Handle null from deserialization

satano · satano · commit b06001cd78ec · 2025-10-24T11:19:42.000+02:00
diff --git a/src/MigrationTools/Tools/ExportWorkItemMappingTool.cs b/src/MigrationTools/Tools/ExportWorkItemMappingTool.cs
@@ -110,7 +110,8 @@ private Dictionary<string, string> LoadExistingMappings()
             if (File.Exists(Options.TargetFile))
             {
                 using Stream source = File.OpenRead(Options.TargetFile);
-                return JsonSerializer.Deserialize<Dictionary<string, string>>(source);
+                Dictionary<string, string>? existing = JsonSerializer.Deserialize<Dictionary<string, string>>(source);
+                return existing ?? [];
             }
         }
         catch (Exception ex)

Original file line number	Diff line number	Diff line change
`@@ -110,7 +110,8 @@ private Dictionary<string, string> LoadExistingMappings()`
`110`	`110`	`if (File.Exists(Options.TargetFile))`
`111`	`111`	`{`
`112`	`112`	`using Stream source = File.OpenRead(Options.TargetFile);`
`113`		`- return JsonSerializer.Deserialize<Dictionary<string, string>>(source);`
	`113`	`+ Dictionary<string, string>? existing = JsonSerializer.Deserialize<Dictionary<string, string>>(source);`
	`114`	`+ return existing ?? [];`
`114`	`115`	`}`
`115`	`116`	`}`
`116`	`117`	`catch (Exception ex)`