assertTrue(resp instanceof ServerMessageBlock2);
    }

    @Test
    @DisplayName("Should return correct OVERHEAD constant value")
    void testOverheadConstant() {
        // Then
        assertEquals(Smb2Constants.SMB2_HEADER_LENGTH + 16, Smb2ReadResponse.OVERHEAD);
    }

    @Test
    @DisplayName("Should initially have zero data length")
    void testInitialDataLength() {
        // Then

            assertArrayEquals(newFileId, Arrays.copyOfRange(buffer, 16, 32));
        }

        @Test
        @DisplayName("Should maintain constant overhead")
        void testOverheadConstant() {
            assertEquals(Smb2Constants.SMB2_HEADER_LENGTH + 48, Smb2WriteRequest.OVERHEAD);
        }

        @Test
        @DisplayName("Should handle boundary conditions")
        void testBoundaryConditions() {

        assertTrue(response instanceof ServerMessageBlock2);
    }

    @Test
    @DisplayName("Test OVERHEAD constant value")
    void testOverheadConstant() {
        assertEquals(72, Smb2QueryDirectoryResponse.OVERHEAD);
        assertEquals(Smb2Constants.SMB2_HEADER_LENGTH + 8, Smb2QueryDirectoryResponse.OVERHEAD);
    }

    @Test
    @DisplayName("Test readBytesWireFormat with buffer boundary conditions")

            outputBufferLengthField.setAccessible(true);
            int actualOutputBufferLength = (int) outputBufferLengthField.get(request);
            int expectedLength = (Math.min(65536, 65536) - Smb2QueryInfoResponse.OVERHEAD) & ~0x7;
            assertEquals(expectedLength, actualOutputBufferLength);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    }

    @Test

        this.maxReadSize =
                Math.min(maxBufferSize - Smb2ReadResponse.OVERHEAD, Math.min(tc.getConfig().getReceiveBufferSize(), this.maxReadSize))
                        & ~0x7;
        this.maxWriteSize =
                Math.min(maxBufferSize - Smb2WriteRequest.OVERHEAD, Math.min(tc.getConfig().getSendBufferSize(), this.maxWriteSize)) & ~0x7;

        assertTrue(response instanceof ServerMessageBlock2);
    }

    @Test
    @DisplayName("Test OVERHEAD constant value")
    void testOverheadConstant() {
        assertEquals(72, Smb2QueryInfoResponse.OVERHEAD);
        assertEquals(Smb2Constants.SMB2_HEADER_LENGTH + 8, Smb2QueryInfoResponse.OVERHEAD);
    }

    @ParameterizedTest
    @CsvSource({ "1, 6", // SMB2_0_INFO_FILE, FILE_INTERNAL_INFO

        System.out.printf("  Avg release time: %.2f ns%n", avgReleaseTimeNs);

        // Verify O(1) performance - should be reasonably fast (allowing for JVM overhead)
        assertTrue(avgAllocTimeNs < 10000, "Average allocation should be under 10000ns (O(1) performance)");
        assertTrue(avgReleaseTimeNs < 10000, "Average release should be under 10000ns (O(1) performance)");

- **Memory efficient** - Specialized collections like `LruHashMap` and `ArrayMap` for memory-conscious applications
- **Java 21 features** - Switch expressions and pattern matching for reduced overhead

## 🧪 Building and Testing

### Development Setup
```bash
# Clone the repository
git clone https://github.com/codelibs/corelib.git
cd corelib

# Compile the project
mvn clean compile

/**
 * A high-performance utility class for encrypting and decrypting data using cached {@link Cipher} instances.
 * <p>
 * This class provides efficient encryption/decryption by pooling and reusing cipher instances,
 * reducing the overhead of repeated cipher initialization. It supports both string-based keys
 * and {@link Key} objects, with configurable algorithms and character encodings.
 * </p>
 * <p>
 * <strong>Key Features:</strong>
 * </p>
 * <ul>

     */
    int getListCount();

    /**
     *
     * Property {@code jcifs.smb.client.listSize} (int, default 65435)
     *
     * @return maximum data size for list/info requests (known overhead is subtracted)
     */
    int getListSize();

    /**
     *
     *
     * Property {@code jcifs.smb.client.attrExpirationPeriod} (int, 5000)
     *
     * @return timeout of file attribute cache