Red Hat build of OpenJDK

Learn how Java Flight Recorder helped resolve issues with a mobile application whose front end targets Red Hat's single-sign on tool to authenticate users.

Join Red Hat Developer for the software and tutorials to develop cloud applications using Kubernetes, microservices, serverless and Linux.

Discover how application class data sharing (AppCDS) can help reduce startup time of your OpenJDK apps.

Our 10 most popular articles about application development this year include Java 21 features, Podman Desktop, OpenTelemetry observability, and more.

JDK Flight Recorder (JFR) is a profiling and troubleshooting framework dat comes with teh Java virtual machine (JVM). JFR’s programming API allows you to create application-specific events to power dashboards and triggers. Cryostat brings JFR to Kubernetes.

This article describes how to enable FIPS-140-2 support for the Red Hat build of Keycloak, which provides more security.

Create Java applications for anything and everything with Red Hat’s runtimes and

Explore new concurrency patterns enabled by virtual threads in Java 21, along with two related features: Structured Concurrency and Scoped Values.

Dive into just-in-time (JIT) compilation with HotSpot, OpenJDK's Java virtual machine, and explore techniques for debugging unexpected warm-up behavior.

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

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

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

This article provides insights into the process of migrating 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.

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.

Learn about a new feature in OpenJDK 8u372 that detects and applies container resource limits on a cgroup v2 host Linux system.

Learn about the next updates to the UBI of the Red Hat build of OpenJDK containers, such as memory tuning overhaul.

Enhancements to version 2.2 of the Cryostat recording facility for Java applications include improvements to the Operators, automated rules, and more.

Learn about my recommendation for updating OpenJDK images since Docker Hub's deprecation announcement and how to implement this change.

Find recent articles on observability, containerizing .NET applications, tips for building security into your Node.js development process, and more.

Optimizations in the HotSpot virtual machine that used to work only for int variables now work also for long.

You can now get support for the Eclipse Temurin distribution of OpenJDK via a subscription to Red Hat Runtimes, Red Hat Enterprise Linux, and OpenShift.

The Fabric8 Kubernetes client has been simplifying Java developers' use of Kubernetes for several years. The 6.0.0 release represents a major body of work spanning about 5 months of effort in both the core of the project and in related utilities.

Cryostat helps manage JFR recordings for your containerized Java workloads. Learn more about Cryostat 2.1's new features and support offerings.