static @NotNull String[] split(final @Nullable String text) {
    if (StringUtils.isBlank(text)) {
      return new String[0];
    }

    return text.split("[\\s,]+");
  }
Splits an array of values from a string, whitespace or comma separated.
geode-core/src/main/java/org/apache/geode/internal/net/SSLUtil.java