This sounds pretty weird considering that this is maybe the most USED permission of all (android doc just tells an apk must declare this permission "In order to perform network operation"...)
This weird result depends on the fact that in axplorer mapping files there aren't mappings of famous "internet using" methods (java.net.HttpURLConnection, java.net.HttpsUrlConnection, java.net.Socket etc...) with android.permission.INTERNET permission.
I also knew that axplorer project replaced pscout project, so I took a look at pscout's mapping files either and found that in pscout's mapping files of android versions from Jelly Bean to Froyo there actually ARE mappings of java.net.HttpURLConnection, java.net.Socket etc.. methods with the permission, but for 4.11-5.11 android version, there is no mapping with these methods, and the mapping files become very similar to axplorer mapping files of android more recent versions.
Someone can help me find out why I'm seeing this strange case in permissions mappings?
I need to evaluate permissions effectively usage, but a "zero usage" of android.permission.INTERNET has really to be false... Someone can help me with that? Maybe there's something wrong in my idea?