Still running legacy Java in production? You're not alone — and modernization doesn't have to be a risky, manual grind. In this series introduction, learn how GitHub Copilot transforms Java application modernization from a slow, error-prone process into a structured, AI-assisted engineering workflow.
The Modernize Java Apps with AI series is a 9-part, hands-on guide to upgrading legacy Java applications using GitHub Copilot. Each episode is 5–7 minutes and covers a focused step in the modernization journey.

Microsoft Developer

A full video course series from Microsoft covering how to use the GitHub Copilot App Modernization extension to upgrade legacy Java applications. The series walks through assessment of legacy codebases (e.g., Java 1.5 Struts monoliths), automated framework upgrades (Java 8 to 21/25, Spring Boot upgrades), database migration from Oracle to PostgreSQL, customizing modernization tasks with developer-controlled constraints, containerization with Docker, deployment to Azure Container Apps, and scaling the workflow via CLI and parallel cloud coding agents. Real demos show the process reducing weeks of manual work to hours, with CVE scanning, test validation, and human-in-the-loop review throughout.

Full Course: Modernize Java apps with AI