It’s been five years since I last was in Tokyo, so it was about time to be back. Last time, I was there for the JCP EE Face-to-Face meeting as well as JJUG CCC 2019 Spring where I presented the Jakarta MVC specification. This time, at JJUG CCC 2024 Fall (I still haven’t figured out what the CCC stands for, but I am sure someone will educate me…), I gave an overview of Jakarta EE 11. I also added a demo of how to easily integrate AI in a Jakarta EE application using Langchain4j and CDI.

Even 30 million inhabitants, you can still find som quiet places in Tokyo. I had a wonderful morning run in the area around my hotel through small alleys, along rivers and in parks. Tokyo is really a collection of cities and villages all connected together with in impressive network of trains, subways, metros, and buses.

I was only on ground in a little more than 48 hours, but still got to experience a lot of the city. There is something going on all the time. And totally safe. you can (if you want) leave your mobile phone outside on a café table in a crowded area and it will still be there when you come back out after having purchased coffee inside. I don’t know any other major city anywhere in the world you would be able to do that.