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https://issues.apache.org/jira/browse/JSPWIKI-936?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15241750#comment-15241750
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Harry Metske commented on JSPWIKI-936:
--------------------------------------
The error that occurs is
{noformat}
JSPWiki has detected an error
Error Message
Refmgr out of sync: page Test refers to Test/fstab, which has null
referrers.
Exception
org.apache.wiki.InternalWikiException
Place where detected
org.apache.wiki.ReferenceManager.pageRemoved(), line 625
If you have changed the templates, please do check them. This error message may
show up because of that. If you have not changed them, and you are either
installing JSPWiki for the first time or have changed configuration, then you
might want to check your configuration files. If you are absolutely sure that
JSPWiki was running quite okay or you can't figure out what is going on, then
by all means, come over to jspwiki.apache.org and tell us. There is more
information in the log file (like the full stack trace, which you should add to
any error report).
And don't worry - it's just a computer program. Nothing really serious is
probably going on: at worst you can lose a few nights sleep. It's not like it's
the end of the world.
{noformat}
The doc:
http://jspwiki.apache.org/apidocs/2.10.2/org/apache/wiki/ReferenceManager.html#findRefersTo(java.lang.String)
however, states that the returned Collection is immutable.
The patch, however, does fix the problem, any thoughts?
> error when remove page with link
> --------------------------------
>
> Key: JSPWIKI-936
> URL: https://issues.apache.org/jira/browse/JSPWIKI-936
> Project: JSPWiki
> Issue Type: Bug
> Components: Core & storage
> Affects Versions: 2.10.2
> Environment: Windows 8.1, Java 8u45
> Reporter: Andrew Krasnoff
>
> # Login
> # Create new page
> # Then click Attach, select file and click Upload
> # Edit the page and specify link to attached file name on page content -
> [attached_file_name.png] in my case. Click Save
> Click Info and click "Delete Entire Page", click "Confirm" at confirmation
> popup
> => get error
> To make a temporary fix I updated "WikiEngine.deletePage" method with the
> following code:
> {code:java}
> public void deletePage( String pageName )
> throws ProviderException
> {
> WikiPage p = getPage( pageName );
> if( p != null )
> {
> if( p instanceof Attachment )
> {
> m_attachmentManager.deleteAttachment( (Attachment) p );
> }
> else
> {
> Collection<String> refTo =
> m_referenceManager.findRefersTo(pageName);
> if (m_attachmentManager.hasAttachments( p ))
> {
> Collection attachments =
> m_attachmentManager.listAttachments( p );
> for( Iterator atti = attachments.iterator();
> atti.hasNext(); )
> {
> Attachment attachment = (Attachment)atti.next();
> refTo.remove(attachment.getName());
> m_attachmentManager.deleteAttachment( attachment );
> }
> }
> m_pageManager.deletePage( p );
> firePageEvent( WikiPageEvent.PAGE_DELETED, pageName );
> }
> }
> }
> {code}
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