What kind of pitfals exist for the Android APK signing?

Question

Disclaimer: I know the basics of signing an APKs and I have a problem with only one of my projects and only when signing with Microsoft Windows as the OS.

Answer 1

The solution from Baqueta works also for me.

Use these arguments in the keytool:

-sigalg MD5withRSA -keyalg RSA -keysize 1024 

I am still using there in jarsigner:

-sigalg MD5withRSA -digestalg SHA1

Thank you, the APK compiled and installed on a device using Java 7, finally!