1. BUILD
  2. external_plugin_deps.bzl
  3. pom.xml
  4. src/