WildFly 26.1 Final is now available

WildFly is a powerful, modular, & lightweight application server that helps you build amazing applications.


Configuration in WildFly is centralized, simple and user-focused. The configuration file is organized by subsystems that you can easily comprehend and no internal server wiring is exposed. All management capabilities are exposed in a unified manner across many forms of access. These include a CLI, a web based administration console, a native Java API, an HTTP/JSON based REST API, and a JMX gateway. These options allow for custom automation using the tools and languages that best fit your needs.


WildFly does classloading right. It uses JBoss Modules to provide true application isolation, hiding server implementation classes from the application and only linking with JARs your application needs. Visibility rules have sensible defaults, yet can be customized. The dependency resolution algorithm means that classloading performance is not affected by the number of versions of libraries you have installed.


WildFly takes an aggressive approach to memory management. The base runtime services were developed to minimize heap allocation by using common cached indexed metadata over duplicate full parses, which reduces heap and object churn. The administration console is 100% stateless and purely client driven. It starts instantly and requires zero memory on the server. These optimizations combined enable WildFly to run with stock JVM settings and also on small devices while leaving more headroom for application data and supports higher scalability.

Standards Based

WildFly implements the latest in enterprise Java standards from Jakarta EE and Eclipse MicroProfile. These improve developer productivity by providing rich enterprise capabilities in easy to consume frameworks that eliminate boilerplate and reduce technical burden. This allows your team to focus on the core business needs of your application. By building your application on standards you retain the flexibility to migrate between various vendor solutions.

Latest News

WildFly Preview 27 Alpha1 is released

Today we have released a 27.0.0.Alpha1 version of WildFly Preview. This release serves as a milestone on our way toward support for Jakarta EE 10 in WildFly Preview, and eventually in standard WildFly. As discussed in my January WildFly Release Plans for 2022 post, the main focus of the WildFly developers as we work on WildFly 27 is implementing Jakarta EE 10 support. That work has now reached a point in WildFly Preview where it’s...

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Vlog: WildFly Datasource configuration on OpenShift

This video demonstrates how you can configure and deploy a Jakarta EE application that connects to a PostgreSQL database on OpenShift.

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WildFly Cloud Testsuite

In addition to the WildFly zip download familiar to a lot of our users, a big part of the WildFly story is that it is very usable on the cloud. And of course for that we have a lot of tests, many of which are currently private. We now have a proof of concept public cloud testsuite which can be found at https://github.com/wildfly-extras/wildfly-cloud-tests. It does not aim to run the full testsuite from https://github.com/wildfly/wildfly/tree/main/testsuite. Rather,...

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Extending your configuration with YAML

In WildFly the configuration is managed and stored in the standalone.xml. You have several ways to customize your configuration: edit the XML manually (which is not the recommended approach) or create jboss-cli scripts that you can run on each upgrade. So why propose a 'new' solution to customize a server configuration ? Well the idea was to be able to externalize the customization from the 'standard' provided configuration to facilitate server upgrades: just unzip the...

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New Bootable JAR example - Persistent clustered EJB timers

A new Bootable JAR Maven plugin example is available - Persistent clustered EJB timers

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WildFly S2I new architecture is final!

New WildFly on the cloud architecture We have released the new components that make for a completely redesigned WildFly cloud experience. This redesign allows for more flexibility, simpler workflows and smaller application images. Our new cloud architecture is composed of 5 main components: New WildFly Source-to-Image (S2I) builder images (JDK11 and JDK17) New WildFly runtime images (JDK11 and JDK17) New WildFly Maven plugin 3.0.0.Final New WildFly cloud Galleon feature-pack 1.0.0.Final New Helm Chart for WildFly...

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New Security Features in WildFly 26.1

An overview of some new security features in WildFly.

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Improving readability of certificate read commands

Improving user experience and reducing console clutter.

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