From 1580ad6d6e2fd20ba75438163b8c3eb65f62f174 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sat, 12 Jun 2021 11:30:41 -0700
Subject: Fix tests

---
 src/main/java/org/traccar/protocol/UproProtocolDecoder.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/traccar/protocol/UproProtocolDecoder.java b/src/main/java/org/traccar/protocol/UproProtocolDecoder.java
index 05e6fd811..9f236a7e5 100644
--- a/src/main/java/org/traccar/protocol/UproProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/UproProtocolDecoder.java
@@ -307,7 +307,9 @@ public class UproProtocolDecoder extends BaseProtocolDecoder {
                     }
                     break;
                 case 'b':
-                    position.set("serial", data.toString(StandardCharsets.US_ASCII).substring(3));
+                    if (data.readableBytes() > 3) {
+                        position.set("serial", data.toString(StandardCharsets.US_ASCII).substring(3));
+                    }
                     break;
                 default:
                     break;
-- 
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