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Write a simple class that subcalsses HttpServletRequestWrapper with a getParameter() method that returns the sanitized version of the input. Then pass an instance of your HttpServletRequestWrapper to Filter.doChain instead of the response object directly.

Write a simple class that subcalsses HttpServletRequestWrapper with a getParameter() method that returns the sanitized version of the input. Then pass an instance of your HttpServletRequestWrapper to Filter.doChain() instead of the request object directly.

Write a simple class that subcalsses HttpServletRequestWrapper with a getParamater() method that returns the sanitized version of the input. Then pass an instance of your HttpServletRequestWrapper to Filter.doChain instead of the response object directly.

Write a simple class that subcalsses HttpServletRequestWrapper with a getParameter() method that returns the sanitized version of the input. Then pass an instance of your HttpServletRequestWrapper to Filter.doChain instead of the response object directly.

Write a simple class that implements the HttpServletRequestWrapper interface with a getParamater() method that returns the sanitized version of the input. Then pass an instance of your HttpServletRequestWrapper to Filter.doChain instead of the response object directly.

Write a simple class that subcalsses HttpServletRequestWrapper with a getParamater() method that returns the sanitized version of the input. Then pass an instance of your HttpServletRequestWrapper to Filter.doChain instead of the response object directly.