Failed to create session: java.security.AccessControlException

Hi,

I have developped a small applet which subscribes to a topic. My openjms server 
is properly running because I am able via a standard java application to 
publish/subscribe to "topic1", receive message using the http configuration 
file...

However from my applet it raises an AccessControlException. Does someone have 
any idea ?

applet source code :
import java.applet.Applet;
import javax.jms.*;
import javax.naming.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;

public class TestJmsApplet extends Applet {
	private TextField subject;
	private TextField data;
	private FlowLayout layout;
	private Button button;
	private InitialContext context;
	private TopicConnectionFactory factory;
	private TopicConnection connection;
	private TopicSession session;
	private Topic topic;
	private TopicSubscriber subscriber;
	private TextMessage message;
	
	/**
	 *
	 **/	
	public void init() {
		
		Hashtable properties = new Hashtable();
		
		try {
			super.init();
		
			properties.put(Context.PROVIDER_URL,"http://127.0.0.1:
8080/openjms/OpenJMSJndi");
			properties.put(Context.INITIAL_CONTEXT_FACTORY,
        						"org.exolab.jms.jndi.http.
HttpJndiInitialContextFactory");
       		properties.put(Context.PROVIDER_URL, "http://127.0.0.1:
8080/openjms/OpenJMSJndi");
       		context = new InitialContext(properties);
       	}
       	catch (Exception e) {
       		e.printStackTrace();
       	}
		
		this.setLayout(new FlowLayout());
		
		subject = new TextField("Enter your subject", 19);
		subject.setVisible(true);
		this.add(subject);
		
		data = new TextField("Data received", 19);
		data.setVisible(true);
		this.add(data);
		
		button = new Button("Subscribe");
		button.setVisible(true);
		button.addMouseListener(new MouseListener() {
			public void mousePressed(MouseEvent e) {
				subscribe();
				start();
				return;		
			}
			
			public void mouseClicked(MouseEvent e) {
			
				return;
			}
			
			public void mouseEntered(MouseEvent e) {
				return;
			}
			
			public void mouseExited(MouseEvent e) {
				return;
			}
			
			public void mouseReleased(MouseEvent e) {
				return;
			}
		});
		
		this.add(button);
		
		this.setVisible(true);
		this.validate();
	}
	
	/**
	 *
	 **/
	public void start() {
		return;	
	}
	
	/**
	 *
	 **/	
	public void paint(Graphics g) {
		return;		
	}
	
	/**
	 *
	 **/	
	public void subscribe() {
		Thread thread;
		String sub = subject.getText();
		subject.setText("Subscribe to " + sub);
		
		try {
			factory 	= (TopicConnectionFactory)context.
lookup("HTTPTopicConnectionFactory");
			connection 	= factory.createTopicConnection();
			connection.start();
			session 	= connection.createTopicSession(false, Session.
AUTO_ACKNOWLEDGE);		
			topic 		= (Topic)context.lookup(sub);	
			subscriber 	= session.createSubscriber(topic);
			thread = new Thread() {
				public void run() {
					try {
						while (true) {
							message = (TextMessage)subscriber.receive();
							data.setText(message.getText());
						}
					}
					catch (Exception e) {
						e.printStackTrace();
					}		
				}
			};
			thread.start();
		}
		catch (Exception e) {
			e.printStackTrace();
		}
		
		
		return;
	}
}

********
Stack trace :
javax.jms.JMSException: Failed to create session: java.security.
AccessControlException: access denied (java.util.PropertyPermission org.exolab.
jms.jndi.http.client.address read)

	at org.exolab.jms.client.http.HttpJmsConnectionStub.
createSession(HttpJmsConnectionStub.java:139)

	at org.exolab.jms.client.JmsSession.<init>(JmsSession.java:225)

	at org.exolab.jms.client.JmsTopicSession.<init>(JmsTopicSession.java:89)

	at org.exolab.jms.client.JmsTopicConnection.
createTopicSession(JmsTopicConnection.java:105)

	at TestJmsApplet.subscribe(TestJmsApplet.java:110)

	at TestJmsApplet$1.mousePressed(TestJmsApplet.java:55)

	at java.awt.Component.processMouseEvent(Component.java:5097)

	at java.awt.Component.processEvent(Component.java:4897)

	at java.awt.Button.processEvent(Button.java:353)

	at java.awt.Component.dispatchEventImpl(Component.java:3615)

	at java.awt.Component.dispatchEvent(Component.java:3477)

	at java.awt.EventQueue.dispatchEvent(EventQueue.java:456)

	at java.awt.EventDispatchThread.
pumpOneEventForHierarchy(EventDispatchThread.java:201)

	at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.
java:151)

	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:145)

	at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:137)

	at java.awt.EventDispatchThread.run(EventDispatchThread.java:100)


Thanks a lot for any help.

Regards

Arnaud ROCHE




-------------------------------------------------------
This SF.Net email is sponsored by: IBM Linux Tutorials
Free Linux tutorial presented by Daniel Robbins, President and CEO of
GenToo technologies. Learn everything from fundamentals to system
administration.http://ads.osdn.com/?ad_id70&alloc_id638&op=click