Actionscript 3 :: Get/set Functions On Static Properties?

I am using get/set functions to make variables that are (or appear to be) read only. I can get it to work with instance variables, but not static variables. I found this, which seems to indicate that it's possible to use get/set functions on static properties, but the compiler keeps telling me I have duplicate function declarations. This is essentially what I'm using:

package {
public class Foo {
protected static var bar:int = 0;
public static function get bar():int {return bar;}
}
}