@Override
  public String getFormattedMessage() {
    if (formattedMessage == null) {
      formattedMessage = formatMessage(messagePattern, stringArgs);
    }
    return formattedMessage;
  }
Returns the formatted message.

@return the formatted message.
geode-logging/src/main/java/org/apache/geode/logging/internal/log4j/api/message/GemFireParameterizedMessage.java