Initial import of rules_java. am: 4ba159a9c4

Original change: https://android-review.googlesource.com/c/platform/external/bazelbuild-rules_java/+/2637269

Change-Id: Ifbd3456f1caa6c0ae1a0eeb8f2d33a1e1504c0e1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>