@Override
 public HashSet<String> updateAndGetActiveSessionCache() {
   HashSet<String> activePackages = new HashSet<String>();
   UserHandleCompat user = UserHandleCompat.myUserHandle();
   for (SessionInfo info : mInstaller.getAllSessions()) {
     addSessionInfoToCahce(info, user);
     if (info.getAppPackageName() != null) {
       activePackages.add(info.getAppPackageName());
     }
   }
   return activePackages;
 }