Ok, it turns out it is a little more tricky then I first thought. It may still be a 3.1 only thing but here are more specific instructions. It’s actually a rather small bug now that I figured out exactly how to duplicate it. 🙂
1. Create a new Web Project
2. Open web.xml
3. Drag any file accross the editor.
4. If the cursor crosses a place in the file where there is a blank line with no whitespace or nothing then the draging dissapears. So, in the newly created web.xml a new line with no whitespace is created between the opening and closing <web-app> tags. There is another one below the closing web-app tag.
Give that one a try. Sorry it’s just a minor bug I thought it was bigger. 🙂
Mike