Merge "Nullability check for select module." am: e2abfb3ddf am: ed3fc73ad1 am: df11a31153 am: 3ce75e1f66

Original change: https://android-review.googlesource.com/c/platform/bionic/+/2550050

Change-Id: Ic0613db7707a1b58ea7414bc673b77b620c60cf3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>