'dabbrev-expand' ignores case for completions..

[Livin Stephen Sharma]

In my Java class if I have a declaration partially typed-out like this:

> // incomplete declaration
> FileWriter fileWriter = new File

and then I hit M-/ to try completion on the last word ('File') in the  
hope of getting 'FileWriter',
i get this instead:

> // why is the 'writer' text generated by 'M-/' lower-cased?
> FileWriter fileWriter = new Filewriter

 Is there a way to have the case not dropped to lower?

Thanks.
--lss