FormComponent.add(IValidator<T>) should probably accept IValidator<? super T>
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Key: WICKET-2849
URL: https://issues.apache.org/jira/browse/WICKET-2849
Project: Wicket
Issue Type: Bug
Components: wicket
Affects Versions: 1.4.7
Reporter: Emond Papegaaij
Priority: Minor
For example, a validator for Number, is able to validate all subtypes of Number
(such as Integer or BigDecimal). The principal is the same as for Comparator,
methods such as Collections.sort always take ? super T.
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