Unique jmx object names with Spring JMX annotations

[Narada]

Hi,

I have a single class that is declared as two beans with two different bean ids.

That class has the following jmx annnotation on it.

@ManagedResource("foo:type=bar")

However when I start up Spring I get:

Caused by: javax.management.InstanceAlreadyExistsException: foo:type=bar

How can I get Spring to use the bean id rather than what I supply as a value to the @ManagedResource annotation?

I've already seen the property:
http://static.springframework.org/sp...am es(boolean)

However this is already set to true by default and doesn't work.

Do I need to implement my own ObjectNamingStrategy? If so would someone kindly provide an example?

Much appreciate your help.

Thanks.

[Narada]

I tried using the key naming strategy as below.

    <bean id="exporter" class="org.springframework.jmx.export.annotation.AnnotationMBeanExporter">
        <property name="autodetect" value="true" />
        <property name="ensureUniqueRuntimeObjectNames" value="true" />
        <property name="namingStrategy" ref="my.ObjectNamingStrategy" />
    </bean>

    <bean id="my.ObjectNamingStrategy" class="org.springframework.jmx.export.naming.KeyNamingStrategy">
        <property name="mappings">
            <props>
                <prop key="myBean1">bean:name=myBean1</prop>
                <prop key="myBean2">bean:name=myBean2</prop>
            </props>
        </property>
    </bean>

However I now get the error:

Caused by: javax.management.MalformedObjectNameException: Key properties cannot be empty
	at javax.management.ObjectName.construct(ObjectName.java:467)
	at javax.management.ObjectName.<init>(ObjectName.java:1403)
	at javax.management.ObjectName.getInstance(ObjectName.java:1285)
	at org.springframework.jmx.support.ObjectNameManager.getInstance(ObjectNameManager.java:74)
	at org.springframework.jmx.export.naming.KeyNamingStrategy.getObjectName(KeyNamingStrategy.java:140)
	at org.springframework.jmx.export.MBeanExporter.getObjectName(MBeanExporter.java:751)
	at org.springframework.jmx.export.MBeanExporter.registerBeanInstance(MBeanExporter.java:654)
	at org.springframework.jmx.export.MBeanExporter.registerBeanNameOrInstance(MBeanExporter.java:615)
	... 22 more

[Narada]

I've now resolved this myself. Thanks.

[jackcholt]

How did you resolve it? I'm getting the "Key properties cannot be empty" error.

I have a config that looks like this:

<bean id="mbeanExporter" class="org.springframework.jmx.export.MBeanExporter">
        <property name="beans">
            <map>
                <entry key="scheduleRevision">
                    <ref bean="scheduleRevision"/>
                </entry>
            </map>
        </property>
</bean>

[ray.frid]

How have you resolved this? please show us example. thanks.