Handle null stacks gracefully.

Bug: 10928395
Change-Id: Ie7c3f7e0eb068ece0cf678a5d6346f18a413856b
3 files changed
tree: d0d04d1608ce9a6e07702c5135f15075303350e7
  1. res/
  2. src/
  3. tests/
  4. Android.mk
  5. AndroidManifest.xml