MapArray errors to map null/None value

[TKallem]

Describe the problem

I am trying to export Components field for Jira issues. In some issues, the components field value set from a value to null/empty/none in one of the revisions.

However when exporting the Components field, its failing to map the None value and produces the following error.
[E][11:48:36] Error mapping field 'Custom.Components' on item 'DSPUBI-2133'.
[System.ArgumentNullException] System.ArgumentNullException: Value cannot be null.

To Reproduce

Steps to reproduce the behavior:

1. Create a Jira user story
2. Set components field to a value and Save
3. Remove value for components field and Save
4. Set Components field to a value and Save
5. Run the export process

Tool version

• jira-azuredevops-migrator-3.0.422

Attachments

Please attach the following files:

jira-export-log-240613-114833.txt
config-agile.json

Screenshots

[Alexander-Hjelm]

Something likely is not working as expected with the Array mapper. All of the above repro steps are really helpful in troubleshooting this issue, so thanks for that!

Marking as a bug.

Have you tried to omit the following line in your field map?

"source-type": "name",

[TKallem]

Hi @Alexander-Hjelm ,

Haven't tried omitting the source-type but I have commented out a line of code in MapArray method where its checking for null and throwing the exception and added a line to return null. It seems to work fine for me now.

Thanks,
Thiru

[Alexander-Hjelm]

Hum, ok! Good catch. It feels like there might be a deeper underlying issue to this, so we might not want to create a PR with your fix right away.

Have you noticed anything about under what conditions the Array-type field becomes null?