[jira] [Commented] (JSPWIKI-742) ERROR [com.ecyrd.jspwiki.tags.WikiTagBase] Tag failed: java.lang.NullPointerException

[JIRA]

    [ 
https://issues.apache.org/jira/browse/JSPWIKI-742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13529214#comment-13529214
 ] 

Juan Pablo Santos Rodríguez commented on JSPWIKI-742:
-----------------------------------------------------

why not 

{code:java}CopyOnWriteArrayList<Item> m_elements = new 
CopyOnWriteArrayList<Item>();{code} 

and then removing the casts on lines 58 & 94?


br,
juan pablo
                
> ERROR [com.ecyrd.jspwiki.tags.WikiTagBase] Tag failed: 
> java.lang.NullPointerException
> -------------------------------------------------------------------------------------
>
>                 Key: JSPWIKI-742
>                 URL: https://issues.apache.org/jira/browse/JSPWIKI-742
>             Project: JSPWiki
>          Issue Type: Bug
>    Affects Versions: 2.8.3
>         Environment: RHEL_6.1
>            Reporter: RAJESHWARAN
>         Attachments: JSPWiki-742.patch, TestArrayListNPE.java
>
>
> Hello,
> I had used jspwiki2.8.3, i got the following error and the pages were 
> displayed with an empty content.
> After restarting the apache in the site ,the jspwiki pages got displayed with 
> contents and no errors were thrown.I'm sure this error was thrown from 
> jspwiki code. could anyone know about this error?
> ERROR [com.ecyrd.jspwiki.tags.WikiTagBase] Tag failed: 
> java.lang.NullPointerException
>         at com.ecyrd.jspwiki.util.PriorityList.get(PriorityList.java:96) [:]
>         at java.util.AbstractList$Itr.next(AbstractList.java:345) [:1.6.0_26]
>         at 
> com.ecyrd.jspwiki.filters.FilterManager.doPreTranslateFiltering(FilterManager.java:324)
>  [:]
>         at com.ecyrd.jspwiki.WikiEngine.textToHTML(WikiEngine.java:1511) [:]
>         at com.ecyrd.jspwiki.WikiEngine.getHTML(WikiEngine.java:1455) [:]
>         at 
> com.ecyrd.jspwiki.tags.InsertPageTag.doWikiStartTag(InsertPageTag.java:128) 
> [:]
>         at com.ecyrd.jspwiki.tags.WikiTagBase.doStartTag(WikiTagBase.java:89) 
> [:]

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