[FC 10] netbeans and keyboard problems

Hi,

since the upgrade to FC10 I cannot type the letters '{', '[', ']', '}', 
etc anymore in the netbeans editor. All letters that are type with the 
Alt-Gr key on the german keyboard layout are affected. The problem 
exists only  in netbean's editor. All other applications work as expected.

Do you have a hint?

Thanks and greets

Boris