project_key: JBEPP

When ever the portal is shutdown, the following stack trace occurs:

11:19:14,663 WARN  [JMXManagementProvider] Could not unregister the MBean exo:portal="portal",service=TokenStore,name="jcr-token"
javax.management.InstanceNotFoundException: exo:portal="portal",service=TokenStore,name="jcr-token" is not registered.
	at org.jboss.mx.server.registry.BasicMBeanRegistry.get(BasicMBeanRegistry.java:526)
	at org.jboss.mx.server.MBeanServerImpl.unregisterMBean(MBeanServerImpl.java:383)
	at org.exoplatform.management.jmx.impl.JMXManagementProvider$3.run(JMXManagementProvider.java:203)
	at org.exoplatform.management.jmx.impl.JMXManagementProvider$3.run(JMXManagementProvider.java:200)
	at org.exoplatform.commons.utils.SecurityHelper.doPrivilegedExceptionAction(SecurityHelper.java:309)
	at org.exoplatform.management.jmx.impl.JMXManagementProvider.unmanage(JMXManagementProvider.java:199)
	at org.exoplatform.container.management.ManagementContextImpl.unregisterAll(ManagementContextImpl.java:271)
	at org.exoplatform.container.management.ManageableContainer.stop(ManageableContainer.java:260)
	at org.exoplatform.container.ExoContainer.stop(ExoContainer.java:281)
	at org.exoplatform.container.PortalContainer.stop(PortalContainer.java:674)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:616)
	at org.exoplatform.container.LifecycleVisitor.traverse(LifecycleVisitor.java:100)
	at org.exoplatform.container.LifecycleVisitor.stop(LifecycleVisitor.java:179)
	at org.exoplatform.container.ConcurrentPicoContainer.stop(ConcurrentPicoContainer.java:567)
	at org.exoplatform.container.management.ManageableContainer.stop(ManageableContainer.java:262)
	at org.exoplatform.container.ExoContainer.stop(ExoContainer.java:281)
	at org.exoplatform.container.RootContainer.stop(RootContainer.java:728)
	at org.exoplatform.container.RootContainer$ShutdownThread.run(RootContainer.java:721)

NOTE: its a WARN and not an error stack trace, but it still should not be happening.