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https://issues.apache.org/jira/browse/TAP5-784?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Zeigler reassigned TAP5-784:
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Assignee: Robert Zeigler
> Exception message when componentClassName is unknown should be clearer
> ----------------------------------------------------------------------
>
> Key: TAP5-784
> URL: https://issues.apache.org/jira/browse/TAP5-784
> Project: Tapestry 5
> Issue Type: Improvement
> Affects Versions: 5.1.0.5
> Reporter: Robert Zeigler
> Assignee: Robert Zeigler
> Priority: Minor
>
> If you do something like:
> <input t:id="myfield" .../>
> And you forget to specify the type in the template, and you don't specify the
> type via @Component in the containing page/component class, you get an
> exception:
> Failure creating embedded component 'xxx' of <pagename>:
> java.lang.NullPointerException
> with a stack trace pointing down somewhere in the class loader. Basically,
> PageLoaderImpl.startComponent assumes that either embeddedModel is not null,
> or token.getType() is not null, without ever checking that assumption.
> Tapestry should check the assumption and throw an exception if it is violated.
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