In this article, I show how to create a native Windows app out of a small Java app.
The Java app I will use is NetCat (https://github.com/rafalrusin/netcat). You can download precompiled executable, netcat.exe, from https://github.com/rafalrusin/netcat/downloads.
So the first step is to download all dependencies. I will use MinGW, MinGW GCC, jcgo-lib-1_14.tar.gz, jcgo-src-1_14.tar.bz2, classpath-0.93 (http://ftp.gnu.org/gnu/classpath/classpath-0.93.tar.gz) and Java sources for the app with dependent libraries: https://github.com/rafalrusin/netcat, commons cli 1.2 (http://commons.apache.org/cli/download_cli.cgi). You need to put all this in the same directory, so it'll have structure like this:
One feature I would like to see though is to be able to use reference counting instead of full gc. This is because one of the advantages of C over Java is that it doesn't have GC hangs. So then the programmer would have to make sure there's no cycles in orphaned object structure.
Update: Ivan Maidansky, an author of JCGO, has put some interesting comments regarding this article. In particular, he is aware of some apps in Apple Store, which do this kind of translation. Also, reference counting is discouraged due to multithreading issues. These comments can be found here: https://github.com/ivmai/JCGO/issues/2