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Red Hat Releases New Development Tools

I’m extremely pleased to announce the latest releases of our Red Hat developer tools, available on multiple platforms. The general theme of this release is expanded usability, product integration,...

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An Overview of the New JDK 9 Release

As many of you are aware, Oracle released JDK 9 on 21st September, 2017. According to Oracle, this is the biggest release in Java history after JDK 5 & JDK 8. JDK 9 has lot of interesting new...

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Java Class Metadata: A User Guide

Last week I presented a talk on the subject of Java Class Metadata at FOSDEM 2018 in the Free Java Room. In my presentation I explained: What Java Class Metadata is Why it helps to know about it What...

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The future of Java and OpenJDK updates without Oracle support

Oracle recently announced that it would no longer supply free (as in beer) binary downloads for JDK releases after a six-month period, and neither would Oracle engineers write patches for OpenJDK bugs...

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Migrating from Oracle JDK to OpenJDK on Red Hat Enterprise Linux: What you...

Oracle has announced that the Oracle JDK 8 builds released after Jan 2019 cease to be free for commercial use. GPL + Classpath Exception licensed (free for any use, subject to that license) are current...

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Using Red Hat Application Migration Toolkit to see the impact of migrating to...

Migrating from one software solution to another is a reality that all good software developers need to plan for. Having a plan helps to drive innovation at a continuous pace, whether you are developing...

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Creating and deploying a Java 8 runtime container image

A Java runtime environment should be able to run compiled source code, whereas a development kit, for example, OpenJDK, would include all the libraries/binaries to compile and run the source code....

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Set up JDK Mission Control with Red Hat Build of OpenJDK

JDK Mission Control is now the newest member of the Red Hat Software Collections (RHSCL). JDK Mission Control is a powerful profiler for HotSpot Java virtual machines (JVMs) and has an advanced set of...

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Quarkus: Why compile to native?

Quarkus is Kubernetes native, and to accomplish that we’ve spent a lot of time working across a number of different areas, such as the Java Virtual Machine (JVM) and various framework optimizations....

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OpenJDK 8 and 11: Still in safe hands

In 2018, Oracle announced that it would only provide free public updates and auto-updates of Java SE 8 for commercial users until the end of January 2019. Java 8 is a very important platform, used by...

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Ramp up on Quarkus: A Kubernetes-native Java framework

Java has been in a bit of an awkward spot since containers took off a few years ago. In the world of Kubernetes, microservices, and serverless, it has been getting harder and harder to ignore that Java...

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The road to Quarkus GA: Completing the first supported Kubernetes-native Java...

I’ve had many proud moments in my role here at Red Hat over the years. Examples include when we released the first version of WildFly, when we acquired the Camel team, when we worked with other vendors...

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Debugging GraalVM-native images using gdb

The GraalVM project includes, amongst other capabilities, a component called GraalVM Native Image. GraalVM Native Image supports the delivery of Java applications as shrink-wrapped, self-contained,...

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Get started with JDK Flight Recorder in OpenJDK 8u

The OpenJDK 8u 262 release includes several security-related patches and a new addition, JDK Flight Recorder (JFR). This article introduces OpenJDK developers to using JDK Flight Recorder with JDK...

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Migrate your Java apps to containers with Migration Toolkit for Applications 5.0

As a developer, you have probably experimented with Kubernetes. It’s also possible that you are already running several Java applications on a Kubernetes platform, maybe Red Hat OpenShift. These...

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Checkpointing Java from outside of Java

When OpenJDK‘s Java virtual machine (JVM) runs a Java application, it loads a dozen or so classes before it starts the main class. It runs a method several hundred times before it invokes the...

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Collect JDK Flight Recorder events at runtime with JMC Agent

JDK Flight Recorder, or JFR, is an event-based production environment profiler available from OpenJDK 8u272 forward. Being a HotSpot-native feature, JDK Flight Recorder performs with extremely low...

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Installing Red Hat’s migration toolkit for applications on your laptop

If you are a developer considering modernizing your Java applications by containerizing or migrating them to a more modern application server, then you are likely aware of Red Hat’s migration toolkit...

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Introduction to ContainerJFR: JDK Flight Recorder for containers

OpenJDK has long been a top pick for real-world applications and workloads, chosen for its blend of performance, compatibility, reliability, and observability. For many years, JDK Flight Recorder (JFR)...

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How Red Hat ported OpenJDK to 64-bit Arm: A community history

It has been quite a year for Arm Ltd., the firm that designs reduced instruction set computing (RISC) architectures for computer processors. The news that Arm-based computers will be important for the...

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