} catch (FactoryMethodReturnsNullException e) {
          nullErrors.add(e);
        }
      }
    }
    throwFirst(paramErrors);
    throwFirst(distinctValueErrors);
    throwFirst(instantiationExceptions);
    throwFirst(nullErrors);
  }

  /**
   * Instantiates {@code cls} by invoking one of its non-private constructors or non-private static