Problem

The Jira application generates a blank import log page after performing a CSV import via the menu ⚙ > System > External System Import.

No errors in logs could indicate a Log4J issue, as issue is reproducible only in Jira versions using Log4j2.

Environment

Jira Server/DC 9.5+ running on a Windows Server

Note

This issue is not replicable on a Linux Server for any Jira version on 9.5+. If you are facing this issue with Jira running on a Linux Server, then we recommend checking the KB article https://confluence.atlassian.com/jirakb/the-jira-application-generates-a-blank-import-log-page-after-performing-a-csv-or-json-import-1416829419.html as it might be relevant.

This issue is no longer replicable on a Windows Server with Jira 9.11.0+

Steps to Reproduce

1. Go to Jira import wizard > CSV and perform an import
2. After the import is complete, click on "download a detailed log" of this import

Expected Results

• A new window will open with <Jira_Base_URL>/rest/jira-importers-plugin/1.0/importer/com.atlassian.jira.plugins.jira-importers-plugin:csvImporter/log and show the detailed log for the import

Actual Results

• It opens a blank window for <Jira_Base_URL>/rest/jira-importers-plugin/1.0/importer/com.atlassian.jira.plugins.jira-importers-plugin:csvImporter/log, no content is showed.

Workaround

Since the bug is no longer replicable on Jira 9.11.0 and higher when Jira is running on a Windows server, we recommend upgrading Jira to this version of any higher version.