A-MQ Returns javax.management.InstanceAlreadyExistsException

Issue

• A network of brokers is configured to use Duplex connections, but when a message is sent to an existing queue a javax.management.InstanceAlreadyExistsException warning message is logged.

Broker Configuration Details:

<networkConnectors>
    <networkConnector 
        name="duplexConnection" 
        userName="userName" 
        password="password"
        uri="static://(tcp://localhost:port)"
        duplex="true"
        networkTTL="3" />
</networkConnectors>

Warning Message Details:

javax.management.InstanceAlreadyExistsException: org.apache.activemq:brokerName=amqBroker,connector=duplexNetworkConnectors,networkConnectorName=#0,networkBridge=tcp_//localhost_port,type=Broker,direction=inbound,destinationType=Queue,destinationName=Example
    at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437)

• By moving the installation directory of Fuse/A-MQ to a new directory and starting the server a javax.management.InstanceAlreadyExistsException error message is logged.