Tracing into Menu Selections

I am trying to debug into menu selections, specifically why a particular module is getting a ‘Invalid VASSAL Module’ exception. Where might I trace into this code being executed?

Thanks
Nat

Thus spake NatRapsEno:

I am trying to debug into menu selections, specifically why a particular
module is getting a ‘Invalid VASSAL Module’ exception. Where might I
trace into this code being executed?

The display of that error is triggered from
VASSAL.launch.AbstractLaunchAction.


J.