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https://issues.apache.org/jira/browse/JSPWIKI-572?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12725088#action_12725088
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Wouter Van daele commented on JSPWIKI-572:
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About the "empty entries" in the output: can this be caused by the fact that
the IndexPlugin uses a default exclusion pattern "\\p{Cntrl}" which is US-ASCII
only (see the official API documentation for Java 1.4 and up)? The wiki
mentioned by Bruno is configured to be UTF-8, and some of the pages have
non-ASCII characters in their name...
I was going to propose the use of "getAllPages()" when no inclusion/exclusion
parameters are specified, but for larger page collections there might be a
performance hit by not using the ReferenceManager (and then again: the
ReferenceManager isn't necessarily the best reference on this subject if I
understand the class comments correctly).
> IndexPlugin does not list all pages
> -----------------------------------
>
> Key: JSPWIKI-572
> URL: https://issues.apache.org/jira/browse/JSPWIKI-572
> Project: JSPWiki
> Issue Type: Bug
> Components: Plugins
> Affects Versions: 2.8.2
> Environment: JSPWIKI 2.8.2 with websphere running on AIX
> Reporter: Bruno Peeters
> Attachments: test-combinations.jpg, test-pageindex-empty.jpg,
> test-pageindex.jpg
>
>
> We have noticed that the IndexPlugin does not list all pages with the wiki.
> We discovered this because two users (from other divisions) both created a
> page with a very similar name, the first one in capitals, the other one with
> only one letter in lower case.
> I was able to reproduce this problem. I created all 16 combinations of upper
> and lower case for the word "TEST" (see attachment). This resulted in 8
> different wiki pages. Only 6 of them are listed in the output of the
> IndexPlugin (see attachment).
> We have noticed another strange behaviour of the IndexPlugin, perhaps related
> to the same cause. In the output of this plugin, there are empty entries
> appearing : <entry1>, , <entry2>. What even makes it stranger is that these
> empty entries are appearing at random places. After a refresh of the
> pageindex page in the browser, the empty entries occur at another place in
> the document. Sometimes there are no such empty entries, sometimes there is
> only one, and sometimes there are several (mostly 2). Luckily this behaviour
> reproduced itself for the "test" pages I created (see above). It looks that
> the empty entries are "real" pages which aren't listed.
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