using System;

using System.Linq;

public class Program

{

    public class Test

    {

        public string stuff;

    }

    public static void Main()

    {

        Console.WriteLine("Hello World");

        DoTest((Test[])null);

    }

    public static void DoTest(Test[] input)

    {

        try

        {

            var result = input.FirstOrDefault()?.stuff.Trim();

            Console.WriteLine("Works!");

        }

        catch (Exception ex)

        {

            Console.WriteLine("Exception");

        }

​

    }

}