Exposing spring JMX MBeans in Weblogic 9.2

[mirageman]

I'm using spring 2.0.8 with weblogic 9.2 and java 1.5 and I have a class with attributes I wish to expose annotated with the 1.5 JMX annotations, implementing an interface containing the methods I wish to expose. Here's the relevent section of my application context config:

	<!-- JMX Config -->
    <bean id="namingStrategy"
          class="org.springframework.jmx.export.naming.MetadataNamingStrategy">
        <property name="attributeSource" ref="jmxAttributeSource"/>
    </bean>
    
    <bean id="jmxAttributeSource"
          class="org.springframework.jmx.export.annotation.AnnotationJmxAttributeSource"/>  
  
    <bean id="assembler"
          class="org.springframework.jmx.export.assembler.MetadataMBeanInfoAssembler">
        <property name="attributeSource" ref="jmxAttributeSource"/>
    </bean>
    
   <bean id="exporter" class="org.springframework.jmx.export.MBeanExporter" lazy-init="false">
      <property name="beans">
      <map>
        <entry key="bean:name=paymentProcessor" value-ref="paymentProcessor"/>
      </map>
    </property> 
    <property name="registrationBehaviorName" value="REGISTRATION_REPLACE_EXISTING"/>
    <property name="assembler" ref="assembler"/>
    <property name="namingStrategy" ref="namingStrategy"/>   
    <property name="autodetect" value="true"/>
    <property name="server" ref="runtimeMbeanServerConnection"/>
   </bean>    

<bean id="server" class="org.springframework.jndi.JndiObjectFactoryBean">
	  	<property name="jndiName" value="java:comp/env/jmx/runtime" />
	</bean>
</bean>

When I deploy my application as an .ear file to weblogic, I can't find the paymentProcessor mbean that I've defined - by using the weblogic wlconfig ant task as follow:

<wlconfig url="t3://hostname:port" username="system" password="weblogic" >
        <get mbean="bean:name=PaymentProcessor"  attribute="myAttribute" property="att" /> 	
      </wlconfig>
      <echo  message="PauseInterval : ${att}" />

This returns me the message: Could not find provider: bean:name=PaymentProcessor

Does any of this look wrong? Is there anything else I should be configuring to get this working? Many thanks!