MBean service either has no business interface or does not i
I found the following thread, but no response as yet:
http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4180208
We are busy with a jbas4.2.2 -> 5.1.0.GA migration, and have an mbean:
MyMBeanService.java:
@Service(objectName = "mycompany:service=MyMBeanService")
@Management(MyMBeanServiceMBean.class)
public class MyMBeanService extends ServiceMBeanSupport implements MyMBeanServiceMBean {}
MyMBeanServiceMBean.java:
public interface MyMBeanServiceMBean {}
It is being mapped as an mbean, via jboss-service.xml:
<mbean code="com.mycompany.mypackage.management.MyMBeanService" name="mycompany:service=MyMBeanService"> </mbean>
When I deploy this to JBAS 5, I get the following error:
ERROR [org.jboss.management.j2ee.MBean] (main) Could not destroy JSR-77 MBean: mycompany:service=MyMBeanService javax.management.MBeanRegistrationException: preDeregister at org.jboss.mx.server.registry.BasicMBeanRegistry.unregisterMBean .... Caused by: javax.management.RunimeOperationsException at org.jboss.mx.server.MBeanServerImpl.removeNotficationLister ... Caused by: java.lang.IllegalArgumentException: The MBean mycompany:service=MyMBeanService exists but does not implement the NotifcationBroadcaster interface.
So I added the implementation:
public class MyMBeanService extends ServiceMBeanSupport implements MyMBeanServiceMBean, NotificationBroadcaster {}
which results in the following error
ERROR [org.jboss.kernel.plugins.dependency.AbstractKernelController] (HDScanner) Error installing to Real: name=vfszip:/usr/share/jbo ss/jboss-5.1.0.GA/server/all/farm/7-Project-ear.ear/ state=PreReal mode=Manual requiredState=Real org.jboss.deployers.spi.DeploymentException: Error deploying Project.sar: Error creating ejb container MyMBeanService: Bean Class com.mycompany.project .management.MyMBeanService has no local, webservice, or remote interfaces defined and does not implement at least one business interface: MyMBeanService at org.jboss.ejb3.deployers.Ejb3Deployer.deploy(Ejb3Deployer.java:196) at org.jboss.ejb3.deployers.Ejb3Deployer.deploy(Ejb3Deployer.java:99)
I found a reference to the EJB 3 spec on JBoss Jira:
"if a bean class implements a single interface, that interface will be assumed to be the business interface of the bean."
And if a bean class implements more than 1 interface, then the business interface is specified through @Local or @Remote.
So I added the annotation to MyMBeanServiceMBean:
@Local
public interface MyMBeanServiceMBean {}
After deploying this, I get the same error about the mbean existing, but not implementing NotificationBroadcaster interface (even though the bean does implement NotificationBroadcaster).
I have also tried extending NotificationBroadcaster in the ServiceMBean:
public interface MyMBeanServiceMBean extends NotificationBroadcaster {}
which also still results in the not implementing notificationbroadcaster error.
Not sure how to resolve this for this implementation (or perhaps a bug?)