am 52e7d3d9: Bulletproof leak dump against null hash entries

Merge commit '52e7d3d91ab6a5bab77c5dfb1ed47381fd52f9ba' into gingerbread-plus-aosp

* commit '52e7d3d91ab6a5bab77c5dfb1ed47381fd52f9ba':
  Bulletproof leak dump against null hash entries