*
     * @throws ExecutionException if {@code closingFuture} is a failed step
     * @throws CancellationException if the {@code closingFuture}'s future was cancelled
     * @throws IllegalArgumentException if {@code closingFuture} is not one of the futures passed to
     *     {@link #whenAllComplete(Iterable)} or {@link #whenAllComplete(Iterable)}

   * null will be returned.
   *
   * @throws ParameterNotInstantiableException if the static methods cannot be invoked because the
   *     default value of a parameter cannot be determined.
   * @throws IllegalAccessException if the class isn't public or is nested inside a non-public
   *     class, preventing its methods from being accessible.
   * @throws InvocationTargetException if a static method threw exception.
   */

   * that this throws different exception types, and throws an exception if {@code null} would be
   * returned).
   *
   * @param position position of the element to return
   * @return the element at the specified position in this fluent iterable
   * @throws IndexOutOfBoundsException if {@code position} is negative or greater than or equal to

   * that this throws different exception types, and throws an exception if {@code null} would be
   * returned).
   *
   * @param position position of the element to return
   * @return the element at the specified position in this fluent iterable
   * @throws IndexOutOfBoundsException if {@code position} is negative or greater than or equal to

   *   at ...
   * Caused by: com...ExampleStackTrace: ReadWriteA -> LockB
   *   at ...
   *   at ...
   * </pre>
   *
   * <p>Instances are logged for the {@code Policies.WARN}, and thrown for {@code Policies.THROW}.
   *
   * @since 13.0
   */
  public static final class PotentialDeadlockException extends ExampleStackTrace {

    private final ExampleStackTrace conflictingStackTrace;

      throw new UnsupportedOperationException();
    }

    @Override
    public void replaceAll(BiFunction<? super K, ? super V, ? extends V> function) {
      throw new UnsupportedOperationException();
    }

    @Override
    public @Nullable V putIfAbsent(K key, V value) {
      throw new UnsupportedOperationException();
    }

    @Override

    /** Returns the value. Does not block or throw exceptions. */
    @Nullable V get();

    /**
     * Waits for a value that may still be loading. Unlike get(), this method can block (in the case
     * of FutureValueReference).
     *
     * @throws ExecutionException if the loading thread throws an exception
     * @throws ExecutionError if the loading thread throws an error
     */

   *
   * <p>If the mapped keys contain duplicates, an {@code IllegalArgumentException} is thrown when
   * the collection operation is performed. (This differs from the {@code Collector} returned by
   * {@link java.util.stream.Collectors#toMap(java.util.function.Function,
   * java.util.function.Function) Collectors.toMap(Function, Function)}, which throws an {@code
   * IllegalStateException}.)
   *

        try (BufferedReader br = new BufferedReader(new InputStreamReader(System.in, StandardCharsets.UTF_8))) {
            return br.lines()
                .map(String::trim)
                .filter(s -> !s.isEmpty())
                .collect(Collectors.toList());
        }
    }

   */
  @Test
  public void testNulls() throws Exception {
    for (Class<?> classToTest : findClassesToTest(loadClassesInPackage(), NULL_TEST_METHOD_NAMES)) {
      if (classToTest.getSimpleName().equals("ReflectionFreeAssertThrows")) {
        /*
         * These classes handle null properly but throw IllegalArgumentException for the default