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https://issues.apache.org/jira/browse/WICKET-5837?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14321468#comment-14321468
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Andrea Del Bene commented on WICKET-5837:
-----------------------------------------
Thank you once again Tobias!
> JUnit tests may fail because of AbstractDefaultAjaxBehavior
> -----------------------------------------------------------
>
> Key: WICKET-5837
> URL: https://issues.apache.org/jira/browse/WICKET-5837
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 6.20.0, 7.0.0-M6
> Reporter: Tobias Soloschenko
> Assignee: Andrea Del Bene
> Labels: test
>
> Because JSONObject is used in the method
> org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.renderAjaxAttributes(Component,
> AjaxRequestAttributes)
> which internally uses a HashMap to store the key value pairs - see
> org.apache.wicket.ajax.json.JSONObject.JSONObject() - it is not ensured the
> attributes rendered in a specific order. This can cause the unit tests to
> pass in one run and fail in the next run.
> One suggestion would be to switch the HashMap and replace it with at
> LinkedHashMap to preserve the insertion order.
> See stack trace in comment.
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