The JDK jars contain files with symlinks in them, this is not properly supported by for example commons-compress. Also file permissions are not working, so files can't be executed.
Therefor the choice has been made to just use os tools like unzip and tar on osx and linux. And then bundle this software on windows.
The files generated by the agent in native-image are very os dependent, so we need a set for every os, the best solution
would be to set the agentDir property in the gluon plugin, however does not work. So we copy the files manually. First
in the validate phase and then we need to put it back manually.
JavaFX has a Platform.exit method that will terminate the application. This brings some issues on at lease OSX with
the shutdown hook, as that will not fire. Therefore, we close the application by calling close on the main stage. This
is implemented in MainScreenController.exitApplication()