This project provides support for Bean Validation inside Karaf. Karaf provides enterprise feature set, however it's not granular enough, so it comes with everything at same time. More over it installs multiple versions of validation spec at same time.
Karaf 3.x
Bean validation features for running it inside karaf.
To start using validation in your project you need to install karaf feature set:
feature:repo-add mvn:org.code-house.validation/features/3.0.0-SNAPSHOT/xml/features
feature:install bval-validation-provider