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https://issues.apache.org/struts/browse/SHALE-406?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ingo Dueppe updated SHALE-406:
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Component/s: Core
> ConverterHelper produce NullPointerException by calling Converter with
> uiComponent = null parameter during restore view phase.
> ------------------------------------------------------------------------------------------------------------------------------
>
> Key: SHALE-406
> URL: https://issues.apache.org/struts/browse/SHALE-406
> Project: Shale
> Issue Type: Bug
> Components: Core, View
> Affects Versions: 1.0.4
> Environment: Facelets 1.1.12, MyFaces 1.1.5-SNAPSHOT , Tomahawk
> 1.1.5-SNAPSHOT
> Reporter: Ingo Dueppe
>
> I had an backing bean class with the following property:
> @Property{value="#{param.enrollmentId}")
> private Long enrollmentId;
> And this ends up that shale calls the
> getAsObject method javax.faces.convert.LongConverter of
> MyFaces-1.1.5-SNAPSHOT during the restore view phase .
> This method expects an uiComponent not null otherwise it throws a
> NullPointerException. But this method is called by the
> org.apache.shale.util.ConverterHelper during create view and therefore
> the facesContext setViewRoot is still null. So the below code of the
> ConverterHelper
> end ups in a NullPointerException in this situation.
> public Object asObject(FacesContext context, Class type, String value) {
> if (String.class == type) {
> return value;
> }
> return converter(context,
> type).getAsObject(context,context.getViewRoot(), value);
> }
> There are also some other parts in the ConverterHelper class that depends on
> that viewRoot is not null.
> Well the jsf - 1.1 spec says that the getAsObject method is called during the
> apply request values phase.
> As far as I understood it myfaces doesn't use the converter to initialize the
> beans also. Instead it uses the Coercions class of common-el to convert
> #{param.enrollmentId}.
> Btw.: As workaround, define your own ConverterClass that can handle that the
> component parameter is null.
> - Ingo
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