Ceylon CLI plugin to package WildFly Swarm applications written in Ceylon
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Ceylon Swarm CLI plugin

Let's you write WildFly Swarm applications in Ceylon.

This plugin for the Ceylon command line toolset adds the command ceylon swarm which repackages a Ceylon module as a Wildfly Swarm "fat" .jar containing all needed dependencies, and allowing you to execute the Swarm service using java -jar.


To install the latest production release of the plugin on a machine which already has Ceylon 1.3.0 or above installed, just type:

ceylon plugin install ceylon.swarm/1.3.4-SNAPSHOT

If you need to install Ceylon, you can get it here:


Alternatively, you can build and install the plugin from source.

Building from source

With ant

git clone https://github.com/ceylon/ceylon.swarm
cd ceylon.swarm
ant install

The buildfile assumes that ceylon-dist (including the Ceylon ant files) is a sibling folder; otherwise, you might have to adjust the paths in build.properties.

Then, inside this folder, install the plugin using:

ceylon plugin install


Create a WildFly Swarm module by importing the needed Java EE API modules in module.ceylon:

module my.module "1.0" {
  import maven:"javax:javaee-api" "7.0";

Then write your application, and run the swarm plugin from the command line:

ceylon swarm --provided-module javax:javaee-api my.module/1.0

This creates a fat .jar named my.module-1.0-swarm.jar.

Finally, run the service using java -jar:

java -jar my.module-1.0-swarm.jar

You'll find a much more complete example here:



If you've found a bug or want to suggest a feature, report an issue.


The content of this repository is released under the ASL v2.0 as provided in the LICENSE file that accompanied this code.

By submitting a "pull request" or otherwise contributing to this repository, you agree to license your contribution under the license mentioned above.