Token authentication using mehulkatara

[erikmarbad]

I'm following this person's tutorial to implement token usage in JasperReports Server:

https://github.com/mehulkatara/Jasper-Token-based-Authentication/tree/master/With%20encryption%20mechanism

My problem is how to modify the .class file, I leave a post I made on stackoverflow looking for a solution on this.

https://stackoverflow.com/questions/72650201/update-the-class-file-of-an-exported-project-in-eclipse

How did you do to achieve this? I am in the process of putting the jar cipher in the lib folder, but for that I need to modify the above, I appreciate an answer on this.