Fix ReturnMissingNullable bug pattern flagged by error prone

For more details see: [1].

[1] https://errorprone.info/bugpattern/ReturnMissingNullable
Change-Id: Ice845315af628157b805792a90e38728a8c0d747
1 file changed
tree: 360e3324b93f2c4d91c6aec48cfd10d1ec9a4862
  1. .settings/
  2. src/
  3. .gitignore
  4. BUILD
  5. LICENSE