Uploaded attachments can't be viewed and downloaded attachments give network error
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Problem
Uploaded attachments cannot be displayed.
Preview shows an Ouch! We can't load the image. message.
Downloaded attachments generate a network error.
The following appears in the atlassian-confluence.log
atlassian-confluence.log
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2016-04-07 14:34:48,501 ERROR [http-nio-8090-exec-6] [[Standalone].[localhost].[/].[file-server]] log Servlet.service() for servlet [file-server] in context with path [] threw exception
java.lang.NullPointerException
at com.atlassian.confluence.importexport.resource.ExportDownloadResourceManager.getExportRoot(ExportDownloadResourceManager.java:99)
at com.atlassian.confluence.importexport.resource.ExportDownloadResourceManager.matches(ExportDownloadResourceManager.java:31)
at com.atlassian.confluence.importexport.resource.DelegatorDownloadResourceManager.getResourceReaderFromDelegate(DelegatorDownloadResourceManager.java:67)
at com.atlassian.confluence.importexport.resource.DelegatorDownloadResourceManager.getResourceReader(DelegatorDownloadResourceManager.java:30)
at com.atlassian.confluence.servlet.download.AttachmentDownload.getStreamForDownload(AttachmentDownload.java:71)
...Cause
The parameter
<property name="webwork.multipart.saveDir">${confluenceHome}/temp</property>
is missing from confluence.cfg.xml.
Resolution
Shut down Confluence
Edit <local-home>
/confluence.cfg.xmland add (or edit to match) the lineconfluence.cfg.xml
1<property name="webwork.multipart.saveDir">${localHome}/temp</property>Restart Confluence.
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