` public static final ObjectMapper objectMapper = new ObjectMapper();

public static JavaType getCollectionType(Class
     collectionClass, Class
    ... elementClasses) {    return objectMapper.getTypeFactory().constructParametricType(collectionClass, elementClasses);}JavaType javaType = getCollectionType(Map.class, String.class, Object.class);            Map
    
      data = objectMapper.readValue(strData, javaType);`