1 files changed, 9 insertions, 16 deletions
diff --git a/src/main/java/org/traccar/protocol/RoboTrackFrameDecoder.java b/src/main/java/org/traccar/protocol/RoboTrackFrameDecoder.java
index 85ed6c76f..237519a23 100644
--- a/src/main/java/org/traccar/protocol/RoboTrackFrameDecoder.java
+++ b/src/main/java/org/traccar/protocol/RoboTrackFrameDecoder.java
@@ -23,22 +23,15 @@ import org.traccar.BaseFrameDecoder;
 public class RoboTrackFrameDecoder extends BaseFrameDecoder {
 
     private int messageLength(ByteBuf buf) {
-        switch (buf.getUnsignedByte(buf.readerIndex())) {
-            case RoboTrackProtocolDecoder.MSG_ID:
-                return 69;
-            case RoboTrackProtocolDecoder.MSG_ACK:
-                return 3;
-            case RoboTrackProtocolDecoder.MSG_GPS:
-            case RoboTrackProtocolDecoder.MSG_GSM:
-            case RoboTrackProtocolDecoder.MSG_IMAGE_START:
-                return 24;
-            case RoboTrackProtocolDecoder.MSG_IMAGE_DATA:
-                return 8 + buf.getUnsignedShortLE(buf.readerIndex() + 1);
-            case RoboTrackProtocolDecoder.MSG_IMAGE_END:
-                return 6;
-            default:
-                return Integer.MAX_VALUE;
-        }
+        return switch (buf.getUnsignedByte(buf.readerIndex())) {
+            case RoboTrackProtocolDecoder.MSG_ID -> 69;
+            case RoboTrackProtocolDecoder.MSG_ACK -> 3;
+            case RoboTrackProtocolDecoder.MSG_GPS, RoboTrackProtocolDecoder.MSG_GSM,
+                 RoboTrackProtocolDecoder.MSG_IMAGE_START -> 24;
+            case RoboTrackProtocolDecoder.MSG_IMAGE_DATA -> 8 + buf.getUnsignedShortLE(buf.readerIndex() + 1);
+            case RoboTrackProtocolDecoder.MSG_IMAGE_END -> 6;
+            default -> Integer.MAX_VALUE;
+        };
     }
 
     @Override