Show HN: Oracle Forms to Java: A Two-Week AI Migration Experiment (vaadin.com)

In a recent experiment, a consultant at Vaadin explored how effectively AI coding agent Claude Code could assist in migrating an Oracle Forms application to modern Java frameworks like Vaadin and Spring Boot. Over two weeks, he aimed to automate significant portions of the manual migration process, defining essential architectural decisions upfront rather than during coding. The methodology involved creating a comprehensive ruleset for the migration, extracting a detailed inventory of the Oracle Forms application, and implementing the migration step-by-step. The experiment focused on an ORDERS form, demonstrating how Claude understood the differences in validation and user experience between Oracle Forms and web UIs, offering insights on how to deal with behavioral mismatches. This experiment is significant for the AI/ML community as it illustrates the potential for AI systems to comprehend and facilitate complex development tasks, particularly in legacy system migrations. While Claude was adept at generating code and offering migration suggestions, the consultant emphasized the importance of human oversight in decision-making to ensure that the migration aligns with user needs and expectations. The venture sheds light on the evolving role of AI in software development and migration, suggesting a future where AI can effectively contribute to significant coding tasks while still requiring human expertise for nuanced architectural decisions. The experiment's findings, including the code and architectural rules, have been made available on GitHub for others facing similar migration challenges.