From 8e38c6158e1e27db8c846963508dae8dad9c6224 Mon Sep 17 00:00:00 2001
From: Nicolo Sponziello <nisp@bang-olufsen.dk>
Date: Tue, 20 Feb 2024 15:26:13 +0100
Subject: [PATCH] fix potential npe if service discovery fails

---
 Source/Plugin.BLE.Android/Device.cs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Source/Plugin.BLE.Android/Device.cs b/Source/Plugin.BLE.Android/Device.cs
index aa05a697..bdcfd11b 100644
--- a/Source/Plugin.BLE.Android/Device.cs
+++ b/Source/Plugin.BLE.Android/Device.cs
@@ -68,7 +68,14 @@ protected override async Task<IEnumerable<IService>> GetServicesNativeAsync()
                 execute: () => GattServer.DiscoverServices(),
                 getCompleteHandler: (complete, reject) => ((sender, args) =>
                 {
-                    complete(GattServer.Services.Select(service => new Service(service, GattServer, _gattCallback, this)));
+                    if (GattServer.Services is null)
+                    {
+                        complete(new List<IService>());
+                    }
+                    else
+                    {
+                        complete(GattServer.Services.Select(service => new Service(service, GattServer, _gattCallback, this))); // this thows NPE
+                    }
                 }),
                 subscribeComplete: handler => _gattCallback.ServicesDiscovered += handler,
                 unsubscribeComplete: handler => _gattCallback.ServicesDiscovered -= handler,