Copying the comment I made on the other post on c/programming:

Using AI to refractor COBOL code sounds interesting to me, as the article highlights this may make it easier for COBOL code to be reused by making the code more modular and having it be called by other languages (e.g. having a Java API which calls COBOL code). But of course as other people in this thread have mentioned there are huge risks to rewriting mission-critical code.

I’m not convinced about rewriting COBOL code as Java. COBOL is very good and efficient at performing the tasks that businesses need, such as extremely large quantities of precise numerical calculations and transactions. Java doesn’t excel at this.

Edit: Adding the Archive Link.