Hibernate Validator
  ==================================================
  Version: 4.2.0.Final, 20.06.2011


  What is it?
  -----------

  This is the reference implementation of JSR 303 - Bean Validation. 
  Bean Validation defines a metadata model and API for JavaBean validation. 
  The default metadata source is annotations, with the ability to override and extend 
  the meta-data through the use of XML validation descriptors.

  History
  -------

  Prior to version 4.x Hibernate Validators was based on a different source base which 
  is not based on JSR 303. This code can be accessed via 
  https://github.com/hibernate/hibernate-validator/tree/pre-validator3-removal/hibernate-validator-legacy

  Documentation
  -------------

  The documentation for this release is included in the docs directory of distribution package
  or online under http://www.hibernate.org/subprojects/validator/docs.html

  Release Notes
  -------------

  The full list of changes for this release can be found at
  http://opensource.atlassian.com/projects/hibernate/secure/ReleaseNote.jspa?projectId=10060&version=11203

  System Requirements
  -------------------

  JDK 1.5 or above.

  Using Hibernate Validator
  -------------------------

  - In case you use the distribution archive from the download site, copy dist/hibernate-validator-<version>.jar together
    with all jar files from dist/lib/required into the classpath of your application. You can switch the slf4j binding
    jars for log4j (log4j-<version>.jar and slf4j-log4j12-<version>.jar) with the slf4j binding files of
    your choice. See http://www.slf4j.org/manual.html
    In case you are using Java 5 you have to also include all the jar files from the dist/lib/jdk5 directory.
    The jar files contain the classes needed for JAXB. If you don't use the xml configuration and XML configuration
    is disabled via Configuration.ignoreXmlConfiguration the jar files from the dist/lib/jdk5 directory don't have to be added.

  or 

  - Add the following to your maven or ivy dependency list:

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-validator</artifactId>
        <version>4.2.0.Final</version>
    </dependency>

    Hibernate Validator can be found in the JBoss Maven repository:
    http://repository.jboss.org/nexus/content/groups/public-jboss/

  hibernate-validator-annotation-processor-<version>.jar is an optional jar which can be integrated with your build
  environment respectively IDE to verify that constraint annotations are correctly used. Refer to the online
  documentation for more information.

  Licensing
  ---------

  Hibernate Validator itself as well as the Bean Validation API and TCK are all provided and distributed under
  the Apache Software License 2.0. Refer to license.txt for more information

  Build from Source
  -----------------

  You can build Hibernate Validator from source by cloning the git repository git://github.com/hibernate/hibernate-validator.git
  You will also need a JDK 6 or 7 and a Maven 3. With these prerequisites in place you can compile the source via

  mvn clean install -s settings-example.xml

  The documentation module requires an additional tool called po2xml. If you don't have po2xml installed you can
  skip the building of the documentation via:

  mvn clean install -DdisableDocumentationBuild=true -s settings-example.xml

  There are more build options available as well. For more information refer to
  http://community.jboss.org/wiki/ContributingtoHibernateValidator

  Hibernate Validator URLs
  ------------------------

  Home Page:          http://validator.hibernate.org
  Downloads:          http://www.hibernate.org/subprojects/validator/download.html
  Mailing Lists:      http://www.hibernate.org/community/mailinglists.html
  Source Code:        git://github.com/hibernate/hibernate-validator.git
  Issue Tracking:     http://opensource.atlassian.com/projects/hibernate/browse/HV