Solve problem in Android 4.4.x

[Ana06]

There is a bug in Android 4.4.x and Services and BroadcastReceivers are stopped when the app is closed (closed not pause):
http://www.androidpolice.com/2014/03/07/bug-watch-stopping-apps-on-android-4-4-2-can-silently-kill-related-background-services-a-fix-is-on-the-way

In the previous link the problem is explained with detail and also a solution is proposed:

While BroadcastReceivers and other similar mechanisms seem to be crippled, the AlarmManger can be used to refresh dead services. An alarm can be used to resurrect dead services

So, after creating the Service for sending the tests to the database, an alarm should be programmed to solve this issue.

It is not a critical problem, as in normal cases tests are sent, but there will be rare occasions where data will be lost.