生成Json字符串 --- Uncaught SyntaxError: missing ) after argument list

JSONArray array2 = new JSONArray();
array2.put(false);
String path = "//storage/emulated/0/spap/image/1560929771359_bridge.jpg";
JSONObject obj2 = new JSONObject();
try {
    obj2.put("file",path);
    obj2.put("size",1000);
    array2.put(obj2);
}catch (Exception e) {
    e.printStackTrace();
}
Log.e("fxz","====params:" + array2.toString());

如果org.json.JsonArray执行上述代码，结果是：

/fxz: ====params:[false,{"file":"\/\/storage\/emulated\/0\/spap\/image\/1560929771359_bridge.jpg","size":1000}]
当执行array2.put(obj2)的时候，obj2中的值被特殊处理？

将生成的字符串android端传给js，报：Uncaught SyntaxError: missing ) after argument list

JsonArray ja = new JsonArray();
String file = "/storage/emulated/0/spap/image/1560929771359_bridge.jpg";
try {
    ja.add(false);
    JsonObject o = new JsonObject();
    o.addProperty("path",file);
    o.addProperty("size",1000L);
    ja.add(o);
    Log.e("fxz","###->" + ja.toString());
}catch (Exception e) {
    e.printStackTrace();
}

如果使用com.google.gson.执行上述代码，结果是：

/fxz: ###->[false,{"path":"/storage/emulated/0/spap/image/1560929771359_bridge.jpg","size":1000}]
使用此方法没上述问题。

check WHY?

期待大牛的指导。。。。。