Convert a Map<String, String> to a POJO
Well, you can achieve that with Jackson, too. (and it seems to be more comfortable since you were considering using jackson).
Use ObjectMapper's convertValue method:
final ObjectMapper mapper = new ObjectMapper(); // jackson's objectmapperfinal MyPojo pojo = mapper.convertValue(map, MyPojo.class);No need to convert into JSON string or something else; direct conversion does much faster.
A solution with Gson:
Gson gson = new Gson();JsonElement jsonElement = gson.toJsonTree(map);MyPojo pojo = gson.fromJson(jsonElement, MyPojo.class);
if you have generic types in your class you should use TypeReference with convertValue().
final ObjectMapper mapper = new ObjectMapper();final MyPojo<MyGenericType> pojo = mapper.convertValue(map, new TypeReference<MyPojo<MyGenericType>>() {});Also you can use that to convert a pojo to java.util.Map back.
final ObjectMapper mapper = new ObjectMapper();final Map<String, Object> map = mapper.convertValue(pojo, new TypeReference<Map<String, Object>>() {});