- We limited the number of drives to 16 for erasure set because, erasure code shards more than 16 can become chatty and do not have any performance advantages. Additionally since 16 drive erasure set gives you tolerance of 8 drives per object by default which is plenty in any practical scenario.

        int bytesWritten = info.encode(buffer, 0);

        // Verify replaceIfExists flag
        assertEquals(1, buffer[0]);

        // Verify file name length
        int nameLength = SMBUtil.readInt4(buffer, 16);
        assertEquals(fileName.getBytes(StandardCharsets.UTF_16LE).length, nameLength);

        // Verify file name
        byte[] nameBytes = new byte[nameLength];

        // Skip context header (16 bytes) and name (4 bytes) and padding (4 bytes)
        int dataOffset = offset + 24;

        // Decode standard lease data
        byte[] keyBytes = new byte[16];
        System.arraycopy(buffer, dataOffset, keyBytes, 0, 16);
        this.leaseKey = new Smb2LeaseKey(keyBytes);
        dataOffset += 16;

        this.leaseState = SMBUtil.readInt4(buffer, dataOffset);

public class Smb2LeaseKey {
    private final byte[] key;  // 16-byte lease key
    private static final SecureRandom random = new SecureRandom();
    
    public Smb2LeaseKey() {
        this.key = new byte[16];
        random.nextBytes(this.key);
    }
    
    public Smb2LeaseKey(byte[] key) {
        if (key.length != 16) {
            throw new IllegalArgumentException("Lease key must be 16 bytes");
        }

    void testLongToHexString() {
        // Test various long values
        assertEquals("0000000000000000", Hexdump.toHexString(0L, 16));
        assertEquals("00000000000000FF", Hexdump.toHexString(255L, 16));
        assertEquals("FFFFFFFFFFFFFFFF", Hexdump.toHexString(-1L, 16));

        // Test different sizes
        assertEquals("00000000", Hexdump.toHexString(0L, 8));

        assertActivation(true, profile, newContext(null, newProperties("1.6")));
        assertActivation(true, profile, newContext(null, newProperties("1.6.0")));
        assertActivation(true, profile, newContext(null, newProperties("1.6.0_09")));
        assertActivation(true, profile, newContext(null, newProperties("1.6.0_09-b03")));
    }

    @Test
    void testVersionRangeExclusiveBounds() throws Exception {

<setting id="org.eclipse.jdt.core.formatter.insert_space_after_comma_in_method_invocation_arguments" value="insert"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_arguments_in_method_invocation" value="16"/>
<setting id="org.eclipse.jdt.core.formatter.alignment_for_throws_clause_in_constructor_declaration" value="16"/>

    void testDifferentFileIds() {
        // Given
        byte[] fileId1 = new byte[16];
        Arrays.fill(fileId1, (byte) 0x11);

        byte[] fileId2 = new byte[16];
        Arrays.fill(fileId2, (byte) 0xFF);

        byte[] fileId3 = new byte[16];
        for (int i = 0; i < 16; i++) {
            fileId3[i] = (byte) i;
        }

        // When & Then for each file ID

            bufferIndex += 4;

            // Write Reserved2 (4 bytes)
            bufferIndex += 4;

            // Write file ID (16 bytes)
            byte[] expectedFileId = createTestData(16);
            System.arraycopy(expectedFileId, 0, buffer, bufferIndex, 16);

            // Read the buffer
            int bytesRead = notification.readBytesWireFormat(buffer, 0);

            // Verify the bytes read

        
        // Name
        System.arraycopy(getName().getBytes(), 0, buffer, offset + 16, nameLen);
        
        // Data (16 bytes of reserved)
        int dataOffset = offset + 16 + nameLen;
        dataOffset = (dataOffset + 7) & ~7;  // 8-byte alignment
        
        for (int i = 0; i < 16; i++) {
            buffer[dataOffset + i] = 0;
        }
    }
    
    @Override