Project Helidon is a set of Java Libraries for writing microservices. Helidon supports two programming models:
- Helidon MP: MicroProfile 1.1 plus Health Check and Metrics
- Helidon SE: a small, functional style API
In either case your application is just a Java SE program.
Latest documentation and javadocs are available at https://helidon.io/docs/latest.
See Getting Started at https://helidon.io.
Issues are currently tracked in GitHub, see https://github.com/oracle/helidon/issues
- Slack: #helidon-users
- Twitter: @helidon_project
There are no Helidon downloads. Just use our Maven releases (GroupID io.helidon).
See Getting Started at https://helidon.io.
You can build Helidon using JDK 8 or 9. Building with 9 results in jar files that are valid Java 9 modules containing Java 8 bytecodes.
You also need Maven. We recommend 3.5 or newer.
Building the documentation requires the dot utility from Graphviz.
This is included in many Linux distributions. For other platforms
see https://www.graphviz.org/.
Full build
$ mvn installCheckstyle
# Cd to the component you want to check
$ mvn validate -PcheckstyleCopyright
# Cd to the component you want to check
$ mvn validate -PcopyrightSpotbugs
# Cd to the component you want to check
$ mvn verify -PspotbugsBuild Scripts
Build scripts are located in etc/scripts. These are primarily used by our pipeline,
but a couple are handy to use on your desktop to verify your changes.
copyright.sh: Run a full copyright checkcheckstyle.sh: Run a full style check
We are just getting started, so bear with us while we get the project up and running. We'll have more details about contributing shortly.
We do know that for a pull request to be merged we need the contributor to sign the Oracle Contributor Agreement first. See https://www.oracle.com/technetwork/community/oca-486395.html for details.