This week's book giveaway is in the Testing forum. We're giving away four copies of The Way of the Web Tester: A Beginner's Guide to Automating Tests and have Jonathan Rasmusson on-line! See this thread for details.
I want to wide the functionality of swt List by adding a couple of extra methods, but it says �Subclassing not allowed�. I can override checkSubclass to make it omit the deriving check, but as I understood that�s not recommended. How actually dangerous is it and what is another way to extend standard widget functionality. Thanks in advice.