conditionalException

conditionalException.java

  // instead of
  public void legacyConditionalException(String nullableValue) {
    if (nullableValue != null) {
      exec.methodOne(nullableValue);
    } else {
      throw new RuntimeException("don't like nulls");
    }
  }

  // do it the functional way
  public void vavrConditionalException(String nullableValue) {
    Option.of(nullableValue)
      .peek(exec::methodOne)
      .getOrElseThrow(() -> new RuntimeException("don't like nulls"));
  }