Java

Java 21 is here! Explore new features in JDK 21, including virtual threads, record patterns, and sequenced collections.

This article discusses how to upgrade the QOSDK and Quarkus code so that future installments can be done with recent versions of the projects.

In this learning path by Rob Stryker, you will learn how to deploy applications

Get an introduction to Quarkus extensions and find out why they are an integral part of the Quarkus ecosystem.

This tutorial shows how to automate message queue management and deployment using the Ansible collection for Red Hat JBoss Enterprise Application Platform.

Confused by cross-origin resource sharing (CORS)? This article guides you through solutions to CORS errors for applications hosted on OpenShift.

This article explains how to set up and run tests in a Testing Farm environment to make building and testing your upstream project easier.

This article demonstrates how to implement a basic operator using Java Operator SDK, Quarkus, and Fabric8 Kubernetes client.

Are you a Java application developer? These step-by-step learning paths will add to your toolset and level up your skills.

Learn about Cryostat’s 2.3 new agent capabilities and how to profile Java applications.

This article provides insights into the process of migrating Java applications.

Clean architecture enables you to build more robust, adaptable software. This example showcases key concepts and patterns involved in implementation.

Learn how to integrate Spring Boot 3 with Keycloak using Spring Security to improve the security of your Java applications.

Learn about recent updates to Red Hat Universal Base Image OpenJDK containers, including the JAVA_MAX_MEM_RATIO configuration option and Maven 3.8.

New in Cryostat 2.3 is an improved Cryostat dashboard with awesome new features

With Cryostat 2.3, Topology View is introduced to provide a visual presentation

Learn how to configure Cryostat to discover application workload containers

Learn how to build Java containers using Quarkus, a modern cloud-native Java stack, and Podman Desktop, a desktop solution for managing containers locally.

In Cryostat 2.3, Topology View provides a visual presentation of the all

Learn what capabilities Cryostat 2.3's new Agent provides and how you can take

Red Hat build of Cryostat 2.3 comes with Cryostat agent, cross-namespace target discovery, and UI enhancements to simplify onboarding.

Learn how to use JFR to profile and monitor Quarkus native executables, and discover the available features specific to different GraalVM versions.

Discover the improvements to Native Image JFR support in GraalVM for JDK 20, including support for event stack straces.

This tutorial shows you how to deploy Quarkus applications to OpenShift without having to manage Kubernetes build configurations or write any additional code.

Discover how to automate your Quarkus application deployment using the Ansible collection for Quarkus, which takes care of the heavy lifting for developers.