JMS Message getPropertyNames( ) method returns empty enumeration

[Jan Smolenski]

I'm using Geronimo 1.0 (WAS-CE with  ActiveMQ 3.2.1).
The getPropertyNames( ) method of the javax.jms.Message returns enumeration without any elements (i.e. hasMoreElements() is 'false'). The line of java code is shown below:

javax.jms.Message message = ....
Enumeration msgProps = message.getPropertyNames();
                while (msgProps.hasMoreElements()) {
                    .....
                           
                }


Has anybody seen this behavior?

Jan