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Posted to dev@myfaces.apache.org by "Jan-Kees van Andel (JIRA)" <de...@myfaces.apache.org> on 2010/07/03 20:51:50 UTC

[jira] Created: (MYFACES-2784) NPE when I forget to add an interface to a composite component

NPE when I forget to add an interface to a composite component
--------------------------------------------------------------

                 Key: MYFACES-2784
                 URL: https://issues.apache.org/jira/browse/MYFACES-2784
             Project: MyFaces Core
          Issue Type: Bug
            Reporter: Jan-Kees van Andel


When I write a composite component like the following:

<?xml version="1.0" encoding="UTF-8"?>
<ui:composition ...>
        <div>
            <h2>Spaces</h2>
            <ul>
                <ui:repeat value="#{spacesBean.spaces}" var="space">
                    <li>
                        <parleys:spaceLink space="#{space}" renderThumbnail="true" renderLabel="true"/>
                    </li>
                </ui:repeat>
            </ul>
        </div>
</ui:composition>

I get a NPE on line 1101 in ApplicationImpl, because there is no component metadata. Of course I made a mistake here, but a NPE isn't very helpful. :)

There is a "SEVERE: Cannot found composite bean descriptor UIComponent.BEANINFO_KEY" in the logs, but it's swallowed by a huge stack trace.

I suggest to throw a descriptive exception instead of logging the message.

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[jira] Resolved: (MYFACES-2784) NPE when I forget to add an interface to a composite component

Posted by "Jakob Korherr (JIRA)" <de...@myfaces.apache.org>.
     [ https://issues.apache.org/jira/browse/MYFACES-2784?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jakob Korherr resolved MYFACES-2784.
------------------------------------

    Fix Version/s: 2.0.1-SNAPSHOT
       Resolution: Fixed

> NPE when I forget to add an interface to a composite component
> --------------------------------------------------------------
>
>                 Key: MYFACES-2784
>                 URL: https://issues.apache.org/jira/browse/MYFACES-2784
>             Project: MyFaces Core
>          Issue Type: Bug
>            Reporter: Jan-Kees van Andel
>            Assignee: Jakob Korherr
>             Fix For: 2.0.1-SNAPSHOT
>
>
> When I write a composite component like the following:
> <?xml version="1.0" encoding="UTF-8"?>
> <ui:composition ...>
>         <div>
>             <h2>Spaces</h2>
>             <ul>
>                 <ui:repeat value="#{spacesBean.spaces}" var="space">
>                     <li>
>                         <parleys:spaceLink space="#{space}" renderThumbnail="true" renderLabel="true"/>
>                     </li>
>                 </ui:repeat>
>             </ul>
>         </div>
> </ui:composition>
> I get a NPE on line 1101 in ApplicationImpl, because there is no component metadata. Of course I made a mistake here, but a NPE isn't very helpful. :)
> There is a "SEVERE: Cannot found composite bean descriptor UIComponent.BEANINFO_KEY" in the logs, but it's swallowed by a huge stack trace.
> I suggest to throw a descriptive exception instead of logging the message.

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You can reply to this email to add a comment to the issue online.