/**
     * {@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

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 {

    }

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

    /**
     * {@inheritDoc}

    }
}
```

## 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;

            dataLength += this.outputData.size();
        }
        return size8(size + dataLength);
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.internal.smb2.ServerMessageBlock2#writeBytesWireFormat(byte[], int)
     */
    @Override
    protected int writeBytesWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;
        SMBUtil.writeInt2(57, dst, dstIndex);

            // Verify command is set to SMB2_ECHO (0x000D)
            assertEquals(0x000D, request.getCommand());

            // Verify configuration is set
            Field configField = ServerMessageBlock2.class.getDeclaredField("config");
            configField.setAccessible(true);
            assertEquals(mockConfig, configField.get(request));
        }

        @Test

                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 {

                size += 8 + size8(ncr.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(36, 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 Smb2CloseRequest functionality
 */
@DisplayName("Smb2CloseRequest Tests")
class Smb2CloseRequestTest {

import jcifs.internal.smb1.trans.SmbComTransaction;
import jcifs.internal.smb1.trans2.Trans2FindFirst2;
import jcifs.internal.smb1.trans2.Trans2FindFirst2Response;
import jcifs.internal.smb2.ServerMessageBlock2;
import jcifs.internal.smb2.ioctl.Smb2IoctlRequest;
import jcifs.internal.smb2.ioctl.Smb2IoctlResponse;
import jcifs.internal.smb2.ioctl.ValidateNegotiateInfoRequest;