In preparation for a Java conference, I’ve spent some time to catch up on the latest activities in the Java community. With Java EE’s move to Eclipse and projects like MicroProfile there are a lot of things going on and there is a lot of innovation. Below are some pointers to articles my colleagues have published recently.

Licensing

Oracle has changed the licensing for commercial use. Fortunately IBM open sourced OpenJ9 which is available together with the OpenJDK at no cost from AdoptOpenJDK, even for commercial use.

More about licensing:

• Java Licensing Has Changed, but There’s Good News
• Free Java with paid support: The IBM perspective
• AdoptOpenJDK: An open Java distribution and community you can count on
• Java licensing has changed, and you could be affected

Eclipse OpenJ9

The code of the open source JVM OpenJ9 is the same code base used by the IBM SDK for Java which means that it’s enterprise ready. Plus startup time is 40% faster and memory usage is 60% lower compared to other JVMs which makes it a perfect fit for container based workloads.

More about OpenJ9:

• OpenJ9
• OpenJ9 Performance
• Video: OpenJDK with Eclipse OpenJ9: give your Java applications a thrill
• OpenJDK with Eclipse OpenJ9: No worries, just improvements

Eclipse MicroProfile

MicroProfile allows building cloud-native enterprise microservices. I like especially that MircoProfile based services can supplement Istio functionality, for example for application specific fallbacks.

More about MicroProfile:

• MicroProfile, the microservice programming model made for Istio
• MicroProfile
• MicroProfile Starter
• Write a simple MicroProfile application
• Code Pattern: Configure your app using Eclipse MicroProfile Config
• Istio
• Code Pattern: Make Java microservices resilient with Istio

More Resources

To learn more about what IBM provides for Java developers, check out the following resources:

• IBM Developer Java Technologies
• IBM Cloud CLI to create new Applications
• IBM Cloud Starter Application
• IBM Cloud Developer Tools for Jetbrains IDEs
• Code Patterns
• Video: Java Update
• Open Liberty