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https://issues.apache.org/jira/browse/JSPWIKI-879?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14485177#comment-14485177
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David Vittor commented on JSPWIKI-879:
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Hi Nathan, are you using and custom plugins or filters? I've found that
Pattern.match() / StackOverlow error before in a plugin.
> prettify fails on 6th declaration
> ---------------------------------
>
> Key: JSPWIKI-879
> URL: https://issues.apache.org/jira/browse/JSPWIKI-879
> Project: JSPWiki
> Issue Type: Bug
> Components: Plugins
> Affects Versions: 2.10.1
> Environment: tomcat 8.0.21, ibm java 8, AIX 6.1 JSPWiki 2.10.1
> Reporter: Nathan Revo
> Priority: Minor
>
> I am upgrading from an older version of JSPWiki and figured we didn't have
> anything special in our pages so I re-used the existing setup. When I visit
> a few of the existing pages with many "prettify" tags the page blows up with
> the message: "Tag failed
> javax.servlet.jsp.JspException: WikiContext may not be NULL - serious
> internal problem!" followed by "Error.jsp exception is:
> java.lang.StackOverflowError
> at java.util.regex.Pattern$Branch.match(Pattern.java:4615)
> "
> if I change the pages to include 5 or less %%pretify the errors go away.
> I can
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