[Ikvm-developers] JMS in C# - Using Weblogic

[Pandivel R <pan...@db...>]

Hi,

I have written the C# client to connect Weblogic 8.1.5 JMS Topic (I have 
added the jms.dll and weblogic.dll in the C# reference). When I run that I 
am getting this exception

java.net.ConnectException: t3://dblonws0822:7001: Bootstrap to 
dblonws0822/10.129.20.69:7001 failed. It is likely that the remote side 
declared peer gone on this JVM
        at weblogic.rjvm.RJVMFinder.findOrCreate(RJVMFinder.java:200)
        at weblogic.rjvm.ServerURL.findOrCreateRJVM(ServerURL.java:125)
        at 
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:296)
        at 
weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLInitialContextFactoryDelegate.java:239)
        at 
weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialContextFactory.java:135)
        at 
javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:152)
        at 
javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:296)
        at 
javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.java:347)
        at javax.naming.InitialContext.lookup(InitialContext.java:381)
        at cli.JMSsample.Sample.<init>(sample.cs:96)
        at cli.JMSsample.Sample.Main(sample.cs:67)
Exception -> System.NullReferenceException: Object reference not set to an 
instance of an object.
   at JMSsample.Sample.getMonitorDetails() in 
e:\foredev\jmssample\sample.cs:line 127
   at JMSsample.Sample.Main(String[] args) in 
e:\foredev\jmssample\sample.cs:line 68



This is the C# client..

using System;
using ikvm.lang;

using javax.naming;
using java.util;

namespace JMSsample
{
        /// <summary>
        /// Summary description for Class1.
        /// </summary>
        class Sample
        {

                InitialContext ctx = null;
                javax.jms.TopicConnectionFactory factory = null;
                javax.jms.Topic topic = null;
                javax.jms.TopicConnection connection = null;
                javax.jms.TopicSession session = null;
                javax.jms.TopicSubscriber subscriber = null;

                /// <summary>
                /// The main entry point for the application.
                /// </summary>
                [STAThread]
                static void Main(string[] args)
                {
                        //
                        // TODO: Add code to start application here
                        //
                        try
                        {
 
                                Sample s1 = new Sample();
                                System.Console.WriteLine("Details = "+ 
s1.getMonitorDetails());
                                System.Console.ReadLine();
 
                        }
                        catch(Exception e)
                        {
                                Console.WriteLine("Exception -> "+e);
                                System.Console.ReadLine();
                        }

                }

                public Sample()
                {
                        try
                        {
 
                                Hashtable environment = new Hashtable();
 environment.put("java.naming.factory.initial", 
"weblogic.jndi.WLInitialContextFactory");
                                String httpURL = "t3://localhost:7001";
 environment.put("java.naming.provider.url", httpURL);

                                ctx = new InitialContext(environment);
 
                                factory = 
(javax.jms.TopicConnectionFactory) ctx.lookup("foreJmsConnectionFactory");
                                topic = (javax.jms.Topic) 
ctx.lookup("testTopic");

                                connection = 
factory.createTopicConnection();
                                session = 
connection.createTopicSession(false, 1);
                                subscriber = 
session.createSubscriber(topic);
                                connection.start();

                        }
                        catch (NamingException e)
                        {
                                e.printStackTrace();
                        }
                        catch(java.lang.Exception e)
                        {
                                e.printStackTrace();
                        }

                }

                public string getMonitorDetails()
                {

                                string msgText = " NO MESSAGE ";
                                try
                                {
                                        javax.jms.Message message = 
subscriber.receive();

                                        if (message != null)
                                        {
                                                        msgText = ( 
(javax.jms.TextMessage) message).getText();
                                                        return msgText;
                                        }
                                }
                                catch (javax.jms.JMSException e)
                                {
                                        e.printStackTrace();
                                }
                                return msgText;
                }
        }
}



Could you please help me to resolve this exception but it works fine with 
java client?

Thanks &
Regards,

Pandivel MR


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