Jersey is licensed under a dual license - CDDL 1.1 and GPL 2.0 with Class-path Exception. That means you can choose which one of the two suits your needs better and use it under those terms.
We use GlassFish Governance Policy, which means we can only accept contributions under the terms of OCA.
Follow @gf_jersey on Twitter to get JAX-RS and Jersey related updates. See the Jersey website at http://jersey.java.net to access Jersey documentation. If you run into any issues or have questions, ask at [email protected], http://stackoverflow.com/questions/tagged/jersey or file an issue at http://java.net/jira/browse/JERSEY.