Typing curly braces { in Eclipse

By default Ctrl+Alt+B keystroke acts as skip breakpoints shortcut. You need to unbind it by ...

1. ... going to Window > Preferences. 
2. In the search box on the left side type in binding. 
3. Click on Keys under General.
4. Now in the search box on the right side type in Alt+B.
5. Click on Skip All Breakpoints list item.
6. Click on Unbind Command button.
7. Click on Apply and Close button.

All thanks go to StackOverflow answer here.