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https://issues.apache.org/jira/browse/WICKET-6963?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17529327#comment-17529327
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ASF subversion and git services commented on WICKET-6963:
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Commit 30193b9bda07906d50cd1f5736d9529f568816f9 in wicket's branch
refs/heads/wicket-9.x from Thomas Heigl
[ https://gitbox.apache.org/repos/asf?p=wicket.git;h=30193b9bda ]
WICKET-6963 Singleton markup sourcing strategy (Take 2) (#517)
* Revert "Revert "WICKET-6963 Use singletons for PanelMarkupSourcingStrategy
(#503)""
This reverts commit 85fab8969a694b46c5b5ea59a37e21f4e0317a00.
* WICKET-6963 Remove `noMoreWicketHeadTagsAllowed` from
AssociatedMarkupSourcingStrategy
(cherry picked from commit 76685914cdad327afa41ecd7c2d3820297c1c092)
> Use singletons for PanelMarkupSourcingStrategy
> ----------------------------------------------
>
> Key: WICKET-6963
> URL: https://issues.apache.org/jira/browse/WICKET-6963
> Project: Wicket
> Issue Type: Improvement
> Components: wicket-core
> Affects Versions: 9.8.0
> Reporter: Thomas Heigl
> Assignee: Thomas Heigl
> Priority: Major
> Fix For: 10.0.0, 9.9.0, 9.9.1, 9.10.0
>
> Attachments: image-2022-03-21-18-21-51-613.png
>
>
> My latest heapdump contained millions of instances of
> {{{}PanelMarkupSourcingStrategy{}}}:
> !image-2022-03-21-18-21-51-613.png|width=839,height=24!
> This class is completely stateless and only takes a single boolean
> constructor parameter. We should replace current instances by a factory
> method and two singletons.
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