Unable to pin CourseGenerator to Windows taskbar

[FJBDev]

After launching CourseGenerator and right clicking on the CG icon, a user can't "pin" CG to the taskbar (see image)

here is what should be available in the contextual menu instead :

I have tried this but it didn't seem to work : https://stackoverflow.com/questions/2820983/how-do-i-set-appusermodelid-on-shortcut

[patrovite]

It seem that it's more a java problem than an application problem.