[Mono-list] Bug in Mint : For Multi-Threaded Code

[Madhuri Kottamasu]

I am trying to interpret simple multi-threaded code. 
Here is the code:

using System;
using System.Threading;

namespace MultiThreadedApp
{
	/// <summary>
	/// Summary description for Class1.
	/// </summary>
	class Class1
	{
		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main(string[] args)
		{
			Class1 c = new Class1();
			Thread t = null;
			Console.WriteLine("Multi-threaded APP");
			for (int i=0; i < 5; i++)
			{
				if (i % 2 == 0)
				{
					t = new Thread(new ThreadStart(c.ThreadMethod1));
				}
				else
					t = new Thread(new ThreadStart(c.ThreadMethod2));
				t.Start();
				
			}
		}

		private void ThreadMethod1()
		{
			Console.WriteLine("This is a thread method1");
		}

		private void ThreadMethod2()
		{
			Console.WriteLine("This is a thread method2");
		}
	}
}

When I have Console.WriteLine called in the main
method before thread has called (mscorlib is
pre-loaded), mint works well.

But if I comment out the line
Console.WriteLine("Multi-threaded APP");

And run mint again, I get the following error:
$ mint test.exe

(process:300): ** WARNING **: Failed to load library
libmonowrapper.dll (monowra
pper)Unhandled exception System.NullReferenceException
A null value was found where an object instance was
required.
Unhandled exception System.NullReferenceException A
null value was found where an object instance was
required.
Unhandled exception System.NullReferenceException A
null value was found where an object instance was
required.
Unhandled exception System.NullReferenceException A
null value was found where an object instance was
required.
#0: 0x00006 callvirt   in System.Console::WriteLine
(#0: 0x00006 callvirt   in System.Console::WriteLine
(#0: 0x00006 callvirt   in System.Console::WriteLine
(#
0: 0x00006 callvirt   in System.Console::WriteLine
([00DF7A88] [00DF0A90] [00DF7
A88] [00DF0A90] )
)
)
)
#1: 0x00005 call       in
MultiThreadedApp.Class1::ThreadMethod2 (#1: 0x00005 ca
ll       in MultiThreadedApp.Class1::ThreadMethod1
(#1: 0x00005 call       in
MultiThreadedApp.Class1::ThreadMethod2 (#1: 0x00005
call       in MultiThreadedApp
.Class1::ThreadMethod1 ()
)
)

Is this a known error ? Is there a fix available ?

Thanks,
Madhuri

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