[Mono-bugs] [Bug 455894] New: UdpClient.Close triggers an NRE from a blocked UdpClient. Receive call

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=455894


           Summary: UdpClient.Close triggers an NRE from a blocked
                    UdpClient.Receive call
           Product: Mono: Class Libraries
           Version: 2.0.x
          Platform: x86-64
        OS/Version: Linux
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: System
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: cdhowie at gmail.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---


If UdpClient.Close() is called from one thread while UdpClient.Receive() is
blocking from another, the latter call will throw a NullReferenceException. 
MS.NET throws a SocketException, and MSDN seems to indicate that this should be
the case.

I have attached a sample that may be used to test this problem.  If required I
can write a proper NUnit test around it.


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