I've seen a successful effort to turn COBOL into Java, from 2018: Phase 1 (18 months): COBOL-to-Java code automated refactoring to x86/RHEL platform. This was

I've seen a successful effort to turn COBOL into Java, from 2018: Phase 1 (18 months): COBOL-to-Java code automated refactoring to x86/RHEL platform. This was the most complex and risky phase. Phase 2 (12 months): Code advanced refactoring to remove COBOL design overtones Phase 3 (3 months): Infrastructure moved to AWS GovCloud (US) Article: https://aws.amazon.com/blogs/apn/automated-refactoring-of-a-u-s-department-of-defense-mainframe-to-aws/ https://aws.amazon.com/blogs/apn/automated-refactoring-of-a-... Discussion here: https://news.ycombinator.com/item?id=19839563 https://news.ycombinator.com/item?id=19839563