log.error("Failed to update pre-auth integrity hash", e);
                // Reset hash on error to maintain integrity
                resetPreauthHash();
                throw new CIFSException("Pre-authentication integrity hash update failed", e);
            }
        }
    }

    /**
     * Reset the pre-authentication integrity hash to initial state.

     * <blockquote><pre>
     * Exception MalformedURLException: unknown protocol: smb
     *     at java.net.URL.&lt;init&gt;(URL.java:480)
     *     at java.net.URL.&lt;init&gt;(URL.java:376)
     *     at java.net.URL.&lt;init&gt;(URL.java:330)
     *     at jcifs.smb1.smb1.SmbFile.&lt;init&gt;(SmbFile.java:355)
     *     ...
     * </pre></blockquote>
     */

     *
     * @return the negotiateContexts
     */
    public NegotiateContextRequest[] getNegotiateContexts() {
        return this.negotiateContexts;
    }

    /**
     * Gets the pre-authentication integrity salt for SMB 3.1.1.
     *
     * @return the preauthSalt
     */
    public byte[] getPreauthSalt() {
        return this.preauthSalt;
    }

    /**
     * {@inheritDoc}

        void testDecode() throws NdrException {
            // Given: Mocked buffer data with pre-created entries to avoid complex entry decode chain
            samr.SamrSamArray array = new samr.SamrSamArray();
            array.entries = new samr.SamrSamEntry[1]; // Pre-populate to avoid decoding
            array.entries[0] = new samr.SamrSamEntry();

 * </p>
 *
 * <p>
 * Example Usage:
 * </p>
 *
 * <pre>
 * XmlTransformer transformer = new XmlTransformer();
 * transformer.setNamespaceAware(true);
 * transformer.setCacheDuration(30);
 * transformer.addFieldRule("title", "/book/title/text()");

            assertThrows(SmbUnsupportedOperationException.class, () -> transport.createEncryptionContext(new byte[] { 1 }, null));
        }

        @Test
        @DisplayName("createEncryptionContext rejects pre-SMB3 dialect")
        void createEncryptionContext_rejects_oldDialect() throws Exception {
            setField(transport, "smb2", true);
            Smb2NegotiateResponse nego = new Smb2NegotiateResponse(cfg);

 *
 * <blockquote>
 *
 * <pre>
 *     smb://[[[domain;]username[:password]@]server[:port]/[[share/[dir/]file]]][?param=value[param2=value2[...]]]
 * </pre>
 *
 * </blockquote>
 *
 * This example:
 *
 * <blockquote>
 *
 * <pre>
 *     smb://storage15/public/foo.txt
 * </pre>
 *
 * </blockquote>
 *

        @SuppressWarnings("unchecked")
        Map<String, URLStreamHandler> handlers = (Map<String, URLStreamHandler>) handlersField.get(null);
        handlers.clear();
    }

    /**
     * Pre-populates the protocol handlers cache with mock handlers for testing.
     * This avoids the need for actual protocol handlers to be available.
     */
    private void setupMockProtocolHandlers() throws Exception {

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

import jcifs.CIFSException;
import jcifs.smb.PreauthIntegrityService.PreauthIntegrityContext;

/**
 * Comprehensive tests for enhanced pre-authentication integrity service.
 */
public class PreauthIntegrityServiceTest {

    private PreauthIntegrityService preauthService;
    private SecureRandom secureRandom;

    @BeforeEach
    public void setUp() {

        byte[] r15 = NtlmUtil.getPreNTLMResponse(cifsContext, password15, challenge);

        // Assert: equal because only first 14 OEM bytes are used
        assertArrayEquals(r14, r15, "Only first 14 OEM bytes affect Pre-NTLM response");
        assertEquals(24, r14.length);

        // Verify collaborator interactions
        verify(cifsContext, atLeastOnce()).getConfig();
        verify(configuration, atLeastOnce()).getOemEncoding();