for (final Smb2Lock l : this.locks) {
            size += l.size();
        }
        return size8(size);
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#writeBytesWireFormat(byte[], int)
     */
    @Override
    protected int writeBytesWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;
        SMBUtil.writeInt2(48, dst, dstIndex);

    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#writeBytesWireFormat(byte[], int)
     */
    @Override
    protected int writeBytesWireFormat(final byte[] dst, final int dstIndex) {
        return 0;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#readBytesWireFormat(byte[], int)
     */
    @Override

    }
}
```

## 5. Lease Break Handling

### 5.1 Lease Break Notification
```java
package jcifs.internal.smb2.lease;

import jcifs.internal.smb2.ServerMessageBlock2;

public class Smb2LeaseBreakNotification extends ServerMessageBlock2 {
    // Command code for lease break
    public static final int SMB2_OPLOCK_BREAK = 0x0012;
    
    private int structureSize;
    private int flags;

 *
 * This abstract class provides common functionality for handling
 * response messages in the SMB2/SMB3 protocol.
 *
 * @author mbechler
 */
public abstract class ServerMessageBlock2Response extends ServerMessageBlock2 implements CommonServerMessageBlockResponse {

    private boolean received;
    private boolean error;
    private Long expiration;

    private boolean verifyFailed;
    private Exception exception;

                data[index + i] = 0;
            }

            // set signed flag
            final int oldFlags = SMBUtil.readInt4(data, offset + 16);
            final int flags = oldFlags | ServerMessageBlock2.SMB2_FLAGS_SIGNED;
            SMBUtil.writeInt4(flags, data, offset + 16);

            // Create new Mac instance for thread safety without blocking other operations
            Mac mac;
            try {

     */
    private void setHeaderStart(Smb2ChangeNotifyResponse response, int headerStart) throws Exception {
        Method method = ServerMessageBlock2.class.getDeclaredMethod("getHeaderStart");
        method.setAccessible(true);

        Field field = ServerMessageBlock2.class.getDeclaredField("headerStart");
        field.setAccessible(true);
        field.setInt(response, headerStart);
    }

    /**

package jcifs.internal.smb2;

import static jcifs.internal.smb2.ServerMessageBlock2.SMB2_CANCEL;
import static jcifs.internal.smb2.ServerMessageBlock2.SMB2_FLAGS_ASYNC_COMMAND;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.Mockito.mock;

import org.mockito.junit.jupiter.MockitoSettings;
import org.mockito.quality.Strictness;

import jcifs.Configuration;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.smb2.ServerMessageBlock2;
import jcifs.internal.smb2.ServerMessageBlock2Response;
import jcifs.internal.util.SMBUtil;

/**
 * Test class for Smb2SetInfoResponse functionality
 */
@DisplayName("Smb2SetInfoResponse Tests")

    @Override
    public int size() {
        return size8(Smb2Constants.SMB2_HEADER_LENGTH + 32 + this.info.size());
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#writeBytesWireFormat(byte[], int)
     */
    @Override
    protected int writeBytesWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;
        SMBUtil.writeInt2(33, dst, dstIndex);

import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;

import jcifs.CIFSContext;
import jcifs.Configuration;
import jcifs.internal.smb2.ServerMessageBlock2;
import jcifs.internal.smb2.Smb2Constants;
import jcifs.internal.util.SMBUtil;

/**
 * Test class for Smb2FlushRequest functionality
 */
@DisplayName("Smb2FlushRequest Tests")
class Smb2FlushRequestTest {