IoTCore sdk

<dependency>
  <groupId>com.baidu.iot</groupId>
  <artifactId>iot-device-sdk-avatar-deviceside</artifactId>
  <version>1.0.2</version>
</dependency>

String iotCoreId = "yourIoTCoreId"; 
String deviceName = "yourDeviceKey";  
String username = "yourIoTCoreId/yourDeviceKey";
char[] password = "yourDeviceSecret".toCharArray();

IoTDeviceFactory factory = new IoTDeviceFactory(IoTDeviceFactory.Config.builder()
        .iotCoreId(iotCoreId)
        .build());

Device device = factory.getDevice(deviceName,
                MqttConfigFactory.genPlainMqttConfig(iotCoreId, username, password))
                .blockingGet();

Map<PropertyKey, PropertyValue> properties = new HashMap<>();
properties.put(new PropertyKey("test"), new PropertyValue("\"test value\""));
device.updateReported(properties).blockingSubscribe(new DisposableSingleObserver<Status>() {
    @Override
    public void onSuccess(@NonNull Status status) {
        System.out.println("Update reported success, status:" + status);
    }

    @Override
    public void onError(@NonNull Throwable e) {
        System.out.println("Update reported failure");
        e.printStackTrace();
    }
});