JMX attributes do not appear on Tomcat

I'm using Spring 1.2.2 with Tomcat 5.0.

I have the following JMX/MBean configuration in my application context file.

<bean id="exporter" class="org.springframework.jmx.export.MBeanExporte r">
<property name="beans">
<map>
<entry key="bean:name=presenceService">
<ref local="presenceService"/>
</entry>
</map>
</property>
<property name="assembler">
<bean class="org.springframework.jmx.export.assembler.Me thodNameBasedMBeanInfoAssembler">
<property name="methodMappings">
<map>
<entry key="bean:name=presenceService"><value>getJabberSe rver,getJabberServerPort,getEnable</value></entry>
</map>
</property>
</bean>
</property>
</bean>

When I deploy my app on JBoss 4.0.2 and point my browser to http://localhost:8080/web-console, I can see three attributes - getJabberServer, getJabberServerPort, getEnable - on the JMX console and the values of the attributes displayed there are correct.

However, when I deploy the same app/configuration on Tomcat 5.0, and point my browser to http://localhost:8080/manager/jmxproxy/?qry=*:*, I can only see the name of my JMX bean but not its attributes. The following two lines are all I got.

Name: bean:name=presenceService
modelerType: com.sitescape.ef.presence.impl.PresenceServiceImpl

All Tomcat JMX components themlselves are displayed correctly with their attribute values included.

Does anyone know why this discrepency? Any help would be appreciated.

To further investigate the problem, I added another bean that actually implements MBean interface (i.e., standard MBeans) and Tomcat displays the attributes of the bean without problem. So it appears that only the dynamic/model MBeans setup is not working. Does anyone know if this is a problem with Tomcat's JMX support?

What about Spring 1.2.6?

I just tried Spring 1.2.6, but still the same.

Can you please raise an issue on JIRA? It would help if you could provide a simple test/example that demonstrates the problem. Thanks.

I encountered the same behaviour when i had to change the
JAVA_HOME for JBoss from 1.5 to 1.42 for production,
i've tried interface mappings,commons-attributes and method-based export
interface = attributes are all null
common-attributes = only the first attribute was shown with null value
method-based = the last method was exposed as an operation the rest as attributes with null value

with jdk 1.5 it worked fine.

changed ManagedAttribute to ManagedOperation
now all metadata are exported under jdk142 with jboss327
when the operation is invoked the attribute value is returned