Product Version: NetBeans IDE Dev (Build 200908300201)
Java: 1.6.0_15; Java HotSpot(TM) Client VM 14.1-b02
System: Linux version 2.6.24-23-generic running on i386; UTF-8; en_US (nb)

When the statement which will be casted by hint already starts with explicits casting, the can rewrite existing cast to
the new one.

Here is example:
1) have a code:
    public Number x() {
        return (List)null;
    }

the hint will produce:
   return (Number)(List) null;

but is is enough to rewrite is like this:

   return (Number) null;