Junit fr Webserver testing

Hi Seniors,
  I am a newbie in using Junit. Please let me know if JUnit will be
good enough for web application  testing(server code in java). Is it
true that "The JUnit code will be complex and hard to maintain. You
will have to reproduce all of the interactions between code and user
within the Junit test, which very quickly becomes complex. If all you
are doing is testing one single entry point, then this could well
work, but if you are testing multiple screens (a wizard or something
like that), then it can quickly become fragile and unmanageable."?

I will be moving to watij if Junit is not good enough for web app
testing. Suggestions cordially invited.

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Thanks and Regards
Jyotirmoy Sundi

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