JLayer on Raspberry Pi not working

Question

I try to use Jlayer in my Java project. When I run it on my Windows PC, all works fine. But when I run it on my Raspberry, it doesn't work/ I dont hear anything. What I tried already:

• I already installed JDK/SE 8
• other sounds, for example, watching a YouTube video, works fine

also I have no errors in the console

thanks