When accessing the Administration Console in JBoss 6.1.0-SNAPSHOT the JMS Manager is unavailable. When inspecting the log the following stack trace can be found.

2011-07-20 09:21:38,797 INFO [org.rhq.core.pc.inventory.RuntimeDiscoveryExecutor] (InventoryManager.discovery-1) Scanned [0] servers and found [0] total descendant Resources.
2011-07-20 09:21:38,812 INFO [org.rhq.core.pc.inventory.RuntimeDiscoveryExecutor] (InventoryManager.discovery-1) Running runtime discovery scan rooted at [platform]
2011-07-20 09:21:38,922 WARN [org.rhq.core.pc.inventory.InventoryManager] (InventoryManager.discovery-1) Failure during discovery for [JMS Manager] Resources - failed after 0 ms.: java.lang.Exception: Discovery component invocation failed.
at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:283) [:3.0.0]
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) [:1.6.0_20]
at java.util.concurrent.FutureTask.run(FutureTask.java:138) [:1.6.0_20]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_20]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_20]
at java.lang.Thread.run(Thread.java:619) [:1.6.0_20]
Caused by: java.lang.reflect.UndeclaredThrowableException: Failed to invoke method 'getVersion' on component 'JMSServerMO' with parameters [].
at org.jboss.profileservice.plugins.management.util.AbstractManagedComponentRuntimeDispatcher.invoke(AbstractManagedComponentRuntimeDispatcher.java:148) [:0.2.2]
at org.jboss.profileservice.management.DelegatingComponentDispatcherImpl.invoke(DelegatingComponentDispatcherImpl.java:93) [:0.2.2]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_20]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [:1.6.0_20]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_20]
at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_20]
at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:121) [jboss-aop.jar:2.2.1.GA]
at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82) [:1.0.1.GA]
at org.jboss.profileservice.remoting.ProfileServiceInvocationHandler.invoke(ProfileServiceInvocationHandler.java:99) [:6.1.0-SNAPSHOT]
at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:967) [:]
at org.jboss.remoting.transport.local.LocalClientInvoker.invoke(LocalClientInvoker.java:106) [:]
at org.jboss.remoting.Client.invoke(Client.java:2070) [:]
at org.jboss.remoting.Client.invoke(Client.java:879) [:]
at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:60) [:1.0.1.GA]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]
at org.jboss.aspects.remoting.MergeMetaDataInterceptor.invoke(MergeMetaDataInterceptor.java:74) [:1.0.1.GA]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]
at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:65) [:1.0.1]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]
at org.jboss.aop.generatedproxies.AOPProxy$0.invoke(AOPProxy$0.java) [:]
at org.jboss.profileservice.management.client.ManagedOperationDelegate.invoke(ManagedOperationDelegate.java:63) [:6.1.0-SNAPSHOT]
at org.jboss.as.integration.hornetq.jopr.JMSManagerDiscoveryComponent.getVersion(JMSManagerDiscoveryComponent.java:74)
at org.jboss.as.integration.hornetq.jopr.JMSManagerDiscoveryComponent.discoverResources(JMSManagerDiscoveryComponent.java:48)
at sun.reflect.GeneratedMethodAccessor358.invoke(Unknown Source) [:1.6.0_20]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_20]
at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_20]
at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:279) [:3.0.0]
... 5 more
Caused by: java.lang.NullPointerException
at org.jboss.as.integration.hornetq.management.jms.JMSManageMO.getJmsServerControl(JMSManageMO.java:128) [:6.1.0-SNAPSHOT]
at org.jboss.as.integration.hornetq.management.jms.JMSServerMO.getVersion(JMSServerMO.java:47) [:6.1.0-SNAPSHOT]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_20]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [:1.6.0_20]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_20]
at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_20]
at org.jboss.reflect.plugins.introspection.ReflectionUtils.invoke(ReflectionUtils.java:60) [jboss-reflect.jar:2.2.1.SP1]
at org.jboss.reflect.plugins.introspection.ReflectMethodInfoImpl.invoke(ReflectMethodInfoImpl.java:168) [jboss-reflect.jar:2.2.1.SP1]
at org.jboss.joinpoint.plugins.BasicMethodJoinPoint.dispatch(BasicMethodJoinPoint.java:66) [jboss-reflect.jar:2.2.1.SP1]
at org.jboss.beans.info.plugins.AbstractBeanInfo.invoke(AbstractBeanInfo.java:300) [jboss-reflect.jar:2.2.1.SP1]
at org.jboss.kernel.plugins.dependency.AbstractKernelControllerContext.invoke(AbstractKernelControllerContext.java:305) [jboss-kernel.jar:2.2.0.SP1]
at org.jboss.kernel.plugins.registry.basic.LifecycleAwareKernelBus$1.dispatch(LifecycleAwareKernelBus.java:61) [jboss-kernel.jar:2.2.0.SP1]
at org.jboss.kernel.plugins.registry.basic.LifecycleAwareKernelBus$1.dispatch(LifecycleAwareKernelBus.java:58) [jboss-kernel.jar:2.2.0.SP1]
at org.jboss.kernel.plugins.registry.basic.BasicKernelBus.execute(BasicKernelBus.java:71) [jboss-kernel.jar:2.2.0.SP1]
at org.jboss.kernel.plugins.registry.basic.LifecycleAwareKernelBus.invoke(LifecycleAwareKernelBus.java:57) [jboss-kernel.jar:2.2.0.SP1]
at org.jboss.profileservice.management.KernelBusRuntimeComponentDispatcher.invoke(KernelBusRuntimeComponentDispatcher.java:85) [:0.2.2]
at org.jboss.profileservice.plugins.management.util.AbstractManagedComponentRuntimeDispatcher.invoke(AbstractManagedComponentRuntimeDispatcher.java:135) [:0.2.2]
at org.jboss.profileservice.management.DelegatingComponentDispatcherImpl.invoke(DelegatingComponentDispatcherImpl.java:93) [:0.2.2]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [:1.6.0_20]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) [:1.6.0_20]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_20]
at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_20]
at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:121) [jboss-aop.jar:2.2.1.GA]
at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82) [:1.0.1.GA]
at org.jboss.profileservice.remoting.ProfileServiceInvocationHandler.invoke(ProfileServiceInvocationHandler.java:99) [:6.1.0-SNAPSHOT]
at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:967) [:]
at org.jboss.remoting.transport.local.LocalClientInvoker.invoke(LocalClientInvoker.java:106) [:]
at org.jboss.remoting.Client.invoke(Client.java:2070) [:]
at org.jboss.remoting.Client.invoke(Client.java:879) [:]
at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:60) [:1.0.1.GA]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]
at org.jboss.aspects.remoting.MergeMetaDataInterceptor.invoke(MergeMetaDataInterceptor.java:74) [:1.0.1.GA]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]
at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:65) [:1.0.1]
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:102) [jboss-aop.jar:2.2.1.GA]
at org.jboss.aop.generatedproxies.AOPProxy$0.invoke(AOPProxy$0.java) [:]
at org.jboss.profileservice.management.client.ManagedOperationDelegate.invoke(ManagedOperationDelegate.java:63) [:6.1.0-SNAPSHOT]
at org.jboss.as.integration.hornetq.jopr.JMSManagerDiscoveryComponent.getVersion(JMSManagerDiscoveryComponent.java:74)
at org.jboss.as.integration.hornetq.jopr.JMSManagerDiscoveryComponent.discoverResources(JMSManagerDiscoveryComponent.java:48)
at sun.reflect.GeneratedMethodAccessor358.invoke(Unknown Source) [:1.6.0_20]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) [:1.6.0_20]
at java.lang.reflect.Method.invoke(Method.java:597) [:1.6.0_20]
at org.rhq.core.pc.util.DiscoveryComponentProxyFactory$ComponentInvocationThread.call(DiscoveryComponentProxyFactory.java:279) [:3.0.0]
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303) [:1.6.0_20]
at java.util.concurrent.FutureTask.run(FutureTask.java:138) [:1.6.0_20]
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) [:1.6.0_20]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) [:1.6.0_20]
at java.lang.Thread.run(Thread.java:619) [:1.6.0_20]
at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:72) [:1.0.1.GA]
... 18 more