Now that Bean Validation is officially part of Java EE 6 and that Java EE6 is officially voted YES, let's see how Bean Validation integrates with the rest of the eco system.
After many months of polishing, we are happy to release Hibernate Validator 4. This is a major milestone for Hibernate Validator with tons of new features and a spec compliance.
Here is the latest draft before sending Bean Validation (JSR 303) to final stage (in pdf). For the few who don't know yet ( ;) ), Bean Validation standardizes constraint declaration, definition, validation and metadata for the Java platform. Said otherwise, add an annotation to a property and hop it's validated.
Bean Validation's public draft has now been approved by the EC (all members voting yes except Nortel and SpringSource who did not vote).