code: protected String getDisplayParameter(String parameter) {
          if (parameter.length() <= this.parameterDisplayLength) {
              return parameter;
          }
          return parameter.substring(0, this.parameterDisplayLength - 3) + "...";
      }
docs: Construct parameter value to display.
  
  This method is called when invoked method takes multiple arguments.
  
  Default implementation truncate the parameter string if it is too long.
  
  @param parameter parameter value as string
  @return parameter value to display