Method emptyToNull

output/java_guava/1.4.19/Strings.java:54–57

Returns the given string if it is nonempty; null otherwise. @param string the string to test and possibly return @return string itself if it is nonempty; null if it is empty or null

(@Nullable String string)

   */

  @Nullable
  public static String emptyToNull(@Nullable String string) {
    return isNullOrEmpty(string) ? null : string;
  }

  /**
   * Returns {@code true} if the given string is null or is the empty string.