final int _nodes = 6;
            final int _nodei = _src.index;
            _src.advance(1 * _nodes);

            if (node == null) {
                if (_nodes < 0 || _nodes > 0xFFFF) {
                    throw new NdrException(NdrException.INVALID_CONFORMANCE);
                }
                node = new byte[_nodes];
            }
            _src = _src.derive(_nodei);

            final int _nodes = 6;
            final int _nodei = _src.index;
            _src.advance(1 * _nodes);

            if (this.node == null) {
                if (_nodes < 0 || _nodes > 0xFFFF) {
                    throw new NdrException(NdrException.INVALID_CONFORMANCE);
                }
                this.node = new byte[_nodes];
            }
            _src = _src.derive(_nodei);

        assertEquals("*SMBSERVER     ", NbtAddress.SMBSERVER_NAME);

        // Test node type constants
        assertEquals(0, NbtAddress.B_NODE);
        assertEquals(1, NbtAddress.P_NODE);
        assertEquals(2, NbtAddress.M_NODE);
        assertEquals(3, NbtAddress.H_NODE);

        // Test unknown MAC address constant
        assertNotNull(NbtAddress.UNKNOWN_MAC_ADDRESS);

        assertEquals("*SMBSERVER     ", NbtAddress.SMBSERVER_NAME);
        assertEquals(0, NbtAddress.B_NODE);
        assertEquals(1, NbtAddress.P_NODE);
        assertEquals(2, NbtAddress.M_NODE);
        assertEquals(3, NbtAddress.H_NODE);
        assertArrayEquals(new byte[] { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, NbtAddress.UNKNOWN_MAC_ADDRESS);
    }

        checkData();
        return groupName;
    }

    /**
     * Checks the node type of this address.
     * @return {@link jcifs.smb1.netbios.NbtAddress#B_NODE},
     * {@link jcifs.smb1.netbios.NbtAddress#P_NODE}, {@link jcifs.smb1.netbios.NbtAddress#M_NODE},
     * {@link jcifs.smb1.netbios.NbtAddress#H_NODE}
     *
     * @throws UnknownHostException if the host cannot be resolved to find out.
     */

     */

    public static final String SMBSERVER_NAME = "*SMBSERVER     ";

    /**
     * A B node only broadcasts name queries. This is the default if a
     * nameserver such as WINS or Samba is not specified.
     */

    public static final int B_NODE = 0;

    /**
     * A Point-to-Point node, or P node, unicasts queries to a nameserver
     * only. Natrually the <code>jcifs.netbios.nameserver</code> property must

    /**
     * Checks the node type of this address.
     *
     * @param tc
     *            context to use
     * @return {@link jcifs.netbios.NbtAddress#B_NODE},
     *         {@link jcifs.netbios.NbtAddress#P_NODE}, {@link jcifs.netbios.NbtAddress#M_NODE},
     *         {@link jcifs.netbios.NbtAddress#H_NODE}
     *
     * @throws UnknownHostException

import org.w3c.dom.Node;

/**
 * The XPathAPI class provides methods to evaluate XPath expressions and select nodes or node lists from an XML document.
 * It uses the javax.xml.xpath.XPath and javax.xml.xpath.XPathFactory classes to create and evaluate XPath expressions.
 *
 * <p>Example usage:</p>
 * <pre>
 * {@code
 * XPathAPI xPathAPI = new XPathAPI();

        src[srcIndex + 35] = 0x24; // 00100100 - P-node, active

        // M-node (10)
        System.arraycopy("MNODE           ".getBytes("US-ASCII"), 0, src, srcIndex + 37, 16);
        src[srcIndex + 52] = 0x00;
        src[srcIndex + 53] = 0x44; // 01000100 - M-node, active

        // H-node (11)
        System.arraycopy("HNODE           ".getBytes("US-ASCII"), 0, src, srcIndex + 55, 16);
        src[srcIndex + 70] = 0x00;

    }

    /**
     * Gets the XPath expression for selecting target nodes.
     *
     * @return the target node path
     */
    public String getTargetNodePath() {
        return targetNodePath;
    }

    /**
     * Sets the XPath expression for selecting target nodes.
     *
     * @param targetNodePath the target node path to set
     */