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-rw-r--r--src/main/java/org/traccar/protocol/WatchProtocolDecoder.java24
1 files changed, 13 insertions, 11 deletions
diff --git a/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java b/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java
index 4ab7875b7..b25a15f93 100644
--- a/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/WatchProtocolDecoder.java
@@ -145,17 +145,19 @@ public class WatchProtocolDecoder extends BaseProtocolDecoder {
int cellCount = Integer.parseInt(values[index++]);
index += 1; // timing advance
- int mcc = !values[index].isEmpty() ? Integer.parseInt(values[index++]) : 0;
- int mnc = !values[index].isEmpty() ? Integer.parseInt(values[index++]) : 0;
-
- for (int i = 0; i < cellCount; i++) {
- int lac = Integer.parseInt(values[index++]);
- int cid = Integer.parseInt(values[index++]);
- String rssi = values[index++];
- if (!rssi.isEmpty()) {
- network.addCellTower(CellTower.from(mcc, mnc, lac, cid, Integer.parseInt(rssi)));
- } else {
- network.addCellTower(CellTower.from(mcc, mnc, lac, cid));
+ if (cellCount > 0) {
+ int mcc = !values[index].isEmpty() ? Integer.parseInt(values[index++]) : 0;
+ int mnc = !values[index].isEmpty() ? Integer.parseInt(values[index++]) : 0;
+
+ for (int i = 0; i < cellCount; i++) {
+ int lac = Integer.parseInt(values[index++]);
+ int cid = Integer.parseInt(values[index++]);
+ String rssi = values[index++];
+ if (!rssi.isEmpty()) {
+ network.addCellTower(CellTower.from(mcc, mnc, lac, cid, Integer.parseInt(rssi)));
+ } else {
+ network.addCellTower(CellTower.from(mcc, mnc, lac, cid));
+ }
}
}