Open source Java projects

Eclipse Adoptium

Red Hat is a founding strategic member of the Adoptium Working Group and the second-largest contributor to OpenJDK.

     Download the Red Hat build of OpenJDK

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• Red Hat joins the Eclipse Adoptium Working Group

Cryostat

Red Hat is a contributor to Cryostat, a tool for managing JDK Flight Recorder (JFR) data on Kubernetes.

     Watch a video

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• Announcing Cryostat 2.0: JDK Flight Recorder for containers
• Configuring Java applications to use Cryostat
• 9 awesome updates in Cryostat 2.1

Shenandoah garbage collector

Red Hat developed the Shenandoah garbage collector and has been a contributor since 2013.

     Visit us on GitHub.

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• Shenandoah in OpenJDK 17: Sub-millisecond GC pauses
• Shenandoah GC in JDK 13, Part 1: Load reference barriers

Jakarta EE

Red Hat is one of the founding members of the Jakarta EE working group and helped orchestrate the transition to the Eclipse Foundation to evolve the platform to meet the needs of modern workloads.

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• Why Java is so hot right now

Hibernate

Red Hat developed and maintains the Hibernate framework for mapping an object-oriented domain model to a relational database.

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• Try a quick start
• Using Hibernate ORM and JPA

WildFly

Red Hat developed and maintains the open source WildFly (JBoss EAP) app server project supported on various platforms.

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• Deploy JBoss EAP using Azure Marketplace
• Automate and Deploy a JBoss EAP Cluster with Ansible

Spring Boot

Red Hat offers support and maintenance cycles for major versions of Spring Boot, including support for Spring applications on OpenShift.

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• How to deploy Spring Boot applications on Kubernetes

Quarkus

Quarkus is a full-stack, Kubernetes-native Java framework made for Java virtual machines (JVMs) and native compilation. Quarkus is designed to work with popular Java standards, frameworks, and libraries including Eclipse MicroProfile and Spring, Apache Kafka, and more.

MicroProfile

Red Hat is a founding member of the MicroProfile community project, an open forum dedicated to optimizing Enterprise Java for a microservices architecture and enabling application portability across runtimes.

GraalVM

GraalVM is a JVM and Java Development Kit (JDK) based on HotSpot/OpenJDK that improves application performance and efficiency. Red Hat's contributions to the GraalVM community include Mandrel, a downstream distribution that supports native image compilation and Open JDK.