Description of problem:
An incorrect dialog appears after user chooses to cancel creation of a new directory in the Quickstarts panel:
"The directory you have chosen either does not exist or is not valid".

How reproducible:
Every time.

Steps to Reproduce:
1. From the Quickstarts installation panel, select a non-existing directory as the installation target. 
2. A dialog pops up asking user if they want to create a directory here. 
3. Hit cancel

Actual results:
The second dialog pops up with the above warning.


Expected results:
No second dialog is necessary since the user already chose to cancel creating a new directory. 

Additional info:
This issue must be fixed in izpack.