If it's just your JNDI classes that prereq Java 5 and not the JBoss classes then you can do this. But you would have to set all of the properties of the objects and that is provider-specific. The WebSphere MQ JMS samples show how to do this with WMQ and you would need to know the property and value names for JBoss to make the equivalent code. Here is a code snippet from the WMQ JmsProducer.java sample:
JmsFactoryFactory ff = JmsFactoryFactory.getInstance(WMQConstants.WMQ_PROVIDER);
JmsConnectionFactory cf = ff.createConnectionFactory();
// Set the properties
cf.setStringProperty(WMQConstants.WMQ_HOST_NAME, host);
cf.setIntProperty(WMQConstants.WMQ_PORT, port);
cf.setStringProperty(WMQConstants.WMQ_CHANNEL, channel);
cf.setIntProperty(WMQConstants.WMQ_CONNECTION_MODE, WMQConstants.WMQ_CM_CLIENT);
cf.setStringProperty(WMQConstants.WMQ_QUEUE_MANAGER, queueManagerName);
// Create JMS objects
connection = cf.createConnection();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
if (isTopic) {
destination = session.createTopic(destinationName);
}
else {
destination = session.createQueue(destinationName);
}
producer = session.createProducer(destination);
On the other hand, if your JBoss classes prereq Java 1.5 then you need to run Java 1.5 or better.