When trying to add a disk with a new SCSI_controller the operation fails with similar errors to the below:
"Cannot invoke "Map.entrySet()" because "unitStatusMap" is null"
or
"org.apache.commons.collections.MapUtils.getBoolean(Map, Object)" is null"
VMware Aria Automation 8.18.x
When the User selects SCSI_controller that does not exist on the VM yet, the VMware Aria Automation creates a disk first before SCSI_controller which then fails with a null pointer exception.
The fix for this issue will be provided in VMware Aria Automation 8.18.1 Patch 2.
The workaround is to not select SCSI_controller when adding disk.