Steps to reproduce:
1.  Create a .bpel process
2.  In the Navigator window, right-click Variables and select Add Variable

Result:
The Create New Variable window, automatically defaults the following message 
in red:
"You will not be able to apply changes until you fix the following problems
- You should specify the message type"

In my opinion this is kind of harsh to tell the user that there is a "problem" 
before any attempt to make the correct actions has been made.

(see attached)