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authorAnton Tananaev <anton.tananaev@gmail.com>2020-08-20 08:21:30 -0700
committerAnton Tananaev <anton.tananaev@gmail.com>2020-08-20 08:21:30 -0700
commitb9875d4076a6c88b4da6d6b296f9496f525091fe (patch)
treea747930ee37087663eb75c0499ada9062c60940d /src/main/java/org
parent5a62b28e205186358bf45349d31f53c95b5f8a1e (diff)
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Fix commands response crash
Diffstat (limited to 'src/main/java/org')
-rw-r--r--src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java b/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java
index 0f815ca7b..ec4f97919 100644
--- a/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/MictrackProtocolDecoder.java
@@ -209,8 +209,12 @@ public class MictrackProtocolDecoder extends BaseProtocolDecoder {
}
private Object decodeLowAltitude(
- Channel channel, SocketAddress remoteAddress, String sentence) throws Exception {
- String deviceId = sentence.substring(0, sentence.indexOf("$"));
+ Channel channel, SocketAddress remoteAddress, String sentence) {
+ int separator = sentence.indexOf("$");
+ if (separator < 0) {
+ return null;
+ }
+ String deviceId = sentence.substring(0, separator);
DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, deviceId);
if (deviceSession == null) {