Buffer dump
buffer.length=167
00 A7 00 00 06 00 00 00  |........|
00 00 03 76 00 01 01 05  |...v....|
01 01 01 01 05 01 01 53  |.......S|
43 4F 54 54 01 0D 0D 41  |COTT...A|
55 54 48 5F 54 45 52 4D  |UTH_TERM|
49 4E 41 4C 01 07 07 75  |INAL...u|
6E 6B 6E 6F 77 6E 00 01  |nknown..|
0F 0F 41 55 54 48 5F 50  |..AUTH_P|
52 4F 47 52 41 4D 5F 4E  |ROGRAM_N|
4D 01 10 10 4A 44 42 43  |M...JDBC|
20 54 68 69 6E 20 43 6C  |.Thin.Cl|
69 65 6E 74 00 01 0C 0C  |ient....|
41 55 54 48 5F 4D 41 43  |AUTH_MAC|
48 49 4E 45 01 0D 0D 6A  |HINE...j|
64 65 6C 61 76 61 72 2D  |delavar-|
6C 61 70 32 00 01 08 08  |lap2....|
41 55 54 48 5F 50 49 44  |AUTH_PID|
01 04 04 31 32 33 34 00  |...1234.|
01 08 08 41 55 54 48 5F  |...AUTH_|
53 49 44 01 08 08 6A 64  |SID...jd|
65 6C 61 76 61 72 00     |elavar. |

static String dump(byte[] buffer, int offset, int len) {
    java.nio.charset.Charset asciiCs = java.nio.charset.Charset.forName("ASCII");
    int bytes = 0;
    StringBuffer sb = new StringBuffer();
    sb.append("Buffer dumpn");
    sb.append("buffer.length="+buffer.length+"n");
    sb.append("offset       ="+offset+"n");
    sb.append("len          ="+len+"n");

    java.nio.ByteBuffer buff = java.nio.ByteBuffer.allocate(8);
    buff.position(0);
    buff.limit(buff.capacity());
    int j;
    String strTemp;
    for ( int i=offset; i<len; i+=8) {
      for (j=0; j<8 && bytes<len-1; j++){
        bytes = i+j;
        strTemp = Integer.toHexString(((int)buffer[bytes])&0xFF);
        while(strTemp.length() < 2){ strTemp = "0" + strTemp; }
        sb.append(strTemp);
        sb.append(" ");
        if(buffer[bytes] > 33 && buffer[bytes] < 127)
          buff.put(buffer[bytes]);
        else
          buff.put((byte)'.');
      }
      while(j <= 7 ) {
        sb.append("   ");
        j++;
      }
      sb.append("|");
      buff.rewind();
      java.nio.CharBuffer cb = asciiCs.decode(buff);
      buff.rewind();
      sb.append(" "+cb.toString()+ " |n");
    }
    sb.append("finish dumpn");
    return sb.toString();
  }
  static void dumpStdOut(byte[] buff){
    System.out.println(dump(buff,0,buff.length));
  }