Key key = new KerberosKey(null, new byte[16], KerberosConstants.RC4_ENC_TYPE, 0);
        byte[] data = new byte[32]; // Dummy data
        // The test will likely fail with "Checksum failed" as the data is not properly encrypted
        // but it proves the decryption path is taken.
        assertThrows(GeneralSecurityException.class, () -> KerberosEncData.decrypt(data, key, KerberosConstants.RC4_ENC_TYPE));
    }

    /**

    @BeforeEach
    public void setUp() {
        mockConfig = Mockito.mock(Configuration.class);
        response = new Smb2NegotiateResponse(mockConfig);
    }

    /**
     * Test that malformed structure size is properly rejected.
     */
    @Test
    public void testMalformedStructureSize() {
        byte[] malformedBuffer = createBasicNegotiateResponseBuffer();
        // Set incorrect structure size (should be 65)

        // Given
        byte[] buffer = new byte[64];
        int bufferIndex = 8;

        // Prepare test data in buffer (40 bytes of data)
        // Use SMBUtil to properly encode times in Windows FILETIME format
        SMBUtil.writeTime(TEST_CREATE_TIME, buffer, bufferIndex);
        SMBUtil.writeTime(TEST_LAST_ACCESS_TIME, buffer, bufferIndex + 8);

        // SMB_COM_LOGOFF_ANDX = 0x74
        assertEquals((byte) 0x74, msg.command, "Command should be SMB_COM_LOGOFF_ANDX");
    }

    @Test
    @DisplayName("constructor with mock andx properly sets andx field")
    void constructorWithMockAndx() {
        // Create a mock ServerMessageBlock
        ServerMessageBlock mockAndx = mock(ServerMessageBlock.class);

        assertNotNull(WitnessRegistration.WitnessRegistrationState.EXPIRED);
    }

    @Test
    void testEnumToStringConversions() {
        // Test that enum toString methods work properly
        assertEquals("CLUSTER_WITNESS", WitnessServiceType.CLUSTER_WITNESS.toString());
        assertEquals("FILE_SERVER_WITNESS", WitnessServiceType.FILE_SERVER_WITNESS.toString());

    void sendrecv_smb2_ioctl() throws Exception {
        // Arrange
        SmbPipeHandleImpl handle = newHandleWithBasicStubs(0, "\\\\pipe\\\\x");

        // Setup the tree handle properly
        when(pipe.ensureTreeConnected()).thenReturn(tree);
        when(tree.acquire()).thenReturn(tree);

        // Setup for ensureOpen
        when(tree.isSMB2()).thenReturn(true);

import java.nio.file.Files;
import java.util.logging.Logger;

/**
 * ContentCache is a class that provides a way to cache content either in memory or in a file.
 * It implements the Closeable interface to ensure that resources are properly released.
 *
 * <p>This class supports two types of content caching:
 * <ul>
 *   <li>In-memory caching using a byte array</li>
 *   <li>File-based caching using a File object</li>
 * </ul>
 *

                    bufferIndex += stringWireLength(this.nativeFileSystem, bufferIndex);
                }
            } catch (final Exception e) {
                // Ignore errors - some servers don't properly return this field
                // Keep the default empty string value
            }
        }

        return bufferIndex - start;
    }

    @Override
    public String toString() {

        try {
            // Add null check to prevent NPE if object was not fully constructed
            if (this.usageCount != null && this.usageCount.get() != 0) {
                log.warn("Tree handle was not properly released, performing emergency cleanup: "
                        + (this.resourceLoc != null ? this.resourceLoc.getURL() : "unknown"));
                emergencyReleaseHandle();
            }
        } catch (Exception e) {

    }

    /**
     * Test the init method when CIFSException occurs.
     * Verifies that configuration properties are properly validated during initialization.
     */
    @Test
    void testInitWithCIFSException() {
        // Test with valid configuration - should initialize successfully