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https://issues.apache.org/jira/browse/WICKET-4774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13549756#comment-13549756
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Carl-Eric Menzel commented on WICKET-4774:
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Heh, okay. That's what I get for not reading the patch ;-)
> Introduce read-only interface for PageParameters
> ------------------------------------------------
>
> Key: WICKET-4774
> URL: https://issues.apache.org/jira/browse/WICKET-4774
> Project: Wicket
> Issue Type: Improvement
> Components: wicket
> Affects Versions: 6.0.0
> Reporter: Martin Grigorov
> Fix For: 7.0
>
> Attachments: WICKET-4774.patch
>
>
> Cuurently org.apache.wicket.Page#getPageParameters() and
> org.apache.wicket.request.resource.IResource.Attributes#getParameters()
> return a mutable PageParameters. For the latter this is not a problem since
> it is not stored and reused for url generation.
> In the case with Page#getPageParameters() this instance is live until the
> page instance is alive. Some users make a mistake to modify the parameters
> (by using #add, #set, #remove) just to create an Url for some other page and
> later page's pageparameters are no more the real ones.
> We can improve that by introducing an interface with getter methods only.
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