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From "David Holroyd (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AMQNET-64) occasional exception in ActiveMQ.Dispatcher.Dequeue() : millisecondsTimeout must be either non-negative and less than or equal to Int32.MaxValue or -1.
Date Mon, 24 Sep 2007 20:56:22 GMT

    [ https://issues.apache.org/activemq/browse/AMQNET-64?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_40175
] 

David Holroyd commented on AMQNET-64:
-------------------------------------

Jim!  Bless you!  I was hunting for the bug caused by that semicolon for over an hour on Sunday.

So, I've tried running with the attached patch, and my testing shows this codepath now seems
to be working (it has both the fixes you suggested).

> occasional exception in ActiveMQ.Dispatcher.Dequeue() : millisecondsTimeout must be either
non-negative and less than or equal to Int32.MaxValue or -1.
> -------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMQNET-64
>                 URL: https://issues.apache.org/activemq/browse/AMQNET-64
>             Project: ActiveMQ .Net
>          Issue Type: Bug
>          Components: ActiveMQ Client
>         Environment: .NET 2.0, Windows 2000 Server under VMware, https://svn.apache.org/repos/asf/activemq/activemq-dotnet/trunk
@ 578465
>            Reporter: David Holroyd
>            Assignee: James Strachan
>
> I tried a lightly modified version of the example code from http://activemq.apache.org/nms/nms.html
and find that every few invocations of the test program, I see the following exception, rather
than the normal 'Received message' output:
> {noformat}
> Unhandled Exception: System.ArgumentOutOfRangeException: Number must be either non-negative
and less than or equal to Int32.MaxValue or -1.
> Parameter name: millisecondsTimeout
>    at System.Threading.WaitHandle.WaitOne(Int32 millisecondsTimeout, Boolean exitContext)
>    at ActiveMQ.Dispatcher.Dequeue(TimeSpan timeout)
>    at ActiveMQ.Dispatcher.Dequeue()
>    at ActiveMQ.MessageConsumer.Receive()
>    at Test.Bridge.Main(String[] args)
> {noformat}
> The code in question is,
> {code:title=Bridge.cs}
> namespace Test {
> 	using System;
> 	using NMS;
> 	using ActiveMQ;
> 	public class Bridge {
> 		public static void Main(string[] args) {
> 			IConnectionFactory factory = new ConnectionFactory(new Uri("tcp://192.168.9.162:61616"));
> 			using (IConnection connection = factory.CreateConnection())
> 			{
> 			    Console.WriteLine("Created a connection!");
> 			    
> 			    ISession session = connection.CreateSession();
> 			    
> 			    IDestination destination = session.GetQueue("FOO.BAR");
> 			    Console.WriteLine("Using destination: " + destination);
> 			    
> 			    // lets create a consumer and producer
> 			    IMessageConsumer consumer = session.CreateConsumer(destination);
> 			    
> 			    IMessageProducer producer = session.CreateProducer(destination);
> 			    producer.Persistent = true;
> 			    
> 			    // lets send a message
> 			    ITextMessage request = session.CreateTextMessage("Hello World!");
> 			    request.NMSCorrelationID = "abc";
> 			    request.Properties["NMSXGroupID"] = "cheese";
> 			    request.Properties["myHeader"] = "James";
> 			    
> 			    producer.Send(request);
> 			    
> 			    // lets consume a message
> 			    ITextMessage message = (ITextMessage) consumer.Receive();
> 			    if (message == null)
> 			    {
> 				Console.WriteLine("No message received!");
> 			    }
> 			    else
> 			    {
> 				Console.WriteLine("Received message with ID:   " + message.NMSMessageId);
> 				Console.WriteLine("Received message with text: " + message.Text);
> 			    }
> 			}
> 		}
> 	}
> }
> {code}
> The C# code is talking to ActiveMQ 4.1.1 running on the Linux host (I'm using NMS within
VMware).
> I'll try to nose around the code and work out what's happening, but this is the first
time I've ever worked with C#.

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