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Posted to dev@causeway.apache.org by "Andi Huber (Jira)" <ji...@apache.org> on 2026/06/03 09:31:00 UTC

[jira] [Updated] (CAUSEWAY-4008) [Wicket Viewer] NPE in ParentedCollectionPanel

     [ https://issues.apache.org/jira/browse/CAUSEWAY-4008?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andi Huber updated CAUSEWAY-4008:
---------------------------------
    Summary: [Wicket Viewer] NPE in ParentedCollectionPanel  (was: [Wicket Viewer] NPE in ParentedCollectionPane)

> [Wicket Viewer] NPE in ParentedCollectionPanel
> ----------------------------------------------
>
>                 Key: CAUSEWAY-4008
>                 URL: https://issues.apache.org/jira/browse/CAUSEWAY-4008
>             Project: Causeway
>          Issue Type: Bug
>          Components: Viewer Wicket
>            Reporter: Andi Huber
>            Assignee: Andi Huber
>            Priority: Major
>             Fix For: 4.0.0
>
>
> Caused by: {*}java.lang.NullPointerException{*}: Cannot invoke "java.util.Optional.ifPresent(java.util.function.Consumer)" because "this.tableDecorator" is null
> at org.apache.causeway.viewer.wicket.ui.components.collection.parented.ParentedCollectionPanel#renderHead(ParentedCollectionPanel.java:121)
> at org.apache.wicket.Component#internalRenderHead(Component.java:2663)
> at org.apache.wicket.markup.renderStrategy.ChildFirstHeaderRenderStrategy$1#component(ChildFirstHeaderRenderStrategy.java:85)



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