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  1. POjavax.naming.NoInitialContextException - Java
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    copied!<p>Here is my code:</p> <pre><code>import javax.naming.InitialContext; import javax.jms.Queue; import javax.jms.Session; import javax.jms.TextMessage; import javax.jms.QueueSender; import javax.jms.DeliveryMode; import javax.jms.QueueSession; import javax.jms.QueueConnection; import javax.jms.QueueConnectionFactory; public class Sender { public static void main(String[] args) throws Exception { // get the initial context InitialContext ctx = new InitialContext(); // lookup the queue object Queue queue = (Queue) ctx.lookup("queue/queue0"); // lookup the queue connection factory QueueConnectionFactory connFactory = (QueueConnectionFactory) ctx. lookup("queue/connectionFactory"); // create a queue connection QueueConnection queueConn = connFactory.createQueueConnection(); // create a queue session QueueSession queueSession = queueConn.createQueueSession(false,Session.DUPS_OK_ACKNOWLEDGE); // create a queue sender QueueSender queueSender = queueSession.createSender(queue); queueSender.setDeliveryMode(DeliveryMode.NON_PERSISTENT); // create a simple message to say "Hello" TextMessage message = queueSession.createTextMessage("Hello"); // send the message queueSender.send(message); // print what we did System.out.println("sent: " + message.getText()); // close the queue connection queueConn.close(); } } </code></pre> <p>Eclipse is not reporting any errors in the above code -- I'm able to compile successfully. However, when I try running it, I get the following exception:</p> <pre><code>Exception in thread "main" javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial at javax.naming.spi.NamingManager.getInitialContext(Unknown Source) at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source) at javax.naming.InitialContext.getURLOrDefaultInitCtx(Unknown Source) at javax.naming.InitialContext.lookup(Unknown Source) at Sender.main(Sender.java:21) </code></pre> <p>Can anyone please help me fix the bug? I tried fixing it for a few hours but still cannot figure it out. </p>
 

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