☕ Configure Java Development

Last updated: March 19, 2026

Complete guide to installing JDK 21, configuring JAVA_HOME, setting up Maven/Gradle, and troubleshooting Java development

Overview

Set up a complete Java development environment on Windows with JDK 21, build tools like Maven and Gradle, IDE configuration, and troubleshooting common issues.

What this helps with

What to expect: Medium difficulty • usually about 30-45 minutes.

This is one of 28 Developer Tools & Programming fixes in the WindowsHelper library. The full step-by-step fix lives in the WindowsHelper app.

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