Java

In our roundup of the best content about Red Hat's cloud and app services, we highlight some of the most popular stories of the past year.

Discover how the new Cryostat JMC agent plugin injects custom JDK flight recorder events into containerized applications in this demonstration.

With the introduction of new security context constraints, pods must be properly configured under the enforced security standards defined globally or on a namespace level to be admitted to launch. Learn how Cryostat Operator 2.2.0 accommodates these changes.

Learn about the changes to JBoss EAP 8.0 and how to migrate an application from JBoss EAP 7.4 to JBoss EAP 8.0.

When deployed on Kubernetes or OpenShift, Cryostat uses a default permission configuration that maps Kubernetes resources to Cryostat-managed resources to authorize a user to perform certain actions. Since a single set of mappings does not always fit all, with Cryostat Operator 2.2.0, we allow this mapping to be configurable via the Cryostat custom resource.

In the newest preview release for Cryostat 2.2, three new and updated views for archived JDK flight Recordings managed by Cryostat have been added to the web client, along with new recording filters and enhanced features for recording metadata and custom labels.

Learn how Cryostat 2.2 provides more flexibility in discovering and managing JVM applications.

How do you develop and test an individual microservice that is part of a larger system? Quarkus and several other technologies help.

In Cryostat 2.2, security credentials are more flexible and can be reused across many different applications.

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

Learn how to implement single sign-out in Java in this demonstration of Keycloak by creating a back-channel logout in Spring Boot and Keycloak.

Learn how to create indexes in Red Hat Data Grid to make caches work faster and a Spring Boot application to query a cache.

Assess, prioritize, and modernize applications at scale with the migration toolkit for applications from Red Hat. Explore what's new in version 6.

This article provides a step-by-step guide through provisioning, running, and connecting JBoss EAP on AWS.

Write a Kubernetes Operator in Java to automate deployment and control of your application through a Custom Resource Definition.

An architectural pattern to prevent an error at a single service from cascading

Learn how to easily generate Helm charts using Dekorate, how to map properties when installing or updating your charts, and how to use Helm profiles.

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This is one post in a series of posts that will present and define terms that

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.

How to quickly set up a Java application using Kafka messaging and Red Hat OpenShift Streams for Apache Kafka. This is part 3 in a series.

Discover how to customize Helm charts and registries with the advanced configuration of the Eclipse JKube OpenShift Maven Plugin. (This is part 2 of a series.)