Summary

This PR adds ARM64 architecture support to the GitHub Actions build matrix to ensure the Application Insights Java Agent works correctly on ARM64 platforms.

Changes

🔧 Matrix Expansion

Added ARM64 runners to the build matrix in.github/workflows/build-common.yml:

• ubuntu-latest-arm64 - Linux ARM64 runner
• windows-latest-arm64 - Windows ARM64 runner

🔄 Condition Update

Updated the Windows-specific condition from:

if:matrix.os == 'windows-2022'

to:

if:startsWith(matrix.os, 'windows')

This ensures the "Support long paths" step runs on bothwindows-2022 andwindows-latest-arm64 runners.

Impact

Build Matrix Expansion

• Before: 10 jobs (2 OS × 5 Java versions × 1 VM)
• After: 20 jobs (4 OS × 5 Java versions × 1 VM)

Platform Coverage

The agent will now be tested on:

• ✅ Windows x64 (windows-2022)
• ✅ Linux x64 (ubuntu-latest)
• ✅Linux ARM64 (ubuntu-latest-arm64) 🆕
• ✅Windows ARM64 (windows-latest-arm64) 🆕

Java Version Coverage

All Java versions (8, 11, 17, 21, 23) will be tested on ARM64 platforms.

Automatic Inheritance

Other workflows that usebuild-common.yml automatically inherit ARM64 support:

• build.yml (PR and main branch builds)
• build-daily.yml (daily builds)
• build-daily-no-build-cache.yml (daily builds without cache)

Testing

• YAML syntax validated
• Matrix configuration verified
• Windows condition logic tested for all runners
• No breaking changes to existing workflows

This ensures the Application Insights Java Agent maintains compatibility and performance across both x64 and ARM64 architectures on Windows and Linux platforms.

💬 Share your feedback on Copilot coding agent for the chance to win a $200 gift card! Clickhere to start the survey.