Cannot run properly JavaFX application into OSGI Felix framework

I cannot run properly JavaFX application deployed into Felix OSGI framework. I face the problem described here:

http://stackoverflow.com/questions/15187147/exception-logged-when-using-custom-css-in-javafx-in-felix-osgi

I the css files are not loaded properly. According to the post I can solve this problem by setting the JavaFX application to load text css files instead of binaty bss.

How I can set this value -Dbinary.css=false in a low level into the JavaFX application?