SmbFile d2 = new SmbFile(d, makeRandomDirectoryName()) ) {
            d1.mkdir();
            boolean renamed = false;
            try {
                d1.renameTo(d2);
                try {
                    assertTrue(d2.exists());
                    renamed = true;
                }
                finally {
                    d2.delete();
                }
            }

        '6', '7', '8', '9', 'A', 'B',
        'C', 'D', 'E', 'F'
    };

/** 
 * Generate "hexdump" output of the buffer at src like the following:
 *
 * <p><blockquote><pre>
 * 00000: 04 d2 29 00 00 01 00 00 00 00 00 01 20 45 47 46  |..)......... EGF|
 * 00010: 43 45 46 45 45 43 41 43 41 43 41 43 41 43 41 43  |CEFEECACACACACAC|
 * 00020: 41 43 41 43 41 43 41 43 41 43 41 41 44 00 00 20  |ACACACACACAAD.. |