Url query to parameter map

queryToMap.java

    private Map<String, String> queryToMap(String query) throws UnsupportedEncodingException {
        Map<String, String> parameters = new HashMap<>();
        String[] queryArray = query.split("&");
        for (String string : queryArray) {
            int idx = string.indexOf("=");
            parameters.put(decode(string.substring(0, idx), "UTF-8"), decode(string.substring(idx + 1), "UTF-8"));
        }
        return parameters;
    }

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