ValidationListener (java-security 2.7.4 API)

```
public interface ValidationListener
```
Implement this interface to register custom validation listener to the CombiningValidator. Those classes will be called whenever a token is being validated.
This might be relevant for writing Audit logs.

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`void`	`onValidationError(ValidationResult result)`
`void`	`onValidationSuccess()`

void onValidationError(ValidationResult result)

Interface ValidationListener