oldComplexJson.json

{
    "10": [
        "\b\u0006\u0012\u0005\rff\uffa6\uffbf",
        "\b\uff92\uffff\uffff\uffff\uffff\uffff\uffff\uffff\uffff\u0001\u0012\u0005\r\u0000\u0000\u0000\u0000"
    ],
    "2": [
        "world"
    ],
    "3": [
        "I",
        "am"
    ],
    "4": [
        "\b\u001e\u0012\u0005\r\uff9a\uff99\uff99?"
    ],
    "5": [
        51232271120233
    ],
    "6": [
        6
    ],
    "7": [
        1075000115
    ],
    "8": [
        4614253070214989087
    ],
    "9": [
        {
            "1": [
                "hi"
            ],
            "2": [
                1084647014
            ],
            "3": [
                23
            ],
            "4": [
                44232993922327
            ]
        }
    ],
    "knownfield": "hello"
}

oldComplexJsonJackson.json

{
    "10": [
        "CAYSBQ1mZqa/",
        "CJL//////////wESBQ0AAAAA"
    ],
    "2": [
        "d29ybGQ="
    ],
    "3": [
        "SQ==",
        "YW0="
    ],
    "4": [
        "CB4SBQ2amZk/"
    ],
    "5": [
        51232271120233
    ],
    "6": [
        6
    ],
    "7": [
        1075000115
    ],
    "8": [
        4614253070214989087
    ],
    "9": [
        {
            "1": [
                "aGk="
            ],
            "2": [
                1084647014
            ],
            "3": [
                23
            ],
            "4": [
                44232993922327
            ]
        }
    ],
    "knownfield": "hello"
}

oldComplexJsonJackson.json.bin

scr@hothowever-lm]$ od -t x1c oldComplexJson.json.bin
0000000    0a  05  68  65  6c  6c  6f  12  05  77  6f  72  6c  64  1a  01
          \n 005   h   e   l   l   o 022 005   w   o   r   l   d 032 001
0000020    49  1a  02  61  6d  22  09  08  1e  12  05  0d  9a  99  99  3f
           I 032 002   a   m   "  \t  \b 036 022 005  \r 232 231 231   ?
0000040    28  e9  ee  c8  8a  87  d3  0b  30  06  3d  33  33  13  40  41
           ( 351 356   Ȋ  ** 207 323  \v   0 006   =   3   3 023   @   A
0000060    1f  85  eb  51  b8  1e  09  40  4b  0a  02  68  69  15  66  66
         037 205 353   Q 270 036  \t   @   K  \n 002   h   i 025   f   f
0000100    a6  40  18  17  20  97  ba  8f  df  ac  87  0a  4c  52  09  08
         246   @ 030 027     227 272 217 337 254 207  \n   L   R  \t  \b
0000120    06  12  05  0d  66  66  a6  bf  52  12  08  92  ff  ff  ff  ff
         006 022 005  \r   f   f 246 277   R 022  \b 222 377 377 377 377
0000140    ff  ff  ff  ff  01  12  05  0d  00  00  00  00                
         377 377 377 377 001 022 005  \r  \0  \0  \0  \0                
0000154