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Known Issue: Citrix XenApp agent may fail with error when delivery group has no users: "Object reference not set to an instance of an object" (IOJ-2228355)

Summary

If an application is assigned in Citrix XenApp to a delivery group that has no users, the XenApp agent may fail with an error.

Details

Logging from the XenApp agent appears as follows when this issue occurs:

2021-06-15 9:13:35.100 : Informational : Fetching users for application 'Mozilla Firefox_1'
2021-06-15 9:13:35.131 : Error : Object reference not set to an instance of an object.
   at Flexera.Compliance.Importer.XenAppAgent.DataProviders.XenAppDataProvider.GetApplicationUsers(Application app, IList`1 allUsers, Dictionary`2 AppGroupUsersIndexed, Dictionary`2 DeliveryGroupUsersIndexed, IList`1 allDesktopGroup)
   at Flexera.Compliance.Importer.XenAppAgent.DataProviders.XenAppDataProvider.GetXenAppApplications(String adminAddress, String siteName, IList`1 xaDesktopGroups)
   at Flexera.Compliance.Importer.XenAppAgent.DataProviders.XenAppDataProvider.GetAclApplications()
   at Flexera.Compliance.Importer.XenAppAgent.AclImporter.GenerateXenAppXml()
   at Flexera.Compliance.Importer.XenAppAgent.Program.Main(String[] args)

Fix status

This issue has been fixed in the following FlexNet Manager Suite releases: 2023 R2.1 / Jan 2024 (Cloud), 2024 R1 (On Premises)

Other information

Affected components: Integration: Citrix

Master issue ID: IOJ-2228355

Also known as: ITAM-629

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known-issue-citrix-xenapp-agent-may-fail-with-error-when-delivery-group-has-no-users-object-reference-not-set-to-an-instance-of-an-object-ioj-2228355

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Known Issue: Citrix XenApp agent may fail with error when delivery group has no users: "Object reference not set to an instance of an object" (IOJ-2228355)