What we're about

The Atlanta Java Users Group (AJUG) is organized by Java Developers for Java Developers in order to:

Provide a forum for exchanging information and for brainstorming with other developers on how to successfully implement new Java solutions.

Deliver monthly technical presentations on the latest Java/JVM technologies.

Support the needs of both newbies and experts through related Study Groups targeted at Java Certification and Java-OO architectural issues.

Promote the advantages of Java as a development and deployment environment to the business and educational communities.

While our focus is around Java and the JVM, we also cover a wide variety of other related topics such as Agile development methodologies, mobile and client-side software development frameworks and tools.

Our website: http://www.ajug.org

How to join?

There are currently no dues or other formal requirements for joining AJUG. Simply join this Meetup group and start attending our meetings.

About Our Meetings

AJUG meets generally on the third Tuesday of each month from 7:00 pm to 9:00 pm in the Perimeter area:

Roam Interactive Workspaces
1155 Mount Vernon Highway, Atlanta, GA

Our meetings emphasize high-quality technical content and we encourage interaction among attendees.

From 5:30 pm to 7:00 pm, we usually have a pre-meeting hangout at a local Pub before the meeting starts officially at 7:00 PM:

the Royal Oak Pub next to the venue, so come early, hang out, have some food & drink, then head over to the venue for the main event!

Annual DevNexus Developer Conference

The Atlanta Java Users Group also organizes the annual DevNexus developer conference. For more information see: http://www.devnexus.com

Upcoming events (2)

HotSpot vs OpenJ9: which one to choose to cut cloud bills

HotSpot vs OpenJ9: which one to choose to cut cloud bills

Which Java Virtual Machine to choose? HotSpot is a reference implementation now developed within the OpenJDK project. OpenJ9 is another JVM originally developed by IBM and later contributed to the Eclipse Foundation. OpenJ9 claims great performance based on the DayTrader7 benchmark application study, where three fine-tuned OpenJ9 configurations are compared to default HotSpot.

Let’s check whether HotSpot can be configured simply to show comparable performance results. We will look into experimental setup, reasonable tunings, and results for startup, footprint, latency, and throughput using different hardware and operating systems. This is how we maximize the efficiency of deployments in practice.


Georgia World Congress Center


Organized by the Atlanta Java Users Group, Devnexus is the longest-running and largest Java/Java Platform Conference in the USA. Now in its 18th year, we are back in person for Devnexus 2023 at Atlanta's Georgia World Congress Center, April 4-6. Devnexus is a unique opportunity to level up your teams' skills without having to travel out of state.

There are four world-class full-day workshops on April 4 (sold separately) , followed by two days of excellent sessions in twelve simultaneous tracks (Agile, Architecture, Cloud Infrastructure, Cloud Tech, Core Java, Frameworks, Java Platform, Practices, and other tech, Red Hat DevNation, Security, Tools and Techniques, Web) presented by community experts, Java Champions, and Internationally recognized speakers.

Your pass to the two-day event (April 5-6) includes Breakfast, Lunch, swag, and the awesome Quarkus Rocks After Party with live music. You can see the full program and lineup of sponsors, sessions, and speakers at devenexus.com

If you would like to add one of the workshops on April 4. Please email us, and we can send you a link to do this

Past events (154)

Bootiful Spring Boot 3