JENKINS-56510, when selecting "Warnings Plugin Native Format" as "Tool" the "Warning NG Plugins" should import an xml exported by the API:
The problem is that this API exports the report of issues as:
And the plugin expect "report/issue" as xmlIssueRoot (sort of x-path query) to find the issues.
In other words this can be imported:
The issue is that the root element is called reportApi in the exported xml and report is expected for the import
Tested with version 5.1.0