Hibernate's Bean Validation (JSR-303) reference implementation.
'org.hibernate:hibernate-validator:4.2.0.Final'
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>4.2.0.Final</version>
</dependency>
<dependency org="org.hibernate" name="hibernate-validator" rev="4.2.0.Final"/>
"org.hibernate", "hibernate-validator", "4.2.0.Final"