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This idea of using #AI to translate #COBOL code into #Java has one big problem.

The goal is reasonable: ancient COBOL code is effectively a black box, hard to modify or extend and even harder to debug.

But who is validating the Java output? A big part of the problem is how difficult it is to understand the business logic that the COBOL was implementing — but all that analysis work is still required to evaluate the correctness of the Java, plus Java debugging!

https://techcrunch.com/2023/08/22/ibm-taps-ai-to-translate-cobol-code-to-java/