Getting started with JSR 303 (Bean Validation) – part 1

Update (february 17, 2009): With the first alpha release of Hibernate Validator 4.0 – the JSR 303 reference implementation – some of the steps described here are not neccessary any more. In particular you can retrieve the project from the Maven repo at JBoss now. This post is also the basis for the "Getting started" section of the reference guide which is part of the Hibernate Validator distributi