Run Java applications on Google Axion processors
Introduction
Create an Arm-based VM instance with Google Axion CPU
Install the JDK and build an application
Test performance and optimize
Review
Next Steps

  Log an issue

  Fork and edit

  Discuss on Discord

Install Java

Now that you have an Axion instance running Ubuntu 24.04, you can SSH into it via the Google Cloud console:

Image Alt Text:click the console button to SSH to the machine

This will bring up a separate window with a shell connected to your instance.

This Ubuntu image does not include Java, so you need to install it. First update apt:

    

        
        
            sudo apt update

Then install the default Java Runtime Environment:

    

        
        
            sudo apt install default-jre

Check to ensure that the JRE is properly installed:

    

        
        
            java -version

Your output will look like this:

    

        
        
            openjdk version "21.0.3" 2024-04-16
OpenJDK Runtime Environment (build 21.0.3+9-Ubuntu-1ubuntu1)
OpenJDK 64-Bit Server VM (build 21.0.3+9-Ubuntu-1ubuntu1, mixed mode, sharing)

Once the JRE is installed, you will want to install the default JDK:

    

        
        
            sudo apt install default-jdk

After completion of the JDK installation, check the version:

    

        
        
            javac -version

The output will look like this:

    

        
        
            javac 21.0.3
Note

It’s important to ensure that your version of OpenJDK is at least 11.0.9. There is a large performance gap between OpenJDK-11.0.8 and OpenJDK 11.0.9. A patch added in 11.0.9 reduces false-sharing cache contention. For more information you can view patch JDK-8248214 .

Deploy Spring Petclinic

spring-petclinic is an example Spring-based application that is simple to build and run.

First, download the repo:

    

        
        
            git clone https://github.com/spring-projects/spring-petclinic.git

Next, enter the cloned directory and run the build script:

    

        
        
            cd spring-petclinic
./mvnw package

This will build the jar file. Once built, you can test the web server by running the jar:

    

        
        
            java -jar target/*.jar

Once the application is running, you can open the web app in a web browser by visiting

    

        
        
            http://<EXTERNAL_IP>:8080

Where <EXTERNAL_IP> is the value you obtained in the last section .

Back
Next