How can I refactor the element type of Generics in eclipse, any shortcuts?

Question

I'm in trouble with refactorring the element type of generics, please check the image below,

The type of element is "String", and now I want to refactor it to "Integer", how should I do in eclipse. I DO NOT want to change the type of "titleName" !! . I've checked that if I select the type name and right-click, there is no "Rename" in the context menu :-(

I refactorred the type with the "help/replace" as a workaround, however, I don't think this is a good way, it may cause typos.

well, I know my question is a bit little weird, but I think lots of guys may encoutered. For instance, how to change "Map<String,Integer> map = HashMap<String, Integer>()" to "Map<Integer,User> map = HashMap<Integer, User>()" ?

Answer 1

CTRL + F 
FIND: <String>
REPLACE WITH: <Integer>
Replace All