how to post data from one page to another

Hello,
i am new to gwt and i want to use this framework to
develop my new project,i studied basic tutorial on gwt and developed a
sample application. i used history Mechanism for navigation,it is
working fine, now my issue is that how should i post data from one
page to another.i used formpanel but not sure what path should i set
in setAction() .and How to receive that posted data as i stay on the
same page with diffrent token.Or is there any another way to post data
while using History mechanism for page navigation.Please help me to
get out of issue asap.

Regards,
Harnek

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