code: @Override
      public Integer parameterAsInteger(String name, Integer defaultValue) {
          return request.parameterAsInteger(name, defaultValue);
      }
docs: Like {@link #parameter(String, String)}, but converts the
  parameter to Integer if found.
  <p>
  The parameter is decoded by default.
  
  @param name         The name of the parameter
  @param defaultValue A default value if parameter not found.
  @return The value of the parameter of the defaultValue if not found.