Xporter export gets stuck at 90%. Process status never updated to FINISHED or ABORTED

Summary

Xporter exports (especially Test Execution reports with a large number of Test Runs) can get stuck at 90% indefinitely. The progress dialog never transitions to "finished" or "error", and the generated file never becomes available for download.

How to Reproduce

1. Configure Xporter 7.4.4-j10 on a Jira Data Center environment
2. Trigger an export for a Test Execution with many Test Runs (e.g. 40-80) using a Word template
3. Observe the progress dialog

Expected result: The export completes and the file is available for download.

Actual result: Intermittently, the progress dialog remains stuck at exactly 90% forever. No error is shown to the user. The browser polling continues indefinitely.

Affected Versions

• Xporter 7.4.4-j10 (confirmed)
• Likely affects other recent versions as well

Notes

• On the backend, the document generation phase does complete successfully ("Word export document finished" is logged).
• No exception is recorded in the logs.
• The XporterDocument record is never created in the database and the process status is never updated to FINISHED.