Upgrade Java version to 21 on iteration 2

[hu-jin-aws]

Java Version Upgrade - Code Transformation Summary 🚀

Executive Summary 📋

A successful automated code transformation was performed using OPENREWRITE to upgrade the Java application's dependencies and framework versions. The transformation showed high confidence scores with minimal risk, primarily focusing on test framework modernization and dependency updates.

Next Steps ⏭️

• ✅ Review the updated test files for any manual adjustments needed
• ✅ Perform integration testing with the new dependencies
• ✅ Deploy to staging environment for validation
• ✅ Schedule production deployment

Key Metrics 📊

• 🔧 Files Modified: 8
• 📝 Lines Changed: 123
• 📦 Dependencies Modified: 9
• ⏱️ Time Saved: 47 minutes
• ⚡ Transform Duration: 7 minutes

Build Summary 🏗️

• Status: ✅ SUCCESS
• Confidence Level: ⭐ HIGH
• Transform Engine: OPENREWRITE

Dependencies Changes 📚

Removed Dependencies 🗑️

• junit:junit (v4.13.1)
• org.mockito:mockito-all (v1.10.19)
• javax.validation:validation-api (v2.0.1.Final)

Added Dependencies ➕

• org.mockito:mockito-core (LATEST)
• jakarta.validation:jakarta.validation-api (LATEST)

Upgraded Dependencies ⬆️

• org.apache.logging.log4j:log4j-api (2.13.3 → LATEST)
• org.apache.logging.log4j:log4j-core (2.13.3 → LATEST)
• org.springframework.boot:spring-boot-starter-parent (2.0.5.RELEASE → 3.0.13)
• org.apache.maven.plugins:maven-compiler-plugin (3.8.1 → 3.14.0)

Modified Files 📂

1. pom.xml
2. MoviesController.java
3. Encoder.java
4. Math.java
5. MathTest.java
6. MockTest.java
7. MovieTest.java
8. MoviesControllerTest.java

All files are located within the appropriate source and test directories under the com.amazonaws.samples.appconfig package structure.