* Not all sources are backed by files - for example, in-memory sources
     * or database-backed sources will return null.
     *
     * @return the underlying {@code Path} if this source is file-backed,
     *         or {@code null} if this source has no associated file
     */
    @Nullable
    Path getPath();

    /**
     * Creates a new input stream to read the source contents.

    Collection<Entry<K, V>> entries = getSampleEntries(getNumEntries() - 1);
    entries.add(entry(null, v3()));

    resetContainer(getSubjectGenerator().create(entries.toArray()));
    assertTrue(
        "A Map should equal any other Map containing the same entries,"
            + " even if some keys are null.",
        getMap().equals(newHashMap(entries)));
  }

  @CollectionSize.Require(absent = CollectionSize.ZERO)

      InterruptibleTask<?> localTask = task;
      if (localTask != null) {
        localTask.interruptTask();
      }
    }

    this.task = null;
  }

  @Override
  protected @Nullable String pendingToString() {
    InterruptibleTask<?> localTask = task;
    if (localTask != null) {
      return "task=[" + localTask + "]";
    }
    return super.pendingToString();
  }

  @WeakOuter

        // Mock the behavior of sendrecv for MsrpcSamrOpenAlias
        doAnswer(invocation -> {
            MsrpcSamrOpenAlias rpc = invocation.getArgument(0);
            rpc.retval = 0; // Simulate success
            return null;
        }).when(mockDcerpcHandle).sendrecv(any(MsrpcSamrOpenAlias.class));

        // Act
        SamrAliasHandle aliasHandle = new SamrAliasHandle(mockDcerpcHandle, mockSamrDomainHandle, access, rid);

        // Assert

        @Test
        @DisplayName("Constructor accepts null challenge")
        void testConstructorAcceptsNullChallenge() {
            UniAddress dc = mock(UniAddress.class);

            NtlmChallenge nc = new NtlmChallenge(null, dc);

            assertNull(nc.challenge);
            assertSame(dc, nc.dc);
        }

        @Test
        @DisplayName("Constructor accepts null dc")
        void testConstructorAcceptsNullDc() {

        if (path == null || path.isEmpty()) {
            throw new SmbException("Path cannot be null or empty");
        }

        // Check length
        if (path.length() > maxPathLength) {
            throw new SmbException("Path exceeds maximum length: " + path.length() + " > " + maxPathLength);
        }

        // Check for null bytes
        if (NULL_BYTE.matcher(path).find()) {

        // Simulate decode_out with null info and totalentries
        netdfs.NetrDfsEnumEx decodedEnumEx = new netdfs.NetrDfsEnumEx(null, 0, 0, null, null);

        // Manually encode the expected output for decode_out
        byte[] encodeBufferOut2 = new byte[1024];
        NdrBuffer dstOut = new NdrBuffer(encodeBufferOut2, 0);

        // Simulate info pointer (null)
        dstOut.enc_ndr_long(0); // Null pointer for info

            final String encoding = loadCharset(is);
            if (encoding == null) {
                if (defaultEncoding == null) {
                    responseData.setCharSet(Constants.UTF_8);
                } else if (responseData.getCharSet() == null) {
                    responseData.setCharSet(defaultEncoding);
                }
            } else {

@GwtCompatible
final class CollectPreconditions {

  static void checkEntryNotNull(Object key, Object value) {
    if (key == null) {
      throw new NullPointerException("null key in entry: null=" + value);
    } else if (value == null) {
      throw new NullPointerException("null value in entry: " + key + "=null");
    }
  }

  @CanIgnoreReturnValue
  static int checkNonnegative(int value, String name) {
    if (value < 0) {

                async = false;
                next = null;
                received = false;
                error = false;
                verifyFailed = false;
                expiration = null;
                exception = null;
                mid = 0;
                command = 0;
                digest = null;
                response = null;
            }

            @Override