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https://issues.apache.org/jira/browse/TAP5-736?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jochen Kemnade updated TAP5-736:
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Affects Version/s: 5.4
> TextField validate parameter allows Null, but throws NPE
> --------------------------------------------------------
>
> Key: TAP5-736
> URL: https://issues.apache.org/jira/browse/TAP5-736
> Project: Tapestry 5
> Issue Type: Bug
> Components: tapestry-core
> Affects Versions: 5.4, 5.1.0.5
> Reporter: Lukasz Jazgar
> Labels: patch
> Attachments:
> 0004-TAP5-736-TextField-validate-parameter-allows-Null-bu.patch
>
>
> Component TextField has parameter "validate" annotated by
> @Parameter(defaultPrefix = BindingConstants.VALIDATE)
> There is no attribute allowNull, but it has default value "true"
> (http://tapestry.apache.org/tapestry5.1/apidocs/org/apache/tapestry5/annotations/Parameter.html#allowNull()).
>
> So null value is allowed according to specification.
> But if you set parameter validate to null, NullPointerException is thrown
> from AbstractTextProperties.begin(MarkupWriter writer), line: 173.
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