Hi All I'm struggling to deploy singleton jboss service. Can you provide some feedback what it is wrong with following config file? The problem is that I'm not able to set TargetName attribute of HASingletonController. Note: I'm using jboss-eap-5.0--> Supported Alpha Version 11:48:55,438 ERROR [AbstractKernelController] Error installing to Configured: name=xyz:service=TestServiceHASingletonController state=Instantiated mode=Manual requiredState=Configured java.lang.RuntimeException: Exception setting attribute TargetName on mbean xyz:service=TestServiceHASingletonController Caused by: javax.management.InvalidAttributeValueException: Set attribute has class class javax.management.ObjectName loaded from null that is not assignable to attribute class class javax.management.ObjectName loaded from BaseClassLoader@15b9a0c | public interface TestServiceMBean extends HAServiceMBean { | | public void startSingleton(); | | public void stopSingleton(); | | } | | | public class TestService extends HAServiceMBeanSupport | implements TestServiceMBean { | | private static Logger logger = Logger.getLogger( | TestService.class); | | | @Override | public void startSingleton() { | logger.info("Start Singleton Service"); | } | | @Override | public void stopSingleton(){ | logger.info("Stop Singleton Service"); | } | | @Override | protected void createService() throws Exception { | super.createService(); | logger.info("Create Service"); | } | | @Override | protected void startService() throws Exception { | super.startService(); | logger.info("Start Service"); | } | | @Override | protected void stopService() throws Exception { | super.stopService(); | logger.info("Stop Service"); | } | | @Override | protected void destroyService() throws Exception { | super.destroyService(); | | logger.info("Destroy Service"); | } | } | | <?xml version="1.0" encoding="UTF-8" ?> | <server> | <mbean | code="xyz.TestService" | name="xyz:service=TestService"> | <!-- | I tried to inject HAPartition like below as setting ClusteredPartition is deprecated, | unfortunately it didnt work | | <depends>HAPartition</depends> | <property name="HAPartition"><inject bean="HAPartition"/></property> | --> | | <depends optional-attribute-name="ClusterPartition" proxy-type="attribute"> | jboss:partition=${jboss.partition.name:DefaultPartition},service=HAPartition | </depends> | </mbean> | | <mbean code="org.jboss.ha.singleton.HASingletonController" | name="xyz:service=TestServiceHASingletonController"> | <depends optional-attribute-name="ClusterPartition" proxy-type="attribute"> | jboss:partition=${jboss.partition.name:DefaultPartition},service=HAPartition | </depends> | <depends optional-attribute-name="TargetName"> | xyz:service=TestService | </depends> | <attribute name="TargetStartMethod">startSingleton</attribute> | <attribute name="TargetStopMethod">stopSingleton</attribute> | </mbean> | </server> | View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4229359#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...