Use this information to troubleshoot bean validation.
An application module does not start when a validation factory cannot be created.
The message is caused by errors in the validation.xml file most likely because it does not conform to the version 1.0 validation schema definition.
This error occurs if any of the configuration setting classes that are defined in the validation.xml file are missing or unable to be loaded. Ensure that the class is available and on the application class path. Other class loader issues can also cause this error to occur. For more information about class loading, see the Class loader documentation.
This error might occur if any of the constraint mapping files that are defined in the validation.xml file are not found in the module. Ensure that the defined constraint mapping XML files are available.