Fix bug when disposing a client with multiple consumers, readers or producers and make ready for release 0.7.2
diff --git a/src/DotPulsar/DotPulsar.csproj b/src/DotPulsar/DotPulsar.csproj
index b9c0614..a1eaa44 100644
--- a/src/DotPulsar/DotPulsar.csproj
+++ b/src/DotPulsar/DotPulsar.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <TargetFrameworks>netstandard2.0;netstandard2.1</TargetFrameworks>
-    <Version>0.7.1</Version>
+    <Version>0.7.2</Version>
     <AssemblyVersion>$(Version)</AssemblyVersion>
     <FileVersion>$(Version)</FileVersion>
     <Authors>DanskeCommodities;dblank</Authors>
@@ -11,7 +11,7 @@
     <Title>DotPulsar</Title>
     <PackageTags>Apache;Pulsar</PackageTags>
     <PackageLicenseExpression>Apache-2.0</PackageLicenseExpression>
-    <PackageReleaseNotes>Beta release - ConfigureAwait(false) all via Fody.ConfigureAwait</PackageReleaseNotes>
+    <PackageReleaseNotes>Beta release - Fixed possible exception when disposing a client with multiple consumers, readers or producers</PackageReleaseNotes>
     <Description>.NET/C# client library for Apache Pulsar</Description>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PublishRepositoryUrl>true</PublishRepositoryUrl>
diff --git a/src/DotPulsar/PulsarClient.cs b/src/DotPulsar/PulsarClient.cs
index b9490de..fb7d2d3 100644
--- a/src/DotPulsar/PulsarClient.cs
+++ b/src/DotPulsar/PulsarClient.cs
@@ -4,6 +4,7 @@
 using DotPulsar.Internal.Abstractions;
 using System;
 using System.Collections.Generic;
+using System.Linq;
 using System.Threading.Tasks;
 
 namespace DotPulsar
@@ -65,15 +66,19 @@
 
         public async ValueTask DisposeAsync()
         {
+            IAsyncDisposable[] disposables;
+
             lock (_lock)
             {
                 if (_isClosed)
                     return;
 
                 _isClosed = true;
+                disposables = _disposabels.ToArray();
             }
 
-            foreach (var disposable in _disposabels)
+            
+            foreach (var disposable in disposables)
             {
                 await disposable.DisposeAsync();
             }