Type.GetMethod - System.Reflection.AmbiguousMatchException

간단하게, 다음과 같은 예제에서는 GetMethod 실행 시 AmbiguousMatchException 예외가 발생합니다.

class Program
{
    static void Main(string[] args)
    {
        MethodInfo methodInfo = typeof(Program).GetMethod("Test", BindingFlags.Instance | BindingFlags.NonPublic);
    }

    void Test()
    {
    }

    void Test(int a)
    {
    }
}

// 실행 결과:
System.Reflection.AmbiguousMatchException was unhandled
  Message=Ambiguous match found.
  Source=mscorlib
  StackTrace:
       at System.RuntimeType.GetMethodImpl(String name, BindingFlags bindingAttr, Binder binder, CallingConventions callConv, Type[] types, ParameterModifier[] modifiers)
       at System.Type.GetMethod(String name, BindingFlags bindingAttr)
       at ConsoleApplication1.Program.Main(String[] args) in D:\...\Program.cs:line 14
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: 

MethodInfo [] methodInfos = typeof(Program).GetMethods(BindingFlags.Instance | BindingFlags.NonPublic);
List<MethodInfo> list = new List<MethodInfo>();
foreach (var item in methodInfos)
{
    if (item.Name == "Test")
    {
        list.Add(item);
    }
}

MemberInfo[] memberInfos = typeof(Program).GetMember("Test", BindingFlags.Instance | BindingFlags.NonPublic);
foreach (var item in memberInfos)
{
    MethodInfo methodInfo = item as MethodInfo;
    Console.WriteLine(methodInfo.Name);
}