Android U Beta 1 GPL
Fix errorprone warnings that should be errors am: c9512961be am: ee43457366

Original change: https://android-review.googlesource.com/c/platform/external/jsr330/+/2256802

Change-Id: Ide319774ef2b8c006d3dae3986de3c551381fce4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>