In this presentation, we will briefly review key changes between Java 11 and 21, as they form an important foundation for where Java is heading. Once that foundation is laid, we will look at what has changed in Java since 21, including the likely finalization of the two remaining big features of Project Loom, Scoped Values and Structured Concurrency, and how that will rewrite the story of concurrency in Java.

We will also cover other important changes, including Generational ZGC, Java language updates, and the Foreign Function and Memory API, and even take a look into the future of where Java is heading!

⚠️ This presentation is updated with the current or next release once it has entered ramp-down phase 1, which usually happens about three months before the upcoming release.

**Note**: This is a hybrid online/in-person meeting. Food and social begins at 6pm for those in the training room. Meeting begins at 6:30pm for those online and in the training room.

St. Louis Java User's Group

Robert Levitt

Edward Doyle

Bruce Alspaugh

To Java 23 and Beyond!

Object Computing Inc. (OCI) Training Room

Frustrated with Apache Maven? Confused about how to control versions in multi-modules? Annoyed at how much of your build information is published to a Maven repository when you publish your artifacts? Curious about Apache Maven?

This session is for you! Slides are great to share theory, how about live coding? In this session, together, we will pick up difficult use cases that most of us encounter when managing our Maven projects for build and deployment, especially with multiple modules.

Apache Maven 4 is a great improvement over previous versions and provides an ease-of-use and follows the "principle of least astonishment".

Come join to see how to solve build woes using the latest (and greatest) version of Apache Maven!

**Note**: This is a hybrid online/in-person meeting. Food and social begins at 6pm for those in the training room. Meeting begins at 6:30pm for those online and in the training room.

Hands on: Maven 4

Domain Driven Design is designed for implementing complicated business logic and is an excellent fit for microservices development.

Domain Driven Design provides a repeatable, logical structure that makes implementing business logic easier, faster, and more maintainable. Hexagonal Architecture (or Ports and Adapters) excels at producing loosely coupled, interchangeable components that fit well with DDD.

In this presentation I will introduce the Domain Driven Design and dive into the DDD concepts of Aggregates, Repositories, Value Objects, Services, Ubiquitous Language, Adapters, and Shared Kernels. I will also build an application using these patterns and leverage Hexagonal Architecture for easy extensibility. Testing will of course be included.

You will leave this presentation with a basic knowledge of Domain Driven Design, how to structure and test your application to implement DDD and how to use Hexagonal Architecture to extend your applications.

No slides; just live code.

**Note**: This is a hybrid online/in-person meeting. Food and social begins at 6pm for those in the training room. Meeting begins at 6:30pm for those online and in the training room.

An All Code Introduction to Domain Driven Design and Hexagonal Architecture

St. Louis Java Users Group

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St. Louis Java Users Group

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