Issue Summary

When issues have null priorities, the project migration fails.

Steps to Reproduce

One way to reproduce this problem is to create a new issue and remove the priority directly from the Jira database. There might be other ways to run into this issue though.

Expected Results

Migration succeeds by assigning a default priority value to issues with missing priority.

Actual Results

The project migration completes with a FAILED status.

Workaround

Option 1

1. Run this JQL

   priority is null

1. This will show all issues with missing priority
2. Bulk update the issues to have a priority value.

Option 2

1. Go to the Jira database and assign priorities to all issues with null priorities.
2. Sample SQL to make the change (might not work for all database types):

   update jiraissue set priority=2 where id in (select id from jiraissue where priority is null);

   (make sure to update the priority value accordingly)

Option 3

1. If the project has a priority scheme with default priority enabled. direction as given below.
2.  Then, enable this feature flag (com.atlassian.jira.migration.assign.default.issue.priority) so that JCMA will set the default priority whenever an issue found with null or empty priority.  Please refer to this document https://confluence.atlassian.com/jirakb/enable-dark-feature-in-jira-959286331.html to add feature flags.