Handle null reference exception when TicketCacheBase.Refresh is null

TimHess · TimHess · commit 28d4b93c7683 · 2024-07-03T16:18:34.000-05:00
diff --git a/Kerberos.NET/Cache/TicketCacheBase.cs b/Kerberos.NET/Cache/TicketCacheBase.cs
@@ -158,7 +158,10 @@ protected virtual async Task BackgroundCacheOperation()
 
                 if (cacheEntry != null && !cacheEntry.IsExpired(this.Configuration.Defaults.ClockSkew))
                 {
-                    await (this.Refresh?.Invoke(cacheEntry)).ConfigureAwait(false);
+                    if (this.Refresh != null)
+                    {
+                        await this.Refresh.Invoke(cacheEntry).ConfigureAwait(false);
+                    }
                 }
             }
 

Original file line number	Diff line number	Diff line change
`@@ -158,7 +158,10 @@ protected virtual async Task BackgroundCacheOperation()`
`158`	`158`
`159`	`159`	`if (cacheEntry != null && !cacheEntry.IsExpired(this.Configuration.Defaults.ClockSkew))`
`160`	`160`	`{`
`161`		`- await (this.Refresh?.Invoke(cacheEntry)).ConfigureAwait(false);`
	`161`	`+ if (this.Refresh != null)`
	`162`	`+ {`
	`163`	`+ await this.Refresh.Invoke(cacheEntry).ConfigureAwait(false);`
	`164`	`+ }`
`162`	`165`	`}`
`163`	`166`	`}`
`164`	`167`