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https://issues.apache.org/jira/browse/MYFACES-3988?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14519560#comment-14519560
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Mike Kienenberger commented on MYFACES-3988:
--------------------------------------------
Would you mind reposting your question on [email protected] so it can be
discussed? Also, is your Glassfish/Wildfly container using Mojarra as the JSF
implementation?
If nothing else, MyFaces could provide a configuration parameter which would
ignore empty render type tag contents and continue onward.
> An empty tag in a custom tag-lib causes an Exception
> ----------------------------------------------------
>
> Key: MYFACES-3988
> URL: https://issues.apache.org/jira/browse/MYFACES-3988
> Project: MyFaces Core
> Issue Type: Bug
> Components: JSR-344
> Affects Versions: 2.2.8
> Reporter: Christopher Meyer
> Priority: Minor
>
> While developing a custom tag library we added an empty renderer-type tag
> like this:
> <tag>
> <tag-name>myinput</tag-name>
> <component>
> <component-type>my.test.MyInput</component-type>
> <renderer-type></renderer-type>
> </component>
> </tag>
> This causes the following exception:
> Caused by: java.lang.Exception: Value Cannot be Empty
> at
> org.apache.myfaces.view.facelets.compiler.TagLibraryConfigUnmarshallerImpl$LibraryHandler.endElement(TagLibraryConfigUnmarshallerImpl.java:395)
> at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown
> Source)
> at
> org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
> at
> org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
> Source)
> ...
> This appears to be expected based on the code in
> TagLibraryConfigUnmarshallerImpl. From what I can see the exception appears
> to be thrown on elements which are used in another spot. If any of them are
> empty they will throw the above exception. Wildfly/Glassfish does not have
> the same behavior, so my assumption is they just ignore it.
> Should the MyFaces code be modified to just continue on without the
> exception, based on the reference implementation? I can quickly create
> something if so, I just wanted to bring this up to the community at large
> since I don't know the reasoning behind the difference of the implementations.
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