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
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
Some useful Links
Jquery Demo on Autocomplete textbox
Interesting blog on website security
And a good ppt on how to hack a web app with measures to be taken against such hacks