HealthCheckServlet.java

package com.mycompany.cevent.web.servlet;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

public class HealthCheckServlet extends com.codahale.metrics.servlets.HealthCheckServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        super.doGet(req, resp);

        // Overrides the default behaviour. We don't want to return 500 Internal Service Error if one or more fail.
        // This count has an error 500, which is not the case.
        //
        // HealthCheckServlet responds to GET requests by running all the [health checks](#health-checks)
        // and returning 501 Not Implemented if no health checks are registered, 200 OK if all pass,
        // or 500 Internal Service Error if one or more fail.
        resp.setStatus(HttpServletResponse.SC_OK);
    }

}