No error,
After "successful" packaging, the bundle folder is empty
Edit:
With javapackager 10 the exe file is in the root of B4JPackager not in B4JPackager/bundles.
The installer works, but nothing happens if you try to start the application in Windows.
Find the installed jar file and run it from the command line with java -jar. Maybe there is an error in your program (usually happens when you try to write to File.DirApp).
WARNING: Illegal reflective access by anywheresoftware.b4j.object.JavaObject (file:/C:/Program%20Files/JeeLight/app/JeeLight.jar) to method javafx.scene.image.WritableImage$2.setPixels(int,int,int,int,javafx.scene.image.PixelFormat,byte[],int,int)