lab mgr fails to save a custom resource type with children

Hi all,

I am trying to add a custom resource type to the lab manager but I cannot seem to be able to save it.
Basically I am trying to create a resource type "Parent" which can contain an instance of a resource type called "Child".
The following steps can be taken to reproduce my problem:


(1) Go to Admin > System properties > Lab resource properties
(2) Click "+" (Add New Type)
- Name the type "Parent"
(3) Click "+" (Add New Type)
- Name the type "Child"
(4) Right-click on type "Parent" and select "Edit Type Attributes"
- Click "+" to add an attribute with Attribute Name "child", Data Type "Type" and Value "Child"
(5) Click OK
(6) Click Save

The web page outputs an error message saying "Unable to save changes to the catalog" and in the server console window I see a stack trace with the following error message:

java.lang.IllegalArgumentException: invalid UUID


Have I encountered a bug?

best regards, Peter