@@ -0,0 +1,540 @@
+package com.google.musicanalysis;%0A%0Aimport java.io.IOException;%0Aimport javax.servlet.ServletException;%0Aimport javax.servlet.annotation.WebServlet;%0Aimport javax.servlet.http.HttpServlet;%0Aimport javax.servlet.http.HttpServletRequest;%0Aimport javax.servlet.http.HttpServletResponse;%0A%0A@WebServlet(%22/api/oauth/callback%22)%0Apublic class IndexServlet extends HttpServlet %7B%0A  @Override%0A  protected void doGet(HttpServletRequest req, HttpServletResponse res)%0A      throws ServletException, IOException %7B%0A    res.getWriter().write(%22Hello world!%22);%0A  %7D%0A%7D%0A

Create basic servlet