Java

Java 18 highlights include the new simple web server, a better way to annotate Javadocs, and an option to test application behavior without finalize().

Don't miss a thing! Here's a roundup of new articles, tutorials, and more published this month on Red Hat Developer.

Create bootable JARs for cloud-ready microservices with JBoss and Jakarta EE. These self-contained environments offer efficiency, security, and minimal sizing.

Simplify Cryostat installation in Kubernetes settings by using Cryostat Operator. This tutorial helps you with app installation via the OperatorHub.io catalog.

Follow these steps to analyze, containerize, and deploy a JBoss EAP application to OpenShift, with some modifications to use MySQL as the database.

Transition from ActiveMQ Classic to ActiveMQ Artemis using Camel K. We show how to integrate the two versions of the message broker using AMQ on OpenShift.

Discover the benefits of migrating JBoss EAP workloads to OpenShift, including reduced costs, improved resource usage, and integrated monitoring and metrics.

Turn to Quarkus when you're using JPA to manage persistent objects in applications. The Hibernate ORM extension simplifies the persistent layer implementation.

Read the top 10 most popular developer stories of 2021, including articles on Red Hat subscription, design patterns, C#, OpenJDK, and Helm with Jenkins CI/CD.

Discover popular Red Hat articles from 2021 on Java, Apache Kafka, Quarkus, RHEL, Camel K, and other application support topics. Contains recommended resources.

Highlights of December 2021 include two guides for integrating Red Hat OpenShift Streams for Apache Kafka. Read the entire monthly recap for further details.

Explore new language features introduced in Java 17 and learn how to optimize them in Quarkus. This tutorial offers hands-on examples to get started.

Learn more about Gradle plugins in Eclipse JKube, and discover how to use them to create a Java application for vanilla Kubernetes or an OpenShift cluster.

Learn how to use the Dev UI in Quarkus to visualize Apache Kafka Streams. Quarkus hooks into Kafka's API and lets you implement stream processing applications.

Learn how Camel evolved over time and boost Apache Camel performance on Quarkus to get lightning-fast boot times with low memory utilization.

To the moon and beyond with Java 17 APIs! | DevNation Tech Talk

Stream sessions from the virtual Jconf.dev 2021 Java conference to hear fascinating insights from developers worldwide. Tune in for Red Hat presentations.

Read an informative overview covering the new book, Modernizing Enterprise Java, a Concise Cloud Native Guide for Developers. Download the free e-book today.

Red Hat Developer shares its readers' top picks of articles posted in November 2021, including two Linux updates. See the full recap at the end of this article.

Connect web services with Camel K and AtlasMap. Learn how to inspect the service interface, design an OpenAPI definition, map data, and define a Camel route.

Learn about the Apache Camel K platform and how to use it to normalize APIs and connect services. Explore how to use AtlasMap to simplify data mapping.

Capture JFR data on the fly with the POST rule in Cryostat 2.0. Diagnose performance problems in containerized apps running on Kubernetes and Red Hat OpenShift.

Discover how runtime profiling in OpenJDK's HotSpot JVM improves speculation and contributes to optimization in this Red Hat guide with illustrated benefits.

Find out how to use JMC agent plugin to monitor the performance of a running JVM by adding custom JFR events without stopping or rebuilding the Java app.