am dc1f0858: am 9902196f: Fix npe in getCacheTotalSize.

Merge commit 'dc1f08586eadc3a3dbbdf22b520ba1065b2032f8'

* commit 'dc1f08586eadc3a3dbbdf22b520ba1065b2032f8':
  Fix npe in getCacheTotalSize.