map转String提示 java.util.LinkedHashMap cannot be cast to java.lang.String

JSONArray safeCheckList = safeRecordJson.getJSONArray("safeCheckList");
for (Object o : safeRecordCheckJson) {
            String toJSONString = JSONObject.toJSONString(o);
            JSONObject object = JSONObject.parseObject(toJSONString);
            SysSafeCheckList sysSafeCheckList = new SysSafeCheckList();
            sysSafeCheckList.setAreaName(object.getString("areaName"));
            sysSafeCheckList.setHiddenDanger(Integer.valueOf(object.getString("hiddenDanger")));
            sysSafeCheckList.setCheckContents(object.getString("checkContents"));
            sysSafeCheckList.setRemarks(object.getString("remarks"));

            sysSafeCheckList.setRecordId(recordId);

            sysSafeCheckListMapper.insert(sysSafeCheckList);

        }
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