Twiddle command throws "InstanceNotFoundException" when JBoss EAP server is stared with -b option

Issue

• Why twiddle command fails to execute with following error when JBoss EAP server is stared with -b option?

[admin@admin bin]$ ./twiddle.sh -u admin -p admin -s 127.0.0.1:1099 get "jboss.web:type=ThreadPool,name=http-aaa.bbb.com/127.0.0.1-8080"

10:32:40,762 ERROR [Twiddle] Exec failed
javax.management.InstanceNotFoundException: jboss.web:type=ThreadPool,name=http-aaa.bbb.com/127.0.0.1-8080 is not registered.
        at org.jboss.mx.server.registry.BasicMBeanRegistry.get(BasicMBeanRegistry.java:523)
        at org.jboss.mx.server.MBeanServerImpl.getMBeanInfo(MBeanServerImpl.java:666)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.jboss.jmx.connector.invoker.InvokerAdaptorService.invoke(InvokerAdaptorService.java:266)
        at sun.reflect.GeneratedMethodAccessor324.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
        at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
        at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)

• How to find the MBean's actual name to execute twiddle command?