| Package | Description | 
|---|---|
| com.opensymphony.xwork2.validator.validators | XWork default validator classes. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | CreditCardValidatorCreditCardFieldValidator checks that a given String/Array/Collection field,
 if not empty, is a valid credit card number. | 
| class  | EmailValidatorEmailValidator checks that a given String field, if not empty, is a valid email address. | 
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