I can't exactly tell, what I did other than trying to set the connection properties (credentials) for a JBAS. This was on a slow and loaded box, so I probably have clicked the "save" button multiple times in the GWT UI.
Caused by: java.lang.NullPointerException
This can happen if no config to deepCopy is passed into the constructor.
- we should guard the UI from double submissions
- the AbstractResourceConfigurationUpdate() should check for null.