https://groups.google.com/forum/message/raw?msg=android-security-updates/Ugvu3fi6RQM/yzJvoTVrIQAJ
https://android.googlesource.com/platform/frameworks/base/+/aaa0fee0d7a8da347a0c47cef5249c70efee209e
http://stackoverflow.com/questions/24625936/getrunningtasks-doesnt-work-in-android-l
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