Key properties cannot be empty

[warenasr]

Hi,

I'm having the following exception:

Exception in thread "main" org.springframework.beans.factory.BeanCreationExce ption: Error creating bean with name 'exporter' defined in class path resource [tcaserver.xml]: Invocation of init method failed; nested exception is org.springframework.jmx.export.UnableToRegisterMBe anException: Unable to register MBean [javax.management.remote.rmi.RMIConnectorServer@74b 10b] with key 'rmiConnector'; nested exception is javax.management.MalformedObjectNameException: Key properties cannot be empty
Caused by: org.springframework.jmx.export.UnableToRegisterMBe anException: Unable to register MBean [javax.management.remote.rmi.RMIConnectorServer@74b 10b] with key 'rmiConnector'; nested exception is javax.management.MalformedObjectNameException: Key properties cannot be empty
Caused by: javax.management.MalformedObjectNameException: Key properties cannot be empty
at javax.management.ObjectName.construct(ObjectName.j ava:393)
at javax.management.ObjectName.<init>(ObjectName.java :1304)
at javax.management.ObjectName.getInstance(ObjectName .java:1187)
at org.springframework.jmx.support.ObjectNameManager. getInstance(ObjectNameManager.java:74)
at org.springframework.jmx.export.naming.KeyNamingStr ategy.getObjectName(KeyNamingStrategy.java:140)
at org.springframework.jmx.export.MBeanExporter.getOb jectName(MBeanExporter.java:675)
at org.springframework.jmx.export.MBeanExporter.regis terBeanInstance(MBeanExporter.java:588)
at org.springframework.jmx.export.MBeanExporter.regis terBeanNameOrInstance(MBeanExporter.java:570)
at org.springframework.jmx.export.MBeanExporter.regis terBeans(MBeanExporter.java:499)
at org.springframework.jmx.export.MBeanExporter.after PropertiesSet(MBeanExporter.java:388)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.invokeInitMethods(Abstr actAutowireCapableBeanFactory.java:1143)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.initializeBean(Abstract AutowireCapableBeanFactory.java:1110)
at org.springframework.beans.factory.support.Abstract AutowireCapableBeanFactory.createBean(AbstractAuto wireCapableBeanFactory.java:431)
at org.springframework.beans.factory.support.Abstract BeanFactory$1.getObject(AbstractBeanFactory.java:2 54)
at org.springframework.beans.factory.support.DefaultS ingletonBeanRegistry.getSingleton(DefaultSingleton BeanRegistry.java:144)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean(AbstractBeanFactory.java:251)
at org.springframework.beans.factory.support.Abstract BeanFactory.getBean(AbstractBeanFactory.java:163)
at org.springframework.beans.factory.support.DefaultL istableBeanFactory.preInstantiateSingletons(Defaul tListableBeanFactory.java:284)
at org.springframework.context.support.AbstractApplic ationContext.refresh(AbstractApplicationContext.ja va:352)
at org.springframework.context.support.ClassPathXmlAp plicationContext.<init>(ClassPathXmlApplicationCon text.java:91)
at org.springframework.context.support.ClassPathXmlAp plicationContext.<init>(ClassPathXmlApplicationCon text.java:75)
at org.springframework.context.support.ClassPathXmlAp plicationContext.<init>(ClassPathXmlApplicationCon text.java:65)
at com.tca.tcaagente.ServerAgent.main(ServerAgent.jav a:110)

I've set the application context (tcaserver.xml) accordingly to documentation:
<bean id="rmiConnector"
class="org.springframework.jmx.support.ConnectorSe rverFactoryBean" depends-on="registry" >
<property name="objectName" value="TCAAgent:name=rmiconnector,port=1099"/>
<property name="serviceUrl" value="service:jmx:rmi://localhost/jndi/rmi://localhost:1099/tcaagent"/>
<property name="environment">
<props>
<prop key="jmx.remote.jndi.rebind">true</prop>
</props>
</property>
</bean>

I'm not using any container except for Spring. The funny thing here is that if I set the values through code, it works fine.

Does anybody know what I am doing incorrectly?

Please advise

[Dave Syer]

Can you show the config for the MBeanExporter? It is there that the error is coming from I think. Please use [code][/code] to post the code - it makes it easier to read.

[warenasr]

Below is how I configured it. As a comment I found that if autodetect property is set - commented out in code below- then the exception is thrown. It would be great to know the reason of these.

    <bean id="exporter" class="org.springframework.jmx.export.MBeanExporter">
       <!-- property name="autodetect" value="true"/ -->
       <property name="beans">
       		<map>
       		 	<entry key="TCAAgent:name=server,port=4000" 
       		 		value-ref="serverRol"/>
       		 	<entry key="TCAAgent:name=httpadaptor,port=8080"
       		 		value-ref="httpAddapter"/>
       		</map>
       </property>
       <property name="notificationListenerMappings">
       		<map>
       			<entry key="JMImplementation:type=MBeanServerDelegate" value-ref="serverRol"/>
       		</map>
       </property>
       <property name="server" ref="jmxServer"/>
    </bean>

Kind Regards

WAR