Problems with JSONArray randomize

I'm trying to randomize JSON array this way:

ArrayList<Integer> intArr1 = new ArrayList<>(myJSONarr.length());
        for (int i = 0; i < myJSONarr.length(); i++) {
            intArr1.add(i);
        }
        Collections.shuffle(intArr1);
        for (int i = 0; i < intArr1.size(); i++) {
            myJSONarr.put(i, myJSONarr.getJSONObject(intArr1.get(i)));
            if (i == (myJSONarr.length() - 1))
                break;
        }

As a result of this not only JSON objects are randomizing, but also keys and values. I mean, I had an array like this:

[ {"id":"0","hieroglyph":"水","pinyin":"Shuǐ","pinyin_num":"Shui3","russian":["вода"],"hsk":"1"}, {"id":"1","hieroglyph":"人","pinyin":"Rén","pinyin_num":"Re2n","russian":["человек"],"hsk":"1"}, {"id":"2","hieroglyph":"日","pinyin":"Rì","pinyin_num":"Ri4","russian":["день"],"hsk":"1"}, {"id":"3","hieroglyph":"不","pinyin":"Bù","pinyin_num":"Bu4","russian":["нет"],"hsk":"1"}, {"id":"4","hieroglyph":"少","pinyin":"Shǎo","pinyin_num":"Sha3o","russian":["мало"],"hsk":"1"}]

And after randomize it looks like this

[{"id":"2","hieroglyph":"日","pinyin":"Rì","pinyin_num":"Ri4","russian":["день"],"hsk":"1"}, {"id":"2","hieroglyph":"日","pinyin":"Rì","pinyin_num":"Ri4","russian":["день"],"hsk":"1"}, {"id":"4","hieroglyph":"少","pinyin":"Shǎo","pinyin_num":"Sha3o","russian":["мало"],"hsk":"1"}, {"id":"3","hieroglyph":"不","pinyin":"Bù","pinyin_num":"Bu4","russian":["нет"],"hsk":"1"}, {"id":"2","hieroglyph":"日","pinyin":"Rì","pinyin_num":"Ri4","russian":["день"],"hsk":"1"}]