Allow max. file upload size of more than 2gb in struts 2

[punter]

Hello,
I am using Struts 2.1 in my project. For the file upload process, is it 
possible to supersede the normal 2 gb file limit for struts2.The struts.xml 
maxsize element in my project is as follows :
 <constant name="struts.multipart.maxSize"         
        value="2147483648" />
Please update me the process to allow more than 2gb (Upto 3 or 4 gb) file 
uploads in struts 2.1.
Thanks,Saurabh