"java.net.BindException: Address already in use" error when creating a child container with jboss-fuse-medium profile

Issue

I am using JBoss Fuse 6.1. I am getting following error when I try to create a local child container with "jboss-fuse-medium" profile:

java.io.IOException: Transport Connector could not be registered in JMX: Failed to bind to server socket: tcp://0.0.0.0:61616 due to: java.net.BindException: Address already in use
    at org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:27)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    at org.apache.activemq.broker.BrokerService.registerConnectorMBean(BrokerService.java:2069)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    at org.apache.activemq.broker.BrokerService.startTransportConnector(BrokerService.java:2531)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    at org.apache.activemq.broker.BrokerService.startAllConnectors(BrokerService.java:2448)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    at org.apache.activemq.broker.BrokerService.doStartBroker(BrokerService.java:693)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    at org.apache.activemq.broker.BrokerService.startBroker(BrokerService.java:659)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    at org.apache.activemq.broker.BrokerService.start(BrokerService.java:595)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    at org.fusesource.mq.fabric.ActiveMQServiceFactory$ClusteredConfiguration.org$fusesource$mq$fabric$ActiveMQServiceFactory$
        ClusteredConfiguration$$doStart(ActiveMQServiceFactory.scala:420)[224:org.jboss.amq.mq-fabric:6.1.0.redhat-378]
    at org.fusesource.mq.fabric.ActiveMQServiceFactory$ClusteredConfiguration$$anon$4.run(ActiveMQServiceFactory.scala:368)[224:org.jboss.amq.mq-fabric:6.1.0.redhat-378]
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)[:1.7.0_25]
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)[:1.7.0_25]
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)[:1.7.0_25]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)[:1.7.0_25]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)[:1.7.0_25]
    at java.lang.Thread.run(Thread.java:724)[:1.7.0_25]
Caused by: java.io.IOException: Failed to bind to server socket: tcp://0.0.0.0:61616 due to: java.net.BindException: Address already in use
    at org.apache.activemq.util.IOExceptionSupport.create(IOExceptionSupport.java:33)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    at org.apache.activemq.transport.tcp.TcpTransportServer.bind(TcpTransportServer.java:135)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    at org.apache.activemq.transport.tcp.TcpTransportFactory.doBind(TcpTransportFactory.java:56)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    at org.apache.activemq.transport.TransportFactorySupport.bind(TransportFactorySupport.java:40)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    at org.apache.activemq.broker.TransportConnector.createTransportServer(TransportConnector.java:318)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    at org.apache.activemq.broker.TransportConnector.getServer(TransportConnector.java:144)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    at org.apache.activemq.broker.TransportConnector.asManagedConnector(TransportConnector.java:110)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    at org.apache.activemq.broker.BrokerService.registerConnectorMBean(BrokerService.java:2064)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    ... 13 more
Caused by: java.net.BindException: Address already in use
    at java.net.PlainSocketImpl.socketBind(Native Method)[:1.7.0_25]
    at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:376)[:1.7.0_25]
    at java.net.ServerSocket.bind(ServerSocket.java:376)[:1.7.0_25]
    at java.net.ServerSocket.<init>(ServerSocket.java:237)[:1.7.0_25]
    at javax.net.DefaultServerSocketFactory.createServerSocket(ServerSocketFactory.java:231)[:1.7.0_25]
    at org.apache.activemq.transport.tcp.TcpTransportServer.bind(TcpTransportServer.java:132)[118:org.apache.activemq.activemq-osgi:5.9.0.redhat-610378]
    ... 19 more

Any reason why I am getting this "Address already in use" error?