private void runFilenameTest ( String... names ) throws CIFSException, UnknownHostException, MalformedURLException {
        try ( SmbFile d = createTestDirectory() ) {
            try {

                for ( String name : names ) {
                    try ( SmbResource tf = new SmbFile(d, name) ) {
                        tf.createNewFile();
                    }
                }

     * <code>SmbFile</code> references a workgroup, the name of the workgroup
     * is returned. If this <code>SmbFile</code> refers to the root of this
     * SMB network hierarchy, <code>null</code> is returned.
     * 
     * @return The server or workgroup name or <code>null</code> if this
     *         <code>SmbFile</code> refers to the root <code>smb://</code> resource.
     */

        try ( SmbFile f = createTestDirectory() ) {
            try ( SmbFile a = new SmbFile(f, "a.txt");
                  SmbFile b = new SmbFile(f, "b.txt");
                  SmbFile c = new SmbFile(f, "c.bar") ) {

                a.createNewFile();
                b.createNewFile();
                c.createNewFile();

                SmbFile[] files = f.listFiles(new DosFileFilter("*.txt", -1));

    int numIter = 1;
    long delay = 100;
    String url = null;
    int numComplete = 0;
    long ltime = 0L;

    public void run()
    {
        try {
            SmbFile f = new SmbFile(url);
            SmbFile d = new SmbFile(f.getParent());
            byte[] buf = new byte[1024];

            for (int ii = 0; ii < numIter; ii++) {

                synchronized (this) {

        // shareAccess
        this.shareAccess = shareAccess;

        // createDisposition
        if(( flags & SmbFile.O_TRUNC ) == SmbFile.O_TRUNC ) {
            // truncate the file
            if(( flags & SmbFile.O_CREAT ) == SmbFile.O_CREAT ) {
                // create it if necessary
                createDisposition = FILE_OVERWRITE_IF;
            } else {

        // fileAttributes
        fileAttributes = 0;

        // openFunction
        if(( flags & SmbFile.O_TRUNC ) == SmbFile.O_TRUNC ) {
            // truncate the file
            if(( flags & SmbFile.O_CREAT ) == SmbFile.O_CREAT ) {
                // create it if necessary
                openFunction = OPEN_FN_TRUNC | OPEN_FN_CREATE;
            } else {

        this( new SmbFile( url ));
    }

/**
 * Creates an {@link java.io.InputStream} for reading bytes from a file on
 * an SMB server represented by the {@link jcifs.smb1.smb1.SmbFile} parameter. See
 * {@link jcifs.smb1.smb1.SmbFile} for a detailed description and examples of
 * the smb URL syntax.
 *
 * @param file An <code>SmbFile</code> specifying the file to read from
 */

     * @param b
     * @param bsize
     * @param w
     * @param dh
     * @param sh
     * @param req
     * @param resp
     * @throws SmbException
     */
    static void copyFile ( SmbFile src, SmbFile dest, byte[][] b, int bsize, WriterThread w, SmbTreeHandleImpl sh, SmbTreeHandleImpl dh )
            throws SmbException {

        if ( sh.isSMB2() && dh.isSMB2() && sh.isSameTree(dh) ) {
            try {

            List<SmbFile> list = new ArrayList<>();
            while ( it.hasNext() ) {
                try ( SmbResource n = it.next() ) {
                    if ( n instanceof SmbFile ) {
                        list.add((SmbFile) n);
                    }
                }
            }
            return list.toArray(new SmbFile[list.size()]);
        }

        Assert.assertTrue(f1 instanceof SmbFile);
        Assert.assertTrue(f2 instanceof SmbFile);
        try ( SmbTreeHandleInternal th1 = (SmbTreeHandleInternal) ( (SmbFile) f1 ).getTreeHandle();
              SmbTreeHandleInternal th2 = (SmbTreeHandleInternal) ( (SmbFile) f2 ).getTreeHandle();
              SmbSessionInternal sess1 = th1.getSession().unwrap(SmbSessionInternal.class);