SmbComNtCancel cancelRequest = mock(SmbComNtCancel.class);

        digest.sign(data, 0, data.length, cancelRequest, null);

        verify(cancelRequest).setSignSeq(10);
        // Sequence should increment by 1 for cancel requests
    }

    @Test
    @DisplayName("Test sign method with null response")
    void testSignWithNullResponse() {

      Ordering.<Integer>natural().<Integer>nullsFirst();

  private static final List<@Nullable Integer> IN_ORDER_VALUES =
      unmodifiableList(Arrays.<@Nullable Integer>asList(null, 1, 2, 3, 4, 5));

  public void testCreateEmptyRangeFails() {
    for (BoundType lboundType : BoundType.values()) {
      for (BoundType uboundType : BoundType.values()) {
        assertThrows(

   */
  protected abstract HashCode makeHash();

  // Process pent-up data in chunks
  private void munchIfFull() {
    if (buffer.remaining() < 8) {
      // buffer is full; not enough room for a primitive. We have at least one full chunk.
      munch();
    }
  }

  private void munch() {
    Java8Compatibility.flip(buffer);
    while (buffer.remaining() >= chunkSize) {

	Roles                  Roles                  `gorm:"serializer:json"`
	Roles2                 *Roles                 `gorm:"serializer:json"`
	Roles3                 *Roles                 `gorm:"serializer:json;not null"`
	Contracts              map[string]interface{} `gorm:"serializer:json"`
	JobInfo                Job                    `gorm:"type:bytes;serializer:gob"`

    try {
      assertFalse(collection.containsAll(MinimalCollection.of((E) null)));
    } catch (NullPointerException tolerated) {
    }
  }

  @CollectionFeature.Require(ALLOWS_NULL_QUERIES)
  public void testContainsAll_nullAllowed() {
    assertFalse(collection.containsAll(MinimalCollection.of((E) null)));
  }

  @CollectionFeature.Require(ALLOWS_NULL_VALUES)
  @CollectionSize.Require(absent = ZERO)

    assertThrows(NullPointerException.class, () -> getMap().replace(k0(), null));
    expectUnchanged();
  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUE_QUERIES)
  public void testReplace_absentNullValueUnsupported() {
    try {
      getMap().replace(k3(), null);
    } catch (NullPointerException tolerated) {
      // permitted not to throw because it would be a no-op
    }

    assertThrows(NullPointerException.class, () -> getMap().replace(k0(), null));
    expectUnchanged();
  }

  @MapFeature.Require(value = SUPPORTS_PUT, absent = ALLOWS_NULL_VALUE_QUERIES)
  public void testReplace_absentNullValueUnsupported() {
    try {
      getMap().replace(k3(), null);
    } catch (NullPointerException tolerated) {
      // permitted not to throw because it would be a no-op
    }

   * {@link #rightValue} are not equal, and one but not both of them may be null.
   *
   * @since 2.0
   */
  @DoNotMock("Use Maps.difference")
  interface ValueDifference<V extends @Nullable Object> {
    /** Returns the value from the left map (possibly null). */
    @ParametricNullness
    V leftValue();

    /** Returns the value from the right map (possibly null). */
    @ParametricNullness
    V rightValue();

    /**

  /**
   * Visits the given types. Null types are ignored. This allows subclasses to call {@code
   * visit(parameterizedType.getOwnerType())} safely without having to check nulls.
   */
  public final void visit(@Nullable Type... types) {
    for (Type type : types) {
      if (type == null || !visited.add(type)) {
        // null owner type, or already visited;
        continue;
      }

     * @return List of matching toolchains, never null
     * @throws ToolchainManagerException if toolchain retrieval fails
     */
    @Nonnull
    default List<Toolchain> getToolchains(@Nonnull Session session, @Nonnull String type)
            throws ToolchainManagerException {
        return getToolchains(session, type, null);
    }

    /**