The transfer is done at
New balance of source account:
New balance of destination account:
Try using the browser back button and submit the form again. This should result in a double post that Struts should intercept and handle accordingly.
For example 3 (session token) you should notice that the date/time stays the same. This interceptor catches that this is a double post but doens't display the double post page, but just renders the web page result from the first post.
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