// Validate minimum buffer size for SMB2 negotiate response
        if (buffer == null || buffer.length < bufferIndex + 65) {
            throw new SMBProtocolDecodingException("Buffer too small for SMB2 negotiate response (minimum 65 bytes required)");
        }

        final int structureSize = SMBUtil.readInt2(buffer, bufferIndex);
        if (structureSize != 65) {

@ExtendWith(MockitoExtension.class)
public class SmbAuthExceptionTest {

    /**
     * Provide representative error codes for the int constructor.
     * - NT status code (high bits set)
     * - Success code (0)
     * - Non-NT small code to exercise default mapping to NT_STATUS_UNSUCCESSFUL
     */
    static Stream<Arguments> intErrorCodes() {
        return Stream.of(Arguments.of(NtStatus.NT_STATUS_ACCESS_DENIED, NtStatus.NT_STATUS_ACCESS_DENIED),

    }

    @Test
    void testReadDataWireFormat_BufferTooSmall() throws Exception {
        // Test with buffer too small for complete data
        response = new Trans2QueryFSInformationResponse(config, FileSystemInformation.SMB_INFO_ALLOCATION);

        byte[] buffer = new byte[10]; // Too small for SmbInfoAllocation

        // Set dataCount
        setDataCount(response, 10);

    }

    @Test
    @DisplayName("Should throw exception when buffer too small")
    void testWriteBytesWireFormatBufferTooSmall() {
        // Given
        Configuration mockConfig = mock(Configuration.class);
        Smb2TreeDisconnectRequest request = new Smb2TreeDisconnectRequest(mockConfig);
        byte[] buffer = new byte[3]; // Too small for 4 bytes

        // When & Then

        // Then
        assertEquals(4, bytesRead);
    }

    @Test
    @DisplayName("Should throw exception when buffer too small for reading")
    void testReadBytesWireFormatBufferTooSmall() {
        // Given
        byte[] buffer = new byte[1]; // Too small to read structure size

        // When & Then
        assertThrows(ArrayIndexOutOfBoundsException.class, () -> {

 *
 * Build up a collection by starting with [EmptyTags] and repeatedly calling [plus]. Each such call
 * returns a new instance.
 *
 * This collection is optimized for safe concurrent access over a very small number of elements.
 *
 * This collection and is expected to hold fewer than 10 elements. Each operation is _O(N)_, and so
 * building an instance with _N_ elements is _O(N**2)_.
 */
internal sealed class Tags {
  /**

- Favour a working external library if appropriate.  There are many examples of OkHttp libraries that can sit on top or hook in via existing APIs.
- Get working code on a personal branch with tests before you submit a PR.
- OkHttp is a small and light dependency.  Don't introduce new dependencies or major new functionality.

    int NT_STATUS_MORE_PROCESSING_REQUIRED = 0xC0000016;
    /** Access is denied */
    int NT_STATUS_ACCESS_DENIED = 0xC0000022;
    /** The data area passed to a system call is too small */
    int NT_STATUS_BUFFER_TOO_SMALL = 0xC0000023;
    /** The object name is invalid */
    int NT_STATUS_OBJECT_NAME_INVALID = 0xC0000033;
    /** The object was not found */

        assertEquals(0xFFFFFFFF, response.getMaximalAccess());
    }

    @Test
    @DisplayName("Should handle buffer too small for reading")
    void testBufferTooSmall() {
        // Given
        byte[] buffer = new byte[15]; // Too small for 16-byte structure
        SMBUtil.writeInt2(16, buffer, 0);

        // When & Then
        assertThrows(ArrayIndexOutOfBoundsException.class, () -> {

                        }
                    }
                } catch (final SmbException se) {
                    // Ignore errors on the final small read - we already got substantial data
                    log.trace("Final small read failed, ignoring", se);
                }
            }

            return (int) (this.fp - start);
        }
    }

    /**