Broken Attachment Link in JIRA Activity Stream Gadget

Summary

Confluence attachment is rendered as a broken link when viewed in JIRA Activity Stream gadget from JIRA and Activity Stream gadget from Confluence.

Environment

• Confluence 6.1.0, 6.1.2
• JIRA 7.3.3, 7.3.5

Steps to Reproduce

1. Set up application links between JIRA and Confluence
2. Add attachment in an existing Confluence page
3. See JIRA Activity Stream gadget from JIRA Dashboard

Expected Results

The attachment is rendered correctly

Actual Results

• The attachment is rendered as a broken link
• Opening the attachment in a new tab will result in a System Error page with below error:

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)

Notes

• JIRA Activity Stream gadget can render the attachment correctly when JIRA 7.3.3 is integrated with Confluence 5.10.5
• The same URL is used for linking the attachment when integrated with Confluence 5.10.5 and 6.1.0, for example http://10.60.2.82:8090//download/attachments

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