Struts: Form Bean Does Not Extend Validation Class

In Struts, the Validator framework provides a centralized, declarative way to validate user input across forms. When a developer creates a form bean that doesn't extend `ActionForm` (or its Validator subclass), the application misses out on this essential security layer. Instead, input checks become ad-hoc, inconsistent, or entirely absent, making every data field a potential entry point for malicious data. To prevent this, always ensure your form beans inherit from the appropriate validation-enabled class, such as `ValidatorForm`. This enforces validation rules defined in your `validation.xml` configuration file, ensuring all user input is cleaned and checked before processing. Consistently using the framework's validation mechanism is far more reliable and secure than attempting to manually validate each input throughout your codebase.