https://doismiu.blog/tags/spring/Recent content in Spring on doismiu - dispatches from the infernal archiveHugoen-usFri, 12 Dec 2025 00:00:00 +0100https://doismiu.blog/posts/the-kobayashi-maru-of-java/Fri, 12 Dec 2025 00:00:00 +0100https://doismiu.blog/posts/the-kobayashi-maru-of-java/<p>For those who skipped the Starfleet Academy lectures, the <a href="https://en.wikipedia.org/wiki/Kobayashi_Maru"><strong>Kobayashi Maru</strong></a> is a training exercise designed as a &ldquo;no-win scenario.&rdquo; The goal isn&rsquo;t to win, it&rsquo;s to see how you handle inevitable failure. In the world of Backend Engineering, our no-win scenario is the <strong>Unhandled Exception</strong>.</p> <p>You spend weeks architecting a beautiful, clean service. You use Records, you optimize your SQL queries, you apply SOLID principles. And then, on production day, a user sends a malformed JSON, and your API vomits a 50-line Stack Trace directly into their browser console. It&rsquo;s ugly, it&rsquo;s unprofessional, and it exposes your internal logic to the world.</p>