Merge "Switch to source build of JavaPoet." am: af086389ff am: 287790cc9c

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2216685

Change-Id: I5bc251c9bd301d900fa3b81edb1c2a79b6631889
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>