* Remove Closed event handler on dispose.

Author: lukebakken

RabbitMQ.AMQP.Client/Impl/AmqpConnection.cs

@@ -25,6 +25,7 @@ public class AmqpConnection : AbstractLifeCycle, IConnection
 
     // The native AMQP.Net Lite connection
     private Connection? _nativeConnection;
+    private ClosedCallback? _closedCallback;
 
     private readonly AmqpManagement _management;
     private readonly RecordingTopologyListener _recordingTopologyListener = new();
@@ -149,6 +150,10 @@ protected override void Dispose(bool disposing)
         if (disposing)
         {
             // TODO probably more should/could happen in this method
+            if (_nativeConnection is not null)
+            {
+                _nativeConnection.Closed -= _closedCallback;
+            }
             _semaphoreOpen.Dispose();
             _semaphoreClose.Dispose();
         }
@@ -271,8 +276,8 @@ void OnOpened(Amqp.IConnection connection, Open open1)
             await _management.OpenAsync()
                 .ConfigureAwait(false);
 
-            ClosedCallback closedCallback = BuildClosedCallback();
-            _nativeConnection.AddClosedCallback(closedCallback);
+            _closedCallback = BuildClosedCallback();
+            _nativeConnection.AddClosedCallback(_closedCallback);
         }
         catch (AmqpException e)
         {