json-empty-lists

JsonEmptyLists.csproj

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>net6.0</TargetFramework>
    <Nullable>enable</Nullable>
    <ImplicitUsings>enable</ImplicitUsings>
    <OutputType>Exe</OutputType>
    <NoWarn>1591</NoWarn>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="ServiceStack.Common" Version="6.*" />
  </ItemGroup>

</Project>

Program.cs

using ServiceStack;
using ServiceStack.Text;

Console.WriteLine(new Test().ToJson()); //Prints {"List":[]}

public class Test
{
    public List<string> List { get; set; } = new();
}