}
```

## 4. Data Structures

### 4.1 Handle GUID Structure
```java
package jcifs.internal.smb2.persistent;

import java.util.UUID;
import java.nio.ByteBuffer;

public class HandleGuid {
    private final UUID guid;
    
    public HandleGuid() {
        this.guid = UUID.randomUUID();
    }
    
    public HandleGuid(byte[] bytes) {
        if (bytes.length != 16) {

				uids = append(uids, lri.UID)
			}

			// Delete collected uids:
			for _, uid := range uids {
				lris, ok := l.lockMap[resource]
				if !ok {
					// Just to be safe, delete uuids.
					for idx := range maxDeleteList {
						mapID := formatUUID(uid, idx)
						if _, ok := l.lockUID[mapID]; !ok {
							break
						}
						delete(l.lockUID, mapID)
					}
					continue
				}

Only MinIO generates version IDs, and they can't be edited. Version IDs are simply of `DCE 1.1 v4 UUID 4` (random data based), UUIDs are 128 bit numbers which are intended to have a high likelihood of uniqueness over space and time and are computationally difficult to guess. They are globally unique identifiers which can be locally generated without contacting a global registration authority. UUIDs are intended as unique identifiers for both mass tagging objects with an extremely short lifetime and...

        // Construct UUID from components - Java UUID expects big-endian representation
        long mostSig = ((long) data1 << 32) | ((long) (data2 & 0xFFFF) << 16) | (data3 & 0xFFFF);
        long leastSig = data4;

        this.guid = new UUID(mostSig, leastSig);
    }

    /**
     * Create a handle GUID from existing UUID
     * @param uuid the UUID to wrap
     */
    public HandleGuid(UUID uuid) {

        void testUuidTEncode() throws NdrException {
            // Given: A UUID with test values
            rpc.uuid_t uuid = new rpc.uuid_t();
            uuid.time_low = 0x12345678;
            uuid.time_mid = (short) 0x9ABC;
            uuid.time_hi_and_version = (short) 0xDEF0;
            uuid.clock_seq_hi_and_reserved = (byte) 0x11;
            uuid.clock_seq_low = (byte) 0x22;

            _src.align(4);
            if (uuid == null) {
                uuid = new uuid_t();
            }
            uuid.time_low = _src.dec_ndr_long();
            uuid.time_mid = (short) _src.dec_ndr_short();
            uuid.time_hi_and_version = (short) _src.dec_ndr_short();
            uuid.clock_seq_hi_and_reserved = (byte) _src.dec_ndr_small();
            uuid.clock_seq_low = (byte) _src.dec_ndr_small();

  }

  @Test
  fun replaceOnlyTag() {
    val uuidTag1 = UUID.randomUUID()
    val uuidTag2 = UUID.randomUUID()
    val request =
      Request
        .Builder()
        .url("https://square.com")
        .tag(UUID::class.java, uuidTag1)
        .tag(UUID::class.java, uuidTag2)
        .build()
    assertThat(request.tag(UUID::class.java)).isSameAs(uuidTag2)
  }

  @Test

 */

package jcifs.smb1.dcerpc;

/**
 * DCE/RPC protocol constants for SMB1 compatibility
 */
public interface DcerpcConstants {

    /**
     * NDR syntax UUID for DCE/RPC protocol
     */
    UUID DCERPC_UUID_SYNTAX_NDR = new UUID("8a885d04-1ceb-11c9-9fe8-08002b104860");

    /**
     * First fragment flag - indicates first fragment of a multi-fragment message
     */

 * This interface defines the constants used in DCERPC communication including
 * packet types, flags, and UUID identifiers.
 */
public interface DcerpcConstants {

    /**
     * NDR syntax UUID for DCE/RPC protocol
     */
    UUID DCERPC_UUID_SYNTAX_NDR = new UUID("8a885d04-1ceb-11c9-9fe8-08002b104860");

    /**
     * First fragment flag - indicates first fragment of a multi-fragment message

        assertEquals(endpoint, dcerpcBinding.getEndpoint(), "Endpoint should be set correctly.");
        assertNotNull(dcerpcBinding.getUuid(), "UUID should be set for a valid pipe endpoint.");
        assertEquals("4B324FC8-1670-01D3-1278-5A47BF6EE188", dcerpcBinding.getUuid().toString(), "UUID should be parsed correctly.");
        assertEquals(3, dcerpcBinding.getMajor(), "Major version should be parsed correctly.");