Track Overview

Evolving Java

The Java is Dead meme continues in 2020, 10 years after it started! Unsurprisingly enough, the Java ecosystem just keeps evolving, with new innovations that continue to drive large enterprises, cloud infrastructure and has Trillion's of dollars worth of commercial activity run on it each year. This year at QCon we look at the important innovations in the Java space that will directly impact you in the short term future.

There has been a number of innovations around running Java in a Cloud Native environment. Quarkus is a leading light here, allowing you to build and deploy native image applications that are Java-compatible. Deploying Java applications efficiently on Docker was a struggle 5 years ago, but now Java is a leader in language support for containers and we look at the latest work to optimize this even further. The global migration from Java 8 to 11 is finally taking place, and major enterprises are now planning their move, we bring you a field report by one of the world's most exciting digital banks! Looking a little further forward we finally have a working implementation of Records and Sealed Types that you can use to build more efficient data structures. Lastly, for the bold, there's a new Java compiler in town called Graal that some claim has massive performance benefits. But how does Graal really execute code, as compared to Hotspot today, that question is answered in this track before you take the plunge!"

From this track

SESSION + Live Q&A Java 11

Live Coding 12-Factor App

Planning to build microservices? The best practice of building a first-class Cloud Native Microservice is to follow 12-Factor app.But how do you fulfil the 12-factor app rules, e.g. how do you externalise the configuration, fault tolerance, etc? Come to this session to watch the live...

Emily Jiang

STSM, Liberty Microservice Architect and Advocate @IBM

SESSION + Live Q&A Java 11

Records and Sealed Types - Coming Soon to a JVM Near You!

OpenJDK's Project Amber has been delivering small improvements for a while now. With the release of Java 14, a group of major new features starts to arrive.The first is Records - a new syntax for declaring a class that "just holds data" and fills the same role that tuples do in...

Ben Evans

Java Champion, Author of "Java in a Nutshell"

SESSION + Live Q&A London

A Year With Java 11 in Production!

At the time of QCon London, Revolut will have been running Java 11 in production for over a year!As with all JDK upgrades, this didn't happen overnight - let me tell you a little more about our experience. You will hear about our journey, what surprised us, and what we found better than...

Andrzej Grzesik

Platform @RevolutApp

SESSION + Live Q&A London

How the HotSpot and Graal JVMs execute Java Code

When Java was released in 1995 it was slow, a reputation it has carried for many years… Today Java can give performance that is comparable to C++ and can emit instructions that are more optimal than code which is statically compiled. But how? This talk will explore practical examples...

James Gough

Co-author of Optimizing Java

SESSION + Live Q&A London

Java in Containers - Part Deux

Containers are everywhere in modern cloud workloads, but that doesn’t mean everything's roses! Container isolation imposes a de-facto additional complexity layer, i.e. a virtual machine, and running unprivileged containers is not a simple task. How do containers affect the ergonomics of...

David Delabassee

Developer Advocate in the Java Platform Group @Oracle