Java Utililty Methods Json Parse

Type type = new TypeToken<Map<String, String>>() {
}.getType();
return G.fromJson(json, type);

ObjectMapper objectMapper = new ObjectMapper();
try {
    objectMapper.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
    return objectMapper.readValue(json, clazz);
} catch (Exception e) {
    e.printStackTrace();
    return null;

if (s == null)
    return null;
StringBuffer b = new StringBuffer();
b.append("\"");
CharacterIterator it = new StringCharacterIterator(s);
for (char c = it.first(); c != CharacterIterator.DONE; c = it.next()) {
    if (c == '"')
        b.append("\\\"");
...

parse.

DateFormat format = new SimpleDateFormat("yyyy-MM-dd");
Date d = format.parse(jsonobj.getInt("year") + "-" + jsonobj.getInt("month") + "-" + jsonobj.getInt("day"));
return d;

try {
    return mapper.get().readValue(json, tClass);
} catch (Exception e) {
    throw new RuntimeException(e);

Preconditions.checkNotNull(array);
final GregorianCalendar calendar = new GregorianCalendar(array.get(0).getAsInt(),
        array.get(1).getAsInt() - 1, array.get(2).getAsInt());
final SimpleDateFormat format = new SimpleDateFormat("dd MMMM yyyy");
return format.parse(format.format(calendar.getTime()));

JSONObject jo = new JSONObject(jsonText);
Map<String, Object> result = new HashMap<String, Object>();
for (int i = 0; i < params.length; i++) {
    result.put(params[i], jo.get(params[i]));
return result;

return parseDate(_dateStr, "yyyy-MM-dd'T'HH:mm:ss");