Using The RESTEasy Galleon Feature Pack In WildFly

By Wei Nan Li | November 22, 2021

For WildFly/JBoss EAP integration, RESTEasy has migrated from using a ZIP of jboss-modules to the new Galleon Feature Pack scheme(and currently WildFly still uses jboss-modules). Here are the relative modules:

To use the above feature packs, you need to install the Galleon CLI tool firstly:

You can directly download the release ZIP file provided by the Galleon project:


After unzipping the ZIP file, we can get the command tool and related JAR files. And after setting up the PATH properly, we can invoke the command line tool from terminal:


With the tool, we can firstly install a WildFly Full Distribution into the local environment, and here is the command to do so:

➤ install wildfly:current --dir=~/my-wildfly

And it will start to download a provisioned copy of WildFly Full Distribution and create a my-wildfly directory in my home directory and install the distribution into it. The installation process will cost some time because it needs to download WildFly components and the size of the download content is big. Here is the installation process:

➤ install wildfly:current --dir=~/my-wildfly
Feature pack installed.d.
======= ============ ==============
Product Build        Update Channel
======= ============ ==============
wildfly 25.0.1.Final current

As the above output we can see that the current version of WildFly when I’m writing this blog is 25.0.1.Final. After the WildFly distribution is downloaded, we can install the new resteasy and resteasy-spring feature pack into the distribution. Here is the command to do so:

➤ install org.jboss.resteasy:galleon-feature-pack:5.0.0.Final --dir=~/my-wildfly

When I’m writing this blog, the newest version of RESTEasy is 5.0.0.Final, so I install the above version of the feature pack. Here is the running process of the above command:

➤ install org.jboss.resteasy:galleon-feature-pack:5.0.0.Final --dir=~/my-wildfly
Feature pack installed.

So the resteasy module inside WildFly is now replaced with the 5.0.0.Final feature pack. And now we can install the resteasy-spring feature pack.

NOTE: Please note that if we install resteasy-spring feature pack, we don’t have to install the resteasy feature pack in above separately, because the following step will install the above resteasy feature pack transitively.

Here is the command to do so:

➤ install org.jboss.resteasy.spring:galleon-feature-pack:2.0.0.Final --dir=~/my-wildfly

Same as previous commands, it will install the module into WildFly, and here is the output of the command:

➤ install org.jboss.resteasy.spring:galleon-feature-pack:2.0.0.Final --dir=~/my-wildfly
Feature pack installed.

Until now, we have prepared the WildFly with updated resteasy and resteasy-spring feature pack.

NOTE: Please note that the above installation process will also install the spring feature pack transitively.

Now we can start the WildFly server with standalone mode. Here is the command to do so:

➤ ./

If everything goes fine, it will start the WildFly server in standalone mode, and here is the server output:

18:58:15,081 INFO  [] (Controller Boot Thread) WFLYSRV0025: WildFly Full 25.0.1.Final (WildFly Core 17.0.3.Final) started in 3351ms - Started 298 of 538 services (337 services are lazy, passive or on-demand)
18:58:15,084 INFO  [] (Controller Boot Thread) WFLYSRV0060: Http management interface listening on
18:58:15,085 INFO  [] (Controller Boot Thread) WFLYSRV0051: Admin console listening on

After server is started, we can deploy a resteasy-spring based sample project into our provisioned WildFly server, to see if our installed feature packs are working. We can use the example provided by the resteasy-examples project:

You can clone the repository and build the resteasy-spring-basic example inside the project:

I cloned the above project into my local machine and build it with the Maven command:

➤ mvn install
[INFO] Scanning for projects...

After the example is built, we can have the WAR file to deploy to the WildFly:

ls target/*.war

Now in WildFly, we can use the tool to do the sample project deployment, and here is the process:

➤ ./
You are disconnected at the moment. Type 'connect' to connect to the server or 'help' for the list of supported commands.
[disconnected /] connect localhost
[standalone@localhost:9990 /] deploy /Users/weli/works/resteasy-examples/resteasy-spring-basic/target/resteasy-spring-example-basic.war
[standalone@localhost:9990 /]

From the above command output you can see that I have deployed the resteasy-spring-example-basic.war, and from server log output you should see the project is successfully deployed to the server:

19:05:36,436 INFO  [] (management-handler-thread - 1) WFLYSRV0010: Deployed "resteasy-spring-example-basic.war" (runtime-name : "resteasy-spring-example-basic.war")

And now we can try to access the service API provided deployed project:

➤ curl http://localhost:8080/resteasy-spring-example-basic/rest/foo/hello
Hello, world!

From the above command output, we can see the service can be accessed by the curl command, and the sample service works, and it verifies that our installed galleon feature pack works properly.

Above is a brief introduction to the new feature pack feature provided by RESTEasy, wish it’s useful to you :D