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http://www.stripesframework.org/jira/browse/STS-752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Frederic Daoud resolved STS-752.
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Resolution: Not a Bug
@Validate(required=true) checks for a value up front. Only if the value is not
null is the type converter invoked. There are use cases where you want to
return null from a type converter without a validation error. If you want a
validation error, report it within the type converter.
> @Validate(required=true) only applies to parameters pre-conversion
> ------------------------------------------------------------------
>
> Key: STS-752
> URL: http://www.stripesframework.org/jira/browse/STS-752
> Project: Stripes
> Issue Type: Bug
> Components: Validation
> Reporter: Aaron Porter
> Assignee: Aaron Porter
> Priority: Minor
> Fix For: Release 1.6
>
>
> Validation for required parameters passes when a parameter is not null and
> not empty even if the type converter returns null. It seems that if a
> property is marked with @Validate(required=true) then the type converter
> returning null should trigger a validation error.
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