public void addUnprivilegedServlet(String name, String pathSpec,
    Class<? extends HttpServlet> clazz) {
    addServletWithAuth(name, pathSpec, clazz, false);
  }
Adds a servlet in the server that any user can access. This method differs from
{@link #addPrivilegedServlet(String, String, Class)} in that any authenticated user can
interact with the servlet added by this method.
@param name     The name of the servlet (can be passed as null)
@param pathSpec The path spec for the servlet
@param clazz    The servlet class
hbase-http/src/main/java/org/apache/hadoop/hbase/http/HttpServer.java