result.addFailure(new RuntimeException("RuntimeException"));
        result.addFailure(new IllegalStateException("IllegalStateException"));
        result.addFailure(new NullPointerException("NullPointerException"));

        assertEquals(4, result.getFailures().size());
        assertTrue(result.getFailures().get(0) instanceof Exception);
        assertTrue(result.getFailures().get(1) instanceof RuntimeException);

        @Test
        @DisplayName("list with null root throws NullPointerException")
        void list_withNullRoot_throwsNpe() {
            // Intent: null root is invalid input
            assertThrows(NullPointerException.class, () -> SmbEnumerationUtil.list(null, "*", 0, null, null));
        }

        @Test
        @DisplayName("listFiles with null root throws NullPointerException")
        void listFiles_withNullRoot_throwsNpe() {

    super.setUp();

    empty = new Target(emptyCollection(), "empty");
    /*
     * We test that nullSingleton.retainAll(disjointList) does NOT throw a
     * NullPointerException when disjointList does not, so we can't use
     * MinimalCollection, which throws NullPointerException on calls to
     * contains(null).
     */
    List<E> disjointList = asList(e3(), e4());
    disjoint = new Target(disjointList, "disjoint");

    @Test
    void testPropertiesClear() {
        // Test for issue #11552: NullPointerException when clearing properties
        Model model = new Model();
        model.addProperty("key1", "value1");
        model.addProperty("key2", "value2");
        assertEquals(2, model.getProperties().size());

        // This should not throw NullPointerException
        model.getProperties().clear();

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUES)
  public void testPutAllNullValueNullLast_unsupported() {
    int size = getNumElements();

    assertThrows(
        NullPointerException.class, () -> multimap().putAll(k3(), newArrayList(v3(), null)));

    Collection<V> values = multimap().get(k3());
    if (values.size() == 0) {
      expectUnchanged();

    @Test
    @DisplayName("encode should throw NPE on null input")
    void testEncodeNull() {
        assertThrows(NullPointerException.class, () -> Base64.encode(null));
    }

    @Test
    @DisplayName("decode should throw NPE on null input")
    void testDecodeNull() {
        assertThrows(NullPointerException.class, () -> Base64.decode(null));
    }

                new ClUnsupportedOperationException("hoge", new NullPointerException());
        assertThat(clUnsupportedOperationException.getMessage(), is("hoge"));
        assertThat(clUnsupportedOperationException.getCause(), instanceOf(NullPointerException.class));
    }

    /**
     * Test method for

        String testString = null;

        // Expect a NullPointerException due to null string
        assertThrows(NullPointerException.class, () -> {
            pacString.check(testString);
        }, "A NullPointerException should be thrown for a null string with non-zero pointer.");
    }

    ImmutableList.Builder<String> builder = ImmutableList.builder();
    assertThrows(NullPointerException.class, () -> builder.add((String) null));

    assertThrows(NullPointerException.class, () -> builder.add((String[]) null));

    assertThrows(NullPointerException.class, () -> builder.add("a", null, "b"));
  }

  public void testBuilderAddAllHandlesNullsCorrectly() {
    {

   * preferable mainly for consistency and maintainability of your code.
   *
   * @throws NullPointerException if the element is null
   */
  public static <E> ImmutableList<E> of(E e1) {
    return construct(e1);
  }

  /**
   * Returns an immutable list containing the given elements, in order.
   *
   * @throws NullPointerException if any element is null
   */
  public static <E> ImmutableList<E> of(E e1, E e2) {