Hello, I was developing a web application and I needed to add chart visualization with google visualization api and then the servlet that I was using was modified to inherit from DataSourceServlet instead of HttpServlet. I tried to deploy but now I have 404 http error when I am testing to pass paramaters to request directed to that servlet any other way to add visualization, especially fro annotedtimeline chart which need to be update each time the servlet receive request ?
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