There is a key combination conflict which makes it very uncomfortable to use, among others the simple Java editor.
The Shift+Delete key combination is mapped to both the Delete from model action coming from UML2, and also in Eclipse for Cut and due to this in Java editor instead of the expected vanishing of the block, a popup comes up to select which action we want to take.
This occurs at least in 7.0, I did not check 7.0.1.
Best regards,
Robert