@Deprecated
  public void addServlet(String name, String pathSpec, Class<? extends HttpServlet> clazz) {
    addUnprivilegedServlet(name, pathSpec, clazz);
  }
Explicitly invoke {@link #addPrivilegedServlet(String, String, Class)} or
{@link #addUnprivilegedServlet(String, String, Class)} instead of this method. This method will
add a servlet which any authenticated user can access.
@deprecated Use {@link #addUnprivilegedServlet(String, String, Class)} or
            {@link #addPrivilegedServlet(String, String, Class)} instead of this method which
            does not state outwardly what kind of authz rules will be applied to this servlet.
hbase-http/src/main/java/org/apache/hadoop/hbase/http/InfoServer.java