Set default JSON type resolver if not set

Author: captainsafia

src/Http/Http.Extensions/src/Microsoft.AspNetCore.Http.Extensions.csproj

@@ -23,6 +23,7 @@
     <Compile Include="$(SharedSourceRoot)ProblemDetails\ProblemDetailsDefaults.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)ValueStringBuilder\**\*.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)Json\JsonSerializerExtensions.cs" LinkBase="Shared" />
+    <Compile Include="$(SharedSourceRoot)Json\EmptyJsonTypeInfoResolver.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)RouteHandlers\ExecuteHandlerHelper.cs" LinkBase="Shared" />
     <Compile Include="$(RepoRoot)src\Components\Endpoints\src\FormMapping\**\*.cs" LinkBase="SharedFormMapping" />
     <EmbeddedResource Include="$(RepoRoot)src\Components\Endpoints\src\FormMapping\**\*.resx" LinkBase="SharedFormMapping">

src/Http/Http.Results/src/Microsoft.AspNetCore.Http.Results.csproj

@@ -19,6 +19,7 @@
     <Compile Include="$(SharedSourceRoot)ProblemDetails\ProblemDetailsDefaults.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)ApiExplorerTypes\*.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)Json\JsonSerializerExtensions.cs" LinkBase="Shared"/>
+    <Compile Include="$(SharedSourceRoot)Json\EmptyJsonTypeInfoResolver.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)RouteValueDictionaryTrimmerWarning.cs" LinkBase="Shared" />
   </ItemGroup>
 

src/Http/Routing/src/Microsoft.AspNetCore.Routing.csproj

@@ -30,6 +30,7 @@
     <Compile Include="$(SharedSourceRoot)MediaType\ReadOnlyMediaTypeHeaderValue.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)ApiExplorerTypes\*.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)Json\JsonSerializerExtensions.cs" LinkBase="Shared"/>
+    <Compile Include="$(SharedSourceRoot)Json\EmptyJsonTypeInfoResolver.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)RouteHandlers\ExecuteHandlerHelper.cs" LinkBase="Shared"/>
     <Compile Include="$(SharedSourceRoot)RouteValueDictionaryTrimmerWarning.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)HttpRuleParser.cs" LinkBase="Shared" />

src/Mvc/Mvc.Core/src/Formatters/SystemTextJsonOutputFormatter.cs

@@ -23,6 +23,7 @@ public SystemTextJsonOutputFormatter(JsonSerializerOptions jsonSerializerOptions
     {
         SerializerOptions = jsonSerializerOptions;
 
+        jsonSerializerOptions.TypeInfoResolver ??= new EmptyJsonTypeInfoResolver();
         jsonSerializerOptions.MakeReadOnly();
 
         SupportedEncodings.Add(Encoding.UTF8);

src/Mvc/Mvc.Core/src/Microsoft.AspNetCore.Mvc.Core.csproj

@@ -34,6 +34,7 @@ Microsoft.AspNetCore.Mvc.RouteAttribute</Description>
     <Compile Include="$(SharedSourceRoot)HttpParseResult.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)HttpRuleParser.cs" LinkBase="Shared" />
     <Compile Include="$(SharedSourceRoot)Json\JsonSerializerExtensions.cs" LinkBase="Shared" />
+    <Compile Include="$(SharedSourceRoot)Json\EmptyJsonTypeInfoResolver.cs" LinkBase="Shared" />
   </ItemGroup>
 
   <ItemGroup>

src/Shared/Json/EmptyJsonTypeInfoResolver.cs

@@ -0,0 +1,11 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System.Text.Json;
+using System.Text.Json.Serialization.Metadata;
+
+internal sealed class EmptyJsonTypeInfoResolver : IJsonTypeInfoResolver
+{
+    /// <inheritdoc />
+    public JsonTypeInfo? GetTypeInfo(Type type, JsonSerializerOptions options) => null;
+}

src/Shared/Json/JsonSerializerExtensions.cs

@@ -18,6 +18,7 @@ public static bool ShouldUseWith(this JsonTypeInfo jsonTypeInfo, [NotNullWhen(fa
 
     public static JsonTypeInfo GetReadOnlyTypeInfo(this JsonSerializerOptions options, Type type)
     {
+        options.TypeInfoResolver ??= new EmptyJsonTypeInfoResolver();
         options.MakeReadOnly();
         return options.GetTypeInfo(type);
     }