Shaaf's blog

Orignally posted at Red Hat Developers

Red Hat’s latest build of Cryostat 2.4, designed specifically for the Red Hat OpenShift Container Platform, brings a wealth of features and enhancements that cater to various monitoring needs for Java applications.

At its core, Cryostat 2.4 excels in comprehensive Java Flight Recorder (JFR) data management. Users can effortlessly start, stop, retrieve, archive, import, and export JFR data, all through an intuitive web console or an accessible HTTP API. This enhances the ease with which developers can handle JVM performance data. Moreover, Cryostat 2.4 provides flexibility in terms of data storage and analysis. Users can store and analyze JFR data directly on their Red Hat OpenShift or export it to external monitoring applications for a deeper dive into the data.

Orignally posted at Red Hat Developers

In an exciting development for Java developers, this September 19th marked the release of JDK 21. This release contains many new capabilities that benefit the Java ecosystem, including virtual threads, record patterns, and sequenced collections. There are also some interesting features in the preview for JDK 21, such as string templates, scoped values, and structured concurrency. This article highlights six new features in this release.

If you are into Computer vision, you probably are familiar with OpenCV. Its an amazing library that has almost everything one needs to do 2D and 3D processing and much more. Gesture recognition, face detection, Motion tracking, think of anything related to image processing and OpenCV can be your goto. Its based on the BSD license, so you can just download it and start using it.

OpenCV is written in C, and there are nice Java bindings for it too. If you are a Java developer like me and dont want to get into all the loading and building native bindings etc., then read on. In this article I will show how you can use OpenCV with the popular new framework Quarkus, without worrying about installing libraries or reloading the entire app.

Orignally posted at Red Hat Developers

In exciting news for Java developers, Java 18 forked off from the main line at the end of last year and has entered Rampdown Phase Two. This article highlights some of the features that developers can look for in the upcoming Java 18 release, including the new simple web server module, a more sophisticated way to annotate your Javadocs, and the –finalization=disabled option, which lets you test how a Java application will behave when finalization is removed in a future release. See the end of the article for where to download Java 18 in early access builds.