}
        file.open(openFlags, access | SmbConstants.FILE_WRITE_DATA, SmbFile.ATTR_NORMAL, 0);
        this.openFlags &= ~(SmbFile.O_CREAT | SmbFile.O_TRUNC); /* in case close and reopen */
        writeSize = file.tree.session.transport.snd_buf_size - 70;

        useNTSmbs = file.tree.session.transport.hasCapability(SmbConstants.CAP_NT_SMBS);
        if (useNTSmbs) {
            reqx = new SmbComWriteAndX();

        }

        if ((capabilities & SmbConstants.CAP_UNICODE) == 0) {
            // server doesn't want unicode
            if (FORCE_UNICODE) {
                capabilities |= SmbConstants.CAP_UNICODE;
            } else {
                useUnicode = false;
                flags2 &= 0xFFFF ^ SmbConstants.FLAGS2_UNICODE;
            }
        }
    }

    @Override

    /**
     * Default constructor for SMB1 URL handler.
     */
    public Handler() {
    }

    @Override
    protected int getDefaultPort() {
        return SmbConstants.DEFAULT_PORT;
    }

    @Override
    public URLConnection openConnection(final URL u) throws IOException {
        return new SmbFile(u);
    }

    @Override

        case TIME_1601_NANOS_64BE -> {
            t = (date.getTime() + SmbConstants.MILLISECONDS_BETWEEN_1970_AND_1601) * 10000L;
            yield enc_uint64be(t, dst, di);
        }
        case TIME_1601_NANOS_64LE -> {
            t = (date.getTime() + SmbConstants.MILLISECONDS_BETWEEN_1970_AND_1601) * 10000L;
            yield enc_uint64le(t, dst, di);
        }

import org.mockito.ArgumentCaptor;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

import jcifs.CIFSException;
import jcifs.Configuration;
import jcifs.FileNotifyInformation;
import jcifs.SmbConstants;
import jcifs.internal.CommonServerMessageBlockRequest;
import jcifs.internal.NotifyResponse;
import jcifs.internal.smb1.trans.nt.NtTransNotifyChange;
import jcifs.internal.smb2.notify.Smb2ChangeNotifyRequest;

/**

import jakarta.servlet.http.HttpSession;
import jcifs.Address;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.Config;
import jcifs.DfsReferralData;
import jcifs.NameServiceClient;
import jcifs.SmbConstants;
import jcifs.config.PropertyConfiguration;
import jcifs.context.BaseContext;
import jcifs.netbios.NbtAddress;
import jcifs.smb.DfsReferral;
import jcifs.smb.NtStatus;
import jcifs.smb.NtlmPasswordAuthentication;

 */
package jcifs.pac;

import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.math.BigInteger;
import java.util.Date;

import jcifs.SmbConstants;
import jcifs.smb.SID;

/**
 * Input stream for reading PAC data structures with proper alignment and byte ordering.
 * Handles little-endian byte order and data alignment requirements of PAC structures.
 */

import java.util.concurrent.atomic.AtomicLong;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.Address;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.SmbConstants;
import jcifs.SmbTransport;
import jcifs.SmbTransportPool;
import jcifs.util.transport.TransportException;

/**
 * Implementation of the SMB transport pool for managing SMB connections.

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.Configuration;
import jcifs.DfsReferralData;
import jcifs.RuntimeCIFSException;
import jcifs.SmbConstants;
import jcifs.SmbResourceLocator;
import jcifs.SmbTreeHandle;
import jcifs.internal.CommonServerMessageBlockRequest;
import jcifs.internal.CommonServerMessageBlockResponse;
import jcifs.internal.RequestWithPath;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.math.BigInteger;
import java.util.Date;

import org.junit.jupiter.api.Test;

import jcifs.SmbConstants;
import jcifs.smb.SID;

public class PacDataInputStreamTest {

    // Helper to create PacDataInputStream from a byte array
    private PacDataInputStream createInputStream(byte[] data) throws IOException {