Error “class java.lang.NullPointerException” during scope decrease.

Products

• VMware Cloud Director

Issue/Introduction

• Attempting to delete the network associated with this ip scope states the following..
  "Please delete associated networks when trying to delete DC Group".
  
  
• Decreasing the scope of a lan from a group vdc results in error...
  "java.lang.NullPointerException".
• There are no vapp networks associated with the Organization VDC Network in the UI.
  
  
• Querying the database shows there are no vapps or vapp network associated with the network you are attempting to remove. 

Environment

10.x

Resolution

!! Take a backup of your database prior to making any changes. !!

Remove the stale entry in the logical_network_ip_scope table. 

1. Query the logical_network_ip_scope in the database using the name of the Organization vDC Network. 
   SELECT * from logical_network_ip_scope where logical_network_id IN (SELECT id from logical_network where name='Organization vDC Network Name');
   
   
2. Once you are sure you have the correct logical_network_ip_scope entry you can change your select statement to a delete. 
   DELETE from logical_network_ip_scope where logical_network_id IN (SELECT id from logical_network where name='Organization vDC Network Name');
   
   
3. Go back to the VMware Cloud Director Tenant UI and re-attempt the deletion of the Organization VDC Network.