Migrating a 350k-Line Java/JSP Application to TypeScript in Five Days
A 350,000-line Java/JSP application was migrated to TypeScript in five days using AI agents.
One engineer successfully migrated a 350,000-line Java/JSP application to TypeScript in just five days using AI agents. Traditional estimates suggested a year-long process involving three engineers. The key to this rapid migration was the implementation of a verification mechanism to ensure the new application behaved like the legacy system, allowing for effective parallel processing of tasks.