Merge "Export javac classes" into main am: aaee6ced74

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3363886

Change-Id: I90b6590b32536bf948d7f2bb067dc14ca76b3674
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>