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https://issues.apache.org/jira/browse/WICKET-2849?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Igor Vaynberg reopened WICKET-2849:
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whoops, change meant for another issue
> FormComponent.add(IValidator<T>) should probably accept IValidator<? super T>
> -----------------------------------------------------------------------------
>
> 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
> Assignee: Igor Vaynberg
> Priority: Minor
> Fix For: 1.4.11, 1.5-M2
>
>
> 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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