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From "Harry Metske (JIRA)" <j...@apache.org>
Subject [jira] Commented: (JSPWIKI-644) When a page was modified externally and is read by a plugin via WikiEngine.getPage(..) during intialization a NPE is thrown
Date Wed, 07 Apr 2010 16:29:35 GMT

    [ https://issues.apache.org/jira/browse/JSPWIKI-644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12854583#action_12854583
] 

Harry Metske commented on JSPWIKI-644:
--------------------------------------

Any comments on this one ?
If not, I will patch it in both 2.8 and trunk.

> When a page was modified externally and is read by a plugin via WikiEngine.getPage(..)
during intialization a NPE is thrown
> ---------------------------------------------------------------------------------------------------------------------------
>
>                 Key: JSPWIKI-644
>                 URL: https://issues.apache.org/jira/browse/JSPWIKI-644
>             Project: JSPWiki
>          Issue Type: Bug
>          Components: Core & storage, Plugins
>    Affects Versions: 2.8.3
>         Environment: This happens on all kinds of plattforms (tested on MacOS 10/Gentoo/Debian/Windows)
>            Reporter: Fabian Haupt
>            Priority: Minor
>
> Our plugin extends  BasicPageFilter and implements  WikiPlugin and WikiEventListener.
During the initialisation of the wikisystem we are getting the source of a specific page.
(some settings are stored there). 
> This works quite well most of the time. But when this page was externally modified (by
editor...) the call to getPage(..) results in a null result. I've traced it down to the location
of it happening: in the class WikiEngine, the methoed
> private String textToHTML( WikiContext context, String pagedata, StringTransmutator localLinkHook,
>                                StringTransmutator extLinkHook, StringTransmutator attLinkHook,
boolean parseAccessRules,
>                                boolean justParse )
> calls 
> pagedata = m_filterManager.doPreTranslateFiltering( context, pagedata ); 
> in line 1615
> at this point the m_filterManager isn't initialized yet, therefore resulting in an NPE.

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