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https://issues.apache.org/jira/browse/WICKET-3500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Igor Vaynberg resolved WICKET-3500.
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Resolution: Fixed
Fix Version/s: 1.4.17
Assignee: Igor Vaynberg
> Method AbstractMarkupParser.removeComment() causes an endless loop
> ------------------------------------------------------------------
>
> Key: WICKET-3500
> URL: https://issues.apache.org/jira/browse/WICKET-3500
> Project: Wicket
> Issue Type: Bug
> Components: wicket-core
> Affects Versions: 1.4.16
> Reporter: Georg Juttner
> Assignee: Igor Vaynberg
> Fix For: 1.4.17
>
> Attachments: WICKET-3500-2.patch
>
>
> The last change (see WICKET-3277) of method
> AbstractMarkupParser.removeComment() in Wicket 1.4.16 causes an endless loop
> if the markup contains conditional comments for IE.
> For example, the following string causes a loop in method removeComment()
> rawMarkup = "\r\n <!--[if IE 6]>\r\n "
> According to the following code snippet
> private String removeComment(String rawMarkup)
> {
> int pos1 = rawMarkup.indexOf("<!--");
> while (pos1 != -1)
> {
> int pos2 = rawMarkup.indexOf("-->", pos1 + 4);
> final StringBuilder buf = new
> StringBuilder(rawMarkup.length());
> if (pos2 != -1)
> {
> ...
> }
> pos1 = rawMarkup.indexOf("<!--", pos1);
> }
> return rawMarkup;
> }
> one can see that pos1 remains unchanged if pos2 == -1.
> The previous version in Wicket 1.4.15 doesn't have this defect. As a
> workaround set StripComments to false.
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