The current build system (Makefile) uses a very old java SDK that is no longer available on modern platforms. There is a community supported project HelloSTK2 (maintained by Merlin Chlosta, see also ) that uses not only a comfortable ANT based approach. It also uses more modern Java SDKs which are automatically downloaded using .gitmodules. All this makes it very comfortable to use and also lowers the barrier for beginners. Let's take this approach as an example and use it in our hello-stk.git as well.  https://github.com/mrlnc/HelloSTK2.git Related: OS#6069 Change-Id: Ic1828b7ccaf3bf953c0f4889fa1c3f21b80a1b73
Hello World SIM Toolkit Program
This is the source code to a very simple Hello World Java SIM Toolkit application. You typically install it using the tools from the http://git.osmocom.org/sim/sim-tools/ repository.
For more information see https://osmocom.org/projects/cellular-infrastructure/wiki/Shadysimpy