How to use

get

method

in

org.springframework.boot.info.InfoProperties

/**
 * Return the value of the specified property as an {@link Instant} or {@code null} if
 * the value is not a valid {@link Long} representation of an epoch time.
 * @param key the key of the property
 * @return the property value
 */
public Instant getInstant(String key) {
  String s = get(key);
  if (s != null) {
    try {
      return Instant.ofEpochMilli(Long.parseLong(s));
    }
    catch (NumberFormatException ex) {
      // Not valid epoch time
    }
  }
  return null;
}

/**
 * Copy the specified key to the target {@link Properties} if it is set.
 * @param target the target properties to update
 * @param key the key
 */
protected void copyIfSet(Properties target, String key) {
  String value = this.properties.get(key);
  if (StringUtils.hasText(value)) {
    target.put(key, value);
  }
}