import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.SidResolver;
import jcifs.dcerpc.rpc;

class SIDTest {

    // Helper to build a minimal sid_t
    private static rpc.sid_t buildSidT(byte revision, byte[] identAuth, int... subs) {
        rpc.sid_t s = new rpc.sid_t();
        s.revision = revision;
        s.sub_authority_count = (byte) subs.length;

    }

    /**
     * Constructs a SID from an RPC sid_t structure.
     *
     * @param sid the RPC sid_t structure
     * @param type the SID type
     * @param domainName the domain name for this SID
     * @param acctName the account name for this SID
     * @param decrementAuthority whether to decrement the authority count
     */

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import jcifs.dcerpc.rpc;

class MsrpcSamrOpenDomainTest {

    @Mock
    private SamrPolicyHandle mockHandle;
    @Mock
    private rpc.sid_t mockSid;
    @Mock
    private SamrDomainHandle mockDomainHandle;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);

		i++
	}
}

// updateMetacacheListing will update the metacache listing.
func (o *listPathOptions) updateMetacacheListing(m metacache, rpc *peerRESTClient) (metacache, error) {
	if rpc == nil {
		return localMetacacheMgr.updateCacheEntry(m)
	}
	return rpc.UpdateMetacacheListing(context.Background(), m)
}

func getMetacacheBlockInfo(fi FileInfo, block int) (*metacacheBlock, error) {
	var tmp metacacheBlock

        // Shutdown scheduler
        scheduler.shutdown();
        
        // Close RPC client
        if (rpcClient != null) {
            rpcClient.close();
        }
    }
}
```

### 4.4 Witness RPC Client
```java
package jcifs.internal.witness;

import jcifs.dcerpc.*;
import jcifs.dcerpc.rpc.*;

public class WitnessRpcClient implements AutoCloseable {

 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.dcerpc.msrpc;

import jcifs.dcerpc.rpc.policy_handle;

/**
 * Microsoft RPC SAM close handle request.
 * This class implements the SAMR close handle operation.
 *
 * @author mbechler
 */
public class MsrpcSamrCloseHandle extends samr.SamrCloseHandle {

    /**

    }

    private static short S(final int i) {
        return (short) (i & 0xFFFF);
    }

    /**
     * Constructs a UUID from an existing rpc.uuid_t object
     *
     * @param uuid
     *            wrapped uuid object to copy values from
     */
    public UUID(final rpc.uuid_t uuid) {
        this.time_low = uuid.time_low;
        this.time_mid = uuid.time_mid;
        this.time_hi_and_version = uuid.time_hi_and_version;

    /**
     * Creates a new WitnessHeartbeat RPC message.
     */
    public WitnessHeartbeatMessage() {
        super(WITNESS_HEARTBEAT);
        this.contextHandle = new byte[20];
        this.sequenceNumber = 0;
        this.responseSequenceNumber = 0;
        this.heartbeatInterval = 0;
    }

    /**
     * Creates a new WitnessHeartbeat RPC message with the specified parameters.
     *

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.dcerpc.msrpc;

import jcifs.dcerpc.rpc.policy_handle;
import jcifs.dcerpc.msrpc.lsarpc.LsarClose;

/**
 * Microsoft RPC LSA close handle request.
 * This class implements the LSARPC close handle operation.
 */
public class MsrpcLsarClose extends LsarClose {

    /**

        // Create a properly formatted response message
        NdrBuffer buf = new NdrBuffer(new byte[1024], 0);

        // Manually encode a response header
        buf.enc_ndr_small(5); // RPC version
        buf.enc_ndr_small(0); // minor version
        buf.enc_ndr_small(2); // ptype = 2 (Response)
        buf.enc_ndr_small(0); // flags
        buf.enc_ndr_long(0x00000010); // data representation