public class Main {

  @Value
  @EqualsAndHashCode(callSuper = true)
  private static class Left extends Throwable {
    private final String left;
  }

  @Value
  @EqualsAndHashCode(callSuper = true)
  private static class Right extends Throwable {
    private final int right;
  }

  private static Throwable function(int x) {
    if (x > 10) {
      return new Left("asdf");
    }
    return new Right(15);
  }
  public static void main(String[] args) {
    var result = function(7);
    try {
      throw result;
    } catch (Left l) {
      System.out.println(l.getLeft());
    } catch (Right r) {
      System.out.println(r.getRight());
    } catch (Throwable throwable) {
      throwable.printStackTrace();
    }
  }
}