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Using Amazon Q Developer CLI for custom Java application transformations

DevOps & Developer Productivity Blog



This article details how to use Amazon Q Developer CLI for custom Java application transformations, focusing on modernizing Java applications with automated code upgrades.

  • Demonstrates transforming a Java 1.8 microservice to Java 17 using Amazon Q Developer CLI
  • Provides a step-by-step guide to configuring and executing code transformations
  • Introduces custom transformation rules using ast-grep for pre and post-transformation actions
  • Highlights key transformation capabilities like: • Removing unused imports and variables • Upgrading internal dependencies • Replacing System.out.println with proper logging • Updating deprecated methods
  • Offers troubleshooting tips and best practices for Java application modernization

The article emphasizes how Amazon Q Developer CLI enables developers to automate Java application upgrades, reduce manual errors, and efficiently modernize codebases.



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