Missing support for Auto Value Annotation Processor

[guw]

Example Git Repo:
https://github.com/salesforce/bazel-jdt-java-toolchain

Cannot import //compiler/third_party/auto_value package.

However, the exports from //compiler/third_party/auto_value:processor seems to be properly wired by the classpath container when used as a dependency. The plug-in does not seems to be executed, though.