# JAVA 21.x on Ubuntu 22.04+

This article provides the steps to install Java 21 on an Ubuntu machine. The procedure includes updating system packages, installing the required Java Development Kit (JDK), and verifying the installation. This setup is required for applications and connectors that depend on Java runtime support within the OvalEdge platform.

## Prerequisites

Ensure the following requirements are met before proceeding:
\\

* **Operating System**: Ubuntu 22.04 or later
* **Privileges**: A user account with `sudo` privileges or root access to the machine
* **Network**: An active internet connection for accessing official package repositories

## Installation Steps

1. Update System Packages
   1. Update the package repository and upgrade existing packages to the latest versions.

      ```bash
      sudo apt update
      sudo apt upgrade -y
      ```
2. Install Java 21
   1. Install OpenJDK 21 from the default Ubuntu repositories.

      ```bash
      sudo apt install openjdk-21-jdk -y
      ```
3. Verify Installation
   1. Verify that Java is installed successfully by checking the version.

      ```bash
      java -version
      ```
   2. Expected Output:

      ```bash
      openjdk version "21.x.x"
      ```

      <figure><img src="/files/kUE7kU9WHZKAUzpxppzS" alt=""><figcaption></figcaption></figure>

***

Copyright © 2026, OvalEdge LLC, Peachtree Corners, GA, USA.


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