Merge "Fix: handle null value for packageUsageInfo while deciding unused apps"

        // If the app was active in background during the threshold period and was used

        // by other packages.

        // If packageUseInfo is null, it can be said that the package was not used by other

        // packages.

        boolean isActiveInBackgroundAndUsedByOtherPackages = ((currentTimeInMillis

                - latestPackageUseTimeInMillis)

                < thresholdTimeinMillis)

                && packageUseInfo.isUsedByOtherApps();

                && (packageUseInfo != null && packageUseInfo.isUsedByOtherApps());

        return !isActiveInBackgroundAndUsedByOtherPackages;

    }