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https://issues.apache.org/jira/browse/TAP5-2773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17834551#comment-17834551
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ASF subversion and git services commented on TAP5-2773:
-------------------------------------------------------

Commit 19bbf35c3fac3358ba1703227fa6023766904eec in tapestry-5's branch 
refs/heads/javax from Thiago H. de Paula Figueiredo
[ https://gitbox.apache.org/repos/asf?p=tapestry-5.git;h=19bbf35c3 ]

TAP5-2773: NPE when production mode on and template overrides

> NullPointerException in 5.8.5 when in production mode and template extension 
> points
> -----------------------------------------------------------------------------------
>
>                 Key: TAP5-2773
>                 URL: https://issues.apache.org/jira/browse/TAP5-2773
>             Project: Tapestry 5
>          Issue Type: Bug
>          Components: tapestry-core
>    Affects Versions: 5.8.5
>            Reporter: Thiago Henrique De Paula Figueiredo
>            Priority: Major
>
> Caused by: org.apache.tapestry5.commons.internal.util.TapestryException: 
> Failure creating embedded component 'componentB' of de.... 
> ui.components.Index: org.apache.tapestry5.ioc.internal.OperationException [at 
> classpath:de/.../ui/components/index.tml, line 6]
>       at 
> org.apache.tapestry5.internal.pageload.ComponentAssemblerImpl.createEmbeddedAssembler(ComponentAssemblerImpl.java:333)
>       at 
> org.apache.tapestry5.internal.pageload.PageLoaderImpl.startComponent(PageLoaderImpl.java:819)
> Caused by: org.apache.tapestry5.ioc.internal.OperationException
>       at 
> org.apache.tapestry5.ioc.internal.OperationTrackerImpl.logAndRethrow(OperationTrackerImpl.java:196)
>       at 
> org.apache.tapestry5.ioc.internal.OperationTrackerImpl.handleRuntimeException(OperationTrackerImpl.java:138)
>       at 
> org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:90)
> Caused by: java.lang.NullPointerException
>       at 
> org.apache.tapestry5.internal.plastic.PlasticClassPool.createTransformation(PlasticClassPool.java:532)
>       at 
> org.apache.tapestry5.internal.plastic.PlasticClassPool.getPlasticClassTransformation(PlasticClassPool.java:492)
>       at 
> org.apache.tapestry5.internal.plastic.PlasticClassPool.loadAndTransformClass(PlasticClassPool.java:399)
>       at 
> org.apache.tapestry5.internal.plastic.PlasticClassLoader.loadClass(PlasticClassLoader.java:59)
> public class ComponentA extends CompentB { ... }
> public class abstract ComponentB { ... }
> ComponentA.tml
> <!DOCTYPE html>
> <t:extend     xmlns:t="http://tapestry.apache.org/schema/tapestry_5_4.xsd"; 
> xmlns:p="tapestry:parameter">
>       <t:replace id="details">xxx</t:replace>
> </t:extends>
> ComponentB.tml
> <!DOCTYPE html> 
> <t:container xmlns:t="http://tapestry.apache.org/schema/tapestry_5_4.xsd"; 
> xmlns:p="tapestry:parameter">
>       ...
>       <t:extension-point id="details"></t:extension-point>
>       ...
> </t:container>



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