Modernizing Java with Cursor and GitLab
AI and CI/CD integration in the transition from Java 8 to Java 21.
1The Complexity of Java Modernization
Transitioning from Java 8 to Java 21 may seem like a single task, but it impacts many areas including build, runtime, dependencies, APIs, and tests. AI and CI/CD tools play a critical role in this process.
2Focused Solutions with Cursor
Cursor, an AI-based coding tool, is effective at solving specific test failures or bounded issues. It reviews code, explains the problem, and runs tests.
3Safe Transition with GitLab
GitLab manages AI workflows with the Duo Agent Platform and certifies the work of coding agents. Processes like CI/CD, security scanning, and code review ensure safety.
4Java HTTP Metrics Collector
The Java HTTP metrics collector from the Tanuki IoT Platform checks HTTP endpoints and records metrics. This provides a visible application boundary for modernization.
5Fixing Errors with Cursor
Cursor analyzes a failed end-to-end test, identifies the root cause, and proposes a fix. When tests pass, it creates a branch and merge request.
6Code Review with GitLab
GitLab Duo Code Review examines changes using the project's Java-specific review instructions. This ensures every merge request meets the same standards.
7CI/CD and Security Scanning
A merge request automatically triggers CI/CD builds and tests. Security scanning and code review ensure the safety of changes.
8Problem Solving with Developer Flow
When code review identifies a concrete issue, it is resolved through the Developer Flow. This ensures that even quickly produced merge requests meet quality standards.
9Establishing a Behavioral Baseline
The fix made with Cursor addresses a real bug without mixing it with runtime migration. This establishes a behavioral baseline and facilitates the modernization process.
10HTTP Connection Management with Java 21
HTTP connection management is modernized with Java 21. This improves performance and allows leveraging new features.
11Adding Project Context
Adding project context is crucial in the modernization process. It allows Cursor to move quickly while maintaining safety.
12The Importance of Modernization
Java modernization improves code quality and allows leveraging new technologies. With AI and CI/CD tools, this process becomes safer and more effective.
Original article: GitLab — Java Modernizasyonunda Cursor ve GitLab Kullanımı