JsonToJava.java

   public static ObjectMapper configureMapper() {
        ObjectMapper mapper = new ObjectMapper();
        mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
        mapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
        mapper.registerModule(new JavaTimeModule());
        mapper.disable(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS);
        return mapper;
    }

    public static void main(String[] args) throws JsonProcessingException {
        String jsonData = "{\"success\":\"true\",\"message\":\"\",\"data\":[{\"employeId\":\"jp\"}]}";

        Root root = configureMapper().readValue(jsonData, Root.class);
        System.out.println(root);

    }

}

class Employee {
    public String employeeId;
    public String employeId;
}

class Root {
    public boolean success;
    public String message;
    @JsonProperty("data")
    public List<Employee> data1  = new ArrayList<>();
}