If they want to decommission that program, you shouldn't write a new program interacting with it. Otherwise, you're creating a new dependency, making it even harder to decommission the program.
Comment on Re^5: Interact external Program's child.
Hello Java-Fan
Thank you for your advise. I have talked with some coworkers and we came to the same conclusion as you have. We will build our own Framework for that Task by ourself (in Perl).