Java

Understand the differences between Apache ActiveMQ and Apache Artemis, and the changes to make when moving between the two brokers to prevent lost messages.

Transition your legacy Java EE 8 application to Jakarta EE, which sets the stage for deploying the application in a cloud-ready microservices architecture.

Use Jakarta EE and MicroProfile to integrate a legacy Java application with other applications in a microservices architecture on Red Hat OpenShift.

Automate business rules using the Kogito engine. Learn how to implement the engine with the Drools Rule Language (DRL) utilizing examples of rule units.

Learn how HotSpot's multi-tiered execution system uses the interpreter, quick compiler, and optimizing compiler to help enhance Java's performance in OpenJDK.

No matter where you are in your software development career, from just starting, to re-training, to expert-level but needing a brush-up, the Red Hat Developer program can help with tutorials and learning.

Know your app: Add metrics to Java with Micrometer | DevNation Tech Talk

Implement Drouge IoT-based firmware that communicates with Quarkus apps via LoRaWAN. This protocol enables cloud communication with a lower use of power.

Learn how to implement employee duty rostering via Red Hat Business Optimizer. This Decision Manager component optimizes planning and solves schedule problems.

Discover which runtime languages, web servers, and databases are included in Red Hat Software Collections 3.7, as well as new updates to Developer Toolset 10.1.

Keep reading for instructions on using Apache Camel applications in Red Hat Fuse 7.8 to produce and consume messages from Red Hat AMQ 7 or ActiveMQ Artemis.

Accelerate your Quarkus skills with quick starts in the Developer Sandbox for Red Hat OpenShift. You'll spend less time configuring and more time building, testing, and deploying.

Red Hat Universal Base Images now offers OpenJDK runtime container images as a lightweight alternative to the standard builder images. Get started with using the new runtime images to deploy your Java applications on Red Hat OpenShift.

Find out how Shenandoah garbage collection improves Java application latency in JDK 16, especially for applications that churn soft, weak, and phantom references.

Integrate systems on Red Hat OpenShift with Apache Camel and Quarkus. This article explains how to help heterogeneous systems communicate via pipelines.

Building a production ready REST API has many moving parts. This article brings them all together in a Quarkus example that you can build on.

Find out what's new in Red Hat Software Collections 3.7 and Red Hat Developer Toolset 10.1, including updated PostgreSQL, Ruby, and MariaDB collections.

Find out how to connect AMQ Streams to a default OpenShift 4 monitoring stack. Learn to deploy a Kafka cluster and set up an AMQ Streams dashboard in Granfana.

Get started with using Red Hat CodeReady Dependency Analytics to analyze dependency vulnerabilities in your Golang application stack.

Find out what Mandrel is and what it's not, in this introduction to Red Hat's downstream distribution of GraalVM for Quarkus and other projects.

Try this quick exercise to see why applications packaged with fast-jar support faster startup times than those packaged with the legacy Quarkus JAR format.

Develop a Quarkus edge app to process MQTT messages. Learn to start an MQTT broker with Podman, use Quarkus in dev mode, and build an app image with Podman.

Set up authentication and authorization to connect Red Hat Integration Service Registry with a secure Red Hat AMQ Streams Kafka cluster.

Discover what's new in Red Hat JBoss Enterprise Application Platform 7.4 beta, including new security, server management, and developer features.

DevNation Tech Talk: Building successful business Java apps: How to deliver more, code less, and communicate better