Ax 2012 - how to use method from WMSJournalCheckPostReception

Hi,

I need to use whole logic from method findNewLocation from WMSJournalCheckPostReception class. This method calls when you choose Check/Post journal. This method is private and I cant do only change private to public of course. 

Is there any way how can I use it, please?

Ax 2012 R2