Generate JSON schema from Java class

Question

I have a POJO class:

public class Stock {
 int id;
 String name;
 Date date;
}

Are there any annotations or development framework/API that can co

Answer 1

public static String getJsonSchema(Class clazz) throws IOException {
         Field[] fields = clazz.getDeclaredFields();
         List> map=new ArrayList>();
         for (Field field : fields) {
             HashMap objMap=new  HashMap();
             objMap.put("name", field.getName());
             objMap.put("type", field.getType().getSimpleName());
             objMap.put("format", "");
             map.add(objMap);
         }
         ObjectMapper mapper = new ObjectMapper();
         String json = mapper.writeValueAsString(map);

       return json;
    }