General information

JavaZone 101 - The Who, What and Where

JavaZone – the biggest European community-driven conference for modern developers will be 22 years old in 2023! Don’t miss out on two days of inspiring tech talks, a day of hands-on sessions, mingling, and a great party!

JavaZone is organized by javaBin, the Norwegian Java User Group. Our goal is to organize a community-driven conference for Java developers where they can learn new things, share knowledge, and socialize.

We have been organizing JavaZone since 2001 and have been excited to watch the event grow bigger and better every year.

We would not be what we are today without YOU! Thank you for your support and contributions over the years. Don’t procrastinate! Join your fellow Java developers at JavaZone on September 6th-7th, 2023!

A lot of people inside the conference main area

Claiming your ticket

As the previous years we are all sold out . If you are one of the lucky to be a ticket holder you claim your badge when arriving at Oslo Spektrum. (You can change the name on the ticket until you arrive and get your badge at Oslo Spektrum, but after that the ticket is personal and non transferable).

If you are attending a workshop on Tuesday September 5th you pick up your badge when you arrive at the workshop.

On Tuesday September 5th from 16:00 until 18:00 you can pick up your badge at Oslo Spektrum - entrance 3 (and thus walk straight past the queue on Wednesday)

Two conference days

Two days full of talks from renowned Norwegian and international speakers, in varying formats and categories. You don´t want to miss our amazing lineup.

Our doors open at 8:00 on Wednesday September 6th . At 8:30, you can expect our unique opening show taking place in the expo. The talks will start at 9:00 both days.

The last talk will be finished at 18:00 on Thursday September 7th.

An afterparty to remember

After a long day of unique learning experiences, it feels good to chill out with some good food and drink. JavaZone parties are legendary - and we can promise something amazing for our afterparty this year as well! Scroll down for more information about AweZone!

Hands-on workshops

Do you prefer practical tasks more than theory? Take part in one of our great workshops and boost your knowledge and skills. The workshops are included in your ticket, but we have a limited number of seat so you need to register.. Workshop registrations opens on Monday August 21th at 12:00. More info at

...And a whole lotta love ❤️

You will meet lots of interesting people at JavaZone! Grab your coffee (or tea) and mingle away!

The JavaZone Program

The full program is available at

Lightning talks

Lightning talks are either 10 or 20 minutes long and often give a quick introduction to a concept. This is a great way to get a sneak peek at something new.


Presentations at JavaZone have a length of 45 or 60 minutes and will give you a deeper understanding of a concept than lightning talks.

AweZone: Celebrating the community

AweZone is JavaZone's traditional party which takes place on Wednesday evening.

The party offers a great chance to catch up with old friends, meet new ones, and also experience a great line-up of entertainment!

On Wednesday, we will be starting the pre-party at Oslo Spektrum at 19:20. At 20:00, we will be leaving Oslo Spektrum together and moving towards Youngstorget, and the best geeky super-party ever – AweZone! We will be spending the evening at Tukthuset, Himkok, and Kulturhuset.

You will be able to enjoy the drinks, stay in the chill-out areas, participate in activities like Shuffleboard, Ping Pong, or Foosball, as well as mingle with the conference organizers, speakers, other participants, and our partners!

Oh, and one more thing! We will be serving good food in the evening as well. Some drinks are on us, some will be on our partners!

A few very important principles

JavaZone is a 100% community-organized conference created by javaBin. The program is chosen by our independent program committee, and they operate under the principle that no-one is paid to hold a presentation, and likewise, that no-one can pay us to get their presentation accepted.

We as organizers strive to create the best possible learning experience for all our speakers and participants, and we expect you to do the same. Everyone is welcome at JavaZone, but we do require that you treat your fellow conference participants with respect. We reserve the right to take any action necessary to make sure this principle is upheld. For more details, see our Code of Conduct that applies to all events organized by javaBin.

Should any unwanted event occur, we‘re here to help:

Before the conference

You can contact us by email: (this goes to a small group of people, the core organizers of JavaZone), or (this goes to the javaBin board).

During the conference

Ask at the info stand, and we‘ll be in touch. Contact information will also be available at the info stand.


Read more about food served at JavaZone.

A lot of donuts on tables with people in the background

Sustainable waste management and recycling at JavaZone

In an era where environmental consciousness is at the forefront, responsible waste management practices have become imperative. At Oslo Spektrum, an innovative partnership with Oslo Municipality and Franzefoss ensures that waste is not just disposed of, but actively sorted and recycled, promoting a greener future.

Upon entering JavaZone, attendees may not be immediately aware of the meticulous waste management system that operates behind the scenes. Once waste is discarded, the process of responsible disposal begins. A comprehensive sorting mechanism is in place, designed to separate recyclables from non-recyclable materials.

One notable aspect of this waste management initiative is the sorting and collection of beverage containers for deposit refund, known as "pant" in Norway. The bottles and cans are systematically collected, sorted, and sent for recycling, embodying the ethos of resource efficiency.

Considerable portions of waste generated during JavaZone are earmarked for recycling. Through a blend of advanced waste separation technology and dedicated staff, materials like paper, plastic, glass, and metal are carefully segregated. The residual waste is further sorted at the Franzefoss plant in Haraldsrud and the remaining 70% is ground up and converted into FOB (refined waste fuel). Franzefoss has an agreement with Norcem for the delivery of FOB and this is used by Norcem as a high-value fuel for cement production. The food waste/wet organic waste delivered is used for biogas and fertilizer on grain fields. This not only reduces the environmental impact of JavaZone but also sets an example for attendees and the wider community.


Do not hesitate to contact us if you have any questions. Contact us at and we’ll try our best to give you an answer.

Download the JavaZone app on the App StoreDownload the JavaZone app on the Google Play

We are looking forward to seeing you at JavaZone 2023!