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https://issues.apache.org/jira/browse/WICKET-6992?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17561060#comment-17561060
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ASF subversion and git services commented on WICKET-6992:
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Commit 60c24bc0194f83647e2b8277f6101ba98501b657 in wicket's branch 
refs/heads/wicket-9.x from Andrea Del Bene
[ https://gitbox.apache.org/repos/asf?p=wicket.git;h=60c24bc019 ]

WICKET-6992 fix for missing method CharSequence#isEmpty

> Reduce object creation and wasted memory in Url toString() methods
> ------------------------------------------------------------------
>
>                 Key: WICKET-6992
>                 URL: https://issues.apache.org/jira/browse/WICKET-6992
>             Project: Wicket
>          Issue Type: Improvement
>    Affects Versions: 10.0.0, 9.11.0
>            Reporter: Andrea Del Bene
>            Assignee: Andrea Del Bene
>            Priority: Minor
>             Fix For: 10.0.0, 9.11.0
>
>
> The processing for toString() in the Url class is a bit expensive. I think we 
> can do better by using String concatenation, avoiding copying byte[]/char[] 
> arrays, and sizing StringBuilders effectively.
> More could be done to improve this, but these changes are not too aggressive. 
> Ideally a common StringBuilder would be passed around, like the charset, to 
> accumulate the String as processing is done.



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