How to replace namespace tag with new value using -JAVA MAPPING

Hi Guys,

I need to replace namespace Tag in Target xml with a new value.

For Eg: My namespace Tag is - <ns0:TestHeader xmlns:ns0="http://0020.TestHeader.SS.com">

I want My target xml to have value- <ns0:TestHeader>

How can i achieve it using JAVA mapping?

Can you provide me the code to do so.