Unable to open confluence attachment via jira Activity stream

[Leena Bakshi]

Hi,

Post upgrade confluence, I noticed that if I add any file to a page in confluence. I see the notification in Jira under Activity Stream Gadget. Where it tells us that certain user has attached a file to a certain page. but when I click on it it gives me system error by taking me to confluence. I get the following System Error:

The application links are fine, I have already reindexed jira and confluence both. have built indexes from scratch, cleared the plugin cache in confluence post upgrade. Any idea?

If I go on confluence directly, the attachment opens without any issues. Problem is coming when I am clicking on the attachment in activity stream of jira, whether its a txt or pdf or excel..

Support cannot assist because of the weekend and my upgrade window is weekend only.

Thanks

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 System Error

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Cause

java.lang.NullPointerException
    at com.atlassian.confluence.servlet.download.AttachmentDownload.getStreamForDownload(AttachmentDownload.java:105)

Stack Trace:[hide]

java.lang.NullPointerException
	at com.atlassian.confluence.servlet.download.AttachmentDownload.getStreamForDownload(AttachmentDownload.java:105)
	at com.atlassian.confluence.servlet.download.ServeAfterTransactionDownload$StreamResultCallback.doInTransaction(ServeAfterTransactionDownload.java:110)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:133)
	at com.atlassian.confluence.servlet.download.ServeAfterTransactionDownload.getStreamInTransaction(ServeAfterTransactionDownload.java:36)
	at com.atlassian.confluence.servlet.download.ServeAfterTransactionDownload.serveFile(ServeAfterTransactionDownload.java:42)
	at com.atlassian.plugin.servlet.AbstractFileServerServlet.doGet(AbstractFileServerServlet.java:28)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:292)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at com.atlassian.confluence.web.filter.DebugFilter.doFilter(DebugFilter.java:46)
	at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:240)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:207)
	at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:39)
	at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:58)
	at com.atlassian.confluence.image.effects.ImageFilterFilter.doFilter(ImageFilterFilter.java:63)
	at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:64)
	at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37)
	at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:58)
	at com.atlassian.confluence.plugins.baseurl.IncludeResourcesFilter.doFilter(IncludeResourcesFilter.java:42)
	at com.atlassian.core.filters.AbstractHttpFilter.doFilter(AbstractHttpFilter.java:31)
	at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:64)
	at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37)
	at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:58)
	at com.atlassian.labs.botkiller.BotKillerFilter.doFilter(BotKillerFilter.java:36)
	at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:64)
	at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37)
	at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:58)
	at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:24)
	at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:64)
	at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37)
	at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:58)
	at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:24)
	at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:64)
	at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37)
	at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:58)
	at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:24)
	at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java:64)
	at com.atlassian.plugin.servlet.filter.IteratingFilterChain.doFilter(IteratingFilterChain.java:37)
	at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter$1.doFilter(DelegatingPluginFilter.java:58)
	at com.atlassian.applinks.core.rest.context.ContextFilter.doFilter(ContextFilter.java:24)
	at com.atlassian.plugin.servlet.filter.DelegatingPluginFilter.doFilter(DelegatingPluginFilter.java

[Amirul Ikhwan Omar · Accepted solution]

This is existing bug https://jira.atlassian.com/browse/CONFSERVER-52102. The workaround mentions are 

Workaround

Open the attachment link in a new tab and remove one of the 2 forward slashes between the Base URL and download/attachments. E.g. from:

• http://10.60.2.82:8090//download/attachments

to

• http://10.60.2.82:8090/download/attachments

[Leena Bakshi]

Thanks Amirul, I did find this bug listed however its really not that convenient workaround to suggest to end user. But I guess thats what it is for now.

Thanks again