try {
            final SmbFileHandleImpl h = this.handle;
            if (h != null) {
                h.close();
            }
        } catch (final SmbException se) {
            throw seToIoe(se);
        } finally {
            this.tmp = null;
            this.handle = null;
            if (this.unsharedFile) {
                this.file.close();
            }
        }
    }

            byte[] buffer = new byte[100];
            // Create "Test\0" in UTF-16LE with proper null terminator
            byte[] testBytes = Strings.getUNIBytes("Test");
            System.arraycopy(testBytes, 0, buffer, 0, 8);
            buffer[8] = 0; // null terminator low byte
            buffer[9] = 0; // null terminator high byte

            String result = testBlock.readString(buffer, 0, buffer.length, 8, true);

        });

        assertEquals(0, netShareEnum.writeDataWireFormat(null, 0));

        // Read methods return 0 with null buffers
        assertEquals(0, netShareEnum.readSetupWireFormat(null, 0, 0));
        assertEquals(0, netShareEnum.readParametersWireFormat(null, 0, 0));
        assertEquals(0, netShareEnum.readDataWireFormat(null, 0, 0));
    }

    @Test

// Exclude patterns  
crawler.urlFilter.addExclude(".*\\.js$");
crawler.urlFilter.addExclude(".*login.*");
```

## Supported Protocols and Formats

### Protocols
- **HTTP/HTTPS**: Full web crawling support with cookies, authentication, redirects
- **File System**: Local and network file system access
- **FTP**: FTP server crawling with authentication
- **SMB/CIFS**: Windows network shares

            if (this.netname != null) {
                _dst = _dst.deferred;
                _dst.enc_ndr_string(this.netname);

            }
            if (this.remark != null) {
                _dst = _dst.deferred;
                _dst.enc_ndr_string(this.remark);

            }
            if (this.path != null) {
                _dst = _dst.deferred;

        @Test
        @DisplayName("Should handle null context")
        void testNullContext() {
            // Given
            when(transportPool.getSmbTransport(null, address, DEFAULT_PORT, false)).thenReturn(null);

            // When
            SmbTransport result = transportPool.getSmbTransport(null, address, DEFAULT_PORT, false);

            // Then
            assertEquals(null, result);
        }

        @Test

    }

    @Test
    @DisplayName("Should handle null path")
    void testNullPath() {
        // When creating with null path
        Smb2TreeConnectRequest reqWithNull = new Smb2TreeConnectRequest(mockConfig, null);

        // Then - should not throw during construction
        assertNotNull(reqWithNull);

        // But should throw when trying to use the null path
        assertThrows(NullPointerException.class, () -> {

            boolean hasEnoughSpace = allocInfo.getFree() >= requiredSpace;

            // Then
            assertTrue(hasEnoughSpace);
        }

        @Test
        @DisplayName("Should support full disk detection pattern")
        void shouldSupportFullDiskDetectionPattern() {
            // Given
            TestAllocInfo fullDisk = new TestAllocInfo(1024L, 0L);

    }

    /**
     * Test null password handling
     */
    @Test
    public void testNullPasswordHandling() {
        // Test with null String password
        NtlmPasswordAuthenticator auth1 = new NtlmPasswordAuthenticator("testuser", (String) null);
        assertNull(auth1.getPassword());

        // Test with null char[] password

        @Override
        public boolean match(ResponseData responseData) {
            if (responseData == null) {
                return false;
            }

            // Check URL condition
            String urlCondition = conditions.get("url");
            if (urlCondition != null && responseData.getUrl() != null) {
                if (!responseData.getUrl().matches(urlCondition)) {
                    return false;