From 91e6409a0c012106cec454e5953fab2e4b558972 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sat, 9 Oct 2021 16:10:53 -0700
Subject: Handle no location

---
 src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java     | 4 ++++
 src/test/java/org/traccar/protocol/Gt06ProtocolDecoderTest.java | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java
index a9da34e6e..4c71d3724 100644
--- a/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java
@@ -1253,6 +1253,10 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder {
             }
         }
 
+        if (position.getFixTime() == null) {
+            getLastLocation(position, null);
+        }
+
         sendResponse(channel, false, MSG_GPS_MODULAR, buf.readUnsignedShort(), null);
 
         return position;
diff --git a/src/test/java/org/traccar/protocol/Gt06ProtocolDecoderTest.java b/src/test/java/org/traccar/protocol/Gt06ProtocolDecoderTest.java
index fd1eb3040..3caba32e6 100644
--- a/src/test/java/org/traccar/protocol/Gt06ProtocolDecoderTest.java
+++ b/src/test/java/org/traccar/protocol/Gt06ProtocolDecoderTest.java
@@ -17,6 +17,9 @@ public class Gt06ProtocolDecoderTest extends ProtocolTest {
         verifyNull(decoder, binary(
                 "78780D01086471700328358100093F040D0A"));
 
+        verifyNotNull(decoder, binary(
+                "797900377000000001020035000103002c0004616219d00043000b013601048153931500001a0001000808652820400643521000000101004e46760d0a"));
+
         verifyNull(decoder, binary(
                 "7878171915061810051a01f90101700d08c8f50c0000065494ae0d0a"));
 
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