From 49d36d2914e6662311d75f92ddd81372858fd658 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Thu, 21 Dec 2017 00:50:33 +1300
Subject: Handle null phone (fix #3691)

---
 src/org/traccar/database/DeviceManager.java | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/org/traccar')

diff --git a/src/org/traccar/database/DeviceManager.java b/src/org/traccar/database/DeviceManager.java
index 1eb90b7eb..1031c5da9 100644
--- a/src/org/traccar/database/DeviceManager.java
+++ b/src/org/traccar/database/DeviceManager.java
@@ -168,7 +168,10 @@ public class DeviceManager extends BaseObjectManager<Device> implements Identity
         }
         if (device.getPhone() != null && !device.getPhone().isEmpty()
                 && !device.getPhone().equals(cachedDevice.getPhone())) {
-            devicesByPhone.remove(cachedDevice.getPhone());
+            String phone = cachedDevice.getPhone();
+            if (phone != null && !phone.isEmpty()) {
+                devicesByPhone.remove(phone);
+            }
             cachedDevice.setPhone(device.getPhone());
             putPhone(cachedDevice);
         }
-- 
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