Software⏱️ 2 min read📅 2026-06-03

How to Fix: Maven dependencies are failing with a 501 error

Maven dependencies failing with 501 error due to HTTP request. Switch to HTTPS.

Quick Answer: Update Maven settings to use HTTPS, or configure Jenkins to use a proxy that supports HTTPS.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. 🔧 Proven Troubleshooting Steps
  3. 💡 Conclusion

Maven build jobs running in Jenkins are failing with a 501 error due to the inability to pull dependencies from Maven Central. The issue arises when the requests made by Maven to download dependencies from Maven Central use HTTP instead of HTTPS.

🛑 Root Causes of the Error

  • Insufficient or outdated configuration in Jenkins
  • Incompatible Maven version with HTTPS support

🔧 Proven Troubleshooting Steps

Method 1: Update Jenkins Configuration

  1. Step 1: Navigate to Jenkins Configuration and update the Maven settings.

Method 2: Update Maven Version

  1. Step 1: Use the latest version of Maven that supports HTTPS.

💡 Conclusion

By following these steps, you can resolve the 501 error and successfully pull dependencies from Maven Central using HTTPS.

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