am 1559f1c5: am 217d4568: am 8100b3fa: am 4439dcdc: am af75c17b: Fix issue #23270878: NPE in UsageStatsService while running UserManagementTest

* commit '1559f1c5a0a4db23b8338b8c4792dcb351c541f8':
  Fix issue #23270878: NPE in UsageStatsService while running UserManagementTest