Fix unused_deps' params file handling (#420)
Fix unused_deps' params file handling (#420)

This works around the following changes to params files:
https://groups.google.com/d/topic/bazel-discuss/oMguVWL-Ckg/discussion

The fix uses an apsect to extra the argument list of JavaBuilder
actions, instead of relying on params files being available at
well-known locations.
bazelbuild/buildtools,bazelbuild/buildtools,bazelbuild/buildtools,bazelbuild/buildtools,bazelbuild/buildtools