diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/FindDeviceCommand.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/FindDeviceCommand.java
index 433bb9faa..aa3d694bc 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/FindDeviceCommand.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/FindDeviceCommand.java
@@ -1,7 +1,3 @@
-package nodomain.freeyourgadget.gadgetbridge.devices.lefun.commands;
-
-import java.nio.ByteBuffer;
-
 /*  Copyright (C) 2016-2020 Andreas Shimokawa, Carsten Pfeiffer, Daniele
     Gobbetti
     Copyright (C) 2020 Yukai Li
@@ -20,6 +16,10 @@ import java.nio.ByteBuffer;
 
     You should have received a copy of the GNU Affero General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+package nodomain.freeyourgadget.gadgetbridge.devices.lefun.commands;
+
+import java.nio.ByteBuffer;
+
 import nodomain.freeyourgadget.gadgetbridge.devices.lefun.LefunConstants;
 
 public class FindDeviceCommand extends BaseCommand {
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/GetFirmwareInfoCommand.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/GetFirmwareInfoCommand.java
index 301efdff9..5dc94bd65 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/GetFirmwareInfoCommand.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/GetFirmwareInfoCommand.java
@@ -1,6 +1,3 @@
-package nodomain.freeyourgadget.gadgetbridge.devices.lefun.commands;
-
-import java.nio.ByteBuffer;
 /*  Copyright (C) 2016-2020 Andreas Shimokawa, Carsten Pfeiffer, Daniele
     Gobbetti
     Copyright (C) 2020 Yukai Li
@@ -19,6 +16,9 @@ import java.nio.ByteBuffer;
 
     You should have received a copy of the GNU Affero General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+package nodomain.freeyourgadget.gadgetbridge.devices.lefun.commands;
+
+import java.nio.ByteBuffer;
 import java.nio.charset.StandardCharsets;
 
 import nodomain.freeyourgadget.gadgetbridge.devices.lefun.LefunConstants;
@@ -59,7 +59,7 @@ public class GetFirmwareInfoCommand extends BaseCommand {
     protected void deserializeParams(byte id, ByteBuffer params) {
         validateIdAndLength(id, params, LefunConstants.CMD_FIRMWARE_INFO, 16);
 
-        supportCode = (short)(params.get() | (params.get() << 8));
+        supportCode = (short) (params.get() | (params.get() << 8));
         devTypeReserveCode = params.getShort();
         byte[] typeCodeBytes = new byte[4];
         params.get(typeCodeBytes);
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/GetPpgDataCommand.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/GetPpgDataCommand.java
index 03b2e4246..96e1e08a3 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/GetPpgDataCommand.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/GetPpgDataCommand.java
@@ -1,3 +1,21 @@
+/*  Copyright (C) 2016-2020 Andreas Shimokawa, Carsten Pfeiffer, Daniele
+    Gobbetti
+    Copyright (C) 2020 Yukai Li
+
+    This file is part of Gadgetbridge.
+
+    Gadgetbridge is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Gadgetbridge is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 package nodomain.freeyourgadget.gadgetbridge.devices.lefun.commands;
 
 import java.nio.ByteBuffer;
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/GetSleepDataCommand.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/GetSleepDataCommand.java
index c0ebc6381..00fa6c0bf 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/GetSleepDataCommand.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/GetSleepDataCommand.java
@@ -1,5 +1,3 @@
-package nodomain.freeyourgadget.gadgetbridge.devices.lefun.commands;
-
 /*  Copyright (C) 2016-2020 Andreas Shimokawa, Carsten Pfeiffer, Daniele
     Gobbetti
     Copyright (C) 2020 Yukai Li
@@ -18,6 +16,8 @@ package nodomain.freeyourgadget.gadgetbridge.devices.lefun.commands;
 
     You should have received a copy of the GNU Affero General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+package nodomain.freeyourgadget.gadgetbridge.devices.lefun.commands;
+
 import java.nio.ByteBuffer;
 
 import nodomain.freeyourgadget.gadgetbridge.devices.lefun.LefunConstants;
diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/SetLanguageCommand.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/SetLanguageCommand.java
index 63455fac2..1ea1e7d06 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/SetLanguageCommand.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/lefun/commands/SetLanguageCommand.java
@@ -1,9 +1,3 @@
-package nodomain.freeyourgadget.gadgetbridge.devices.lefun.commands;
-
-import java.nio.ByteBuffer;
-
-import nodomain.freeyourgadget.gadgetbridge.devices.lefun.LefunConstants;
-
 /*  Copyright (C) 2016-2020 Andreas Shimokawa, Carsten Pfeiffer, Daniele
     Gobbetti
     Copyright (C) 2020 Yukai Li
@@ -22,6 +16,12 @@ import nodomain.freeyourgadget.gadgetbridge.devices.lefun.LefunConstants;
 
     You should have received a copy of the GNU Affero General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+package nodomain.freeyourgadget.gadgetbridge.devices.lefun.commands;
+
+import java.nio.ByteBuffer;
+
+import nodomain.freeyourgadget.gadgetbridge.devices.lefun.LefunConstants;
+
 public class SetLanguageCommand extends BaseCommand {
     private byte language;