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Resolving the Form resubmission issue in Web application - Browser Back button issue

I stumbled up on a very frequent issue to be faced by a web application developer - the Browser Back button issue.
Question is how can we handle the resubmission of forms when user clicking on the Browser Back button?

Following links have provided me a clue on getting pass by this: Synchronizer token is the simple answer to handle at server side. Gives idea on the generic Presentation Tier Design Considerations: http://www.corej2eepatterns.com/Design/PresoDesign.htm

Gives focus more on the issue giving example in Struts framework: http://www.java-samples.com/showtutorial.php?tutorialid=582

Generating the classpath in Manifest files using Ant Script

I had a requirement to generate the classpath in Manifest files usng Ant Script and i found the link below to be very useful: http://martin.ankerl.com/2005/11/30/howto-create-manifestmf-classpath-from-ant/

The issue is discussed step by step in detail in this discussion: http://stackoverflow.com/questions/858766/generate-manifest-class-path-from-classpath-in-ant