While developing applications it's annoying to see thousands errors in sources (example: PackageManager uses the SystemApi annotation but its only in sources and not in android.jar (classes) )
Look: 
And this is my android.jar:
As you can see, the entire "com" folder is missing! But in the sources zip, its there. So where can i find a complete android.jar?
Sorry for the low quality question i don't know an other way to explain my problem
Ok guys i found this website https://jar-download.com/artifacts/com.rover12421.android.hide/framework/Q_10.0_29/source-code
From there i downloaded the hidden apis and its working perfectly. i do not delete the question because someone else might have the same problem but find this