Exception in thread "pool-31-thread-1" java.lang.RuntimeException: java.lang.NumberFormatException: For input string: "0xff"

Displaying all SWITCHES and only one HOSTS in DLUX topology GUI.

I have started karaf and installed the following features.

feature:install odl-restconf
feature:install odl-l2switch-switch
feature:install odl-mdsal-apidocs
feature:install odl-l2switch-switch-ui
feature:install odl-adsal-all
feature:install odl-adsal-northbound
feature:install odl-dlux-core
feature:install odl-dlux-node
feature:install odl-dlux-yangui

Then started MININET with following command
>> sudo mn --topo tree,3 --controller 'remote,ip=172.16.69.13,port=6633' --switch ovsk,protocols=OpenFlow13

I am able to ping the hosts without fail.

mininet> pingall

• • • Ping: testing ping reachability
      h1 -> h2 h3 h4 h5 h6 h7 h8
      h2 -> h1 h3 h4 h5 h6 h7 h8
      h3 -> h1 h2 h4 h5 h6 h7 h8
      h4 -> h1 h2 h3 h5 h6 h7 h8
      h5 -> h1 h2 h3 h4 h6 h7 h8
      h6 -> h1 h2 h3 h4 h5 h7 h8
      h7 -> h1 h2 h3 h4 h5 h6 h8
      h8 -> h1 h2 h3 h4 h5 h6 h7
    • Results: 0% dropped (56/56 received)

Now I have opened the DLUX GUI, in the topology section we are able to see the Switches and only one host.

Apart from that we are getting the following Error in Karaf console.

opendaylight-user@root>
opendaylight-user@root>
opendaylight-user@root>Exception in thread "pool-31-thread-1" java.lang.RuntimeException: java.lang.NumberFormatException: For input string: "0xff"
at com.lmax.disruptor.FatalExceptionHandler.handleEventException(FatalExceptionHandler.java:45)
at com.lmax.disruptor.BatchEventProcessor.run(BatchEventProcessor.java:147)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NumberFormatException: For input string: "0xff"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Integer.parseInt(Integer.java:492)
at java.lang.Short.parseShort(Short.java:117)
at java.lang.Short.parseShort(Short.java:143)
at org.opendaylight.l2switch.flow.ReactiveFlowWriter.ignoreThisMac(ReactiveFlowWriter.java:45)
at org.opendaylight.l2switch.flow.ReactiveFlowWriter.onArpPacketReceived(ReactiveFlowWriter.java:77)
at org.opendaylight.yangtools.yang.binding.util.NotificationListenerInvoker.invokeNotification(NotificationListenerInvoker.java:91)
at org.opendaylight.controller.md.sal.binding.impl.BindingDOMNotificationListenerAdapter.onNotification(BindingDOMNotificationListenerAdapter.java:44)
at org.opendaylight.controller.md.sal.dom.broker.impl.DOMNotificationRouterEvent.deliverNotification(DOMNotificationRouterEvent.java:50)
at org.opendaylight.controller.md.sal.dom.broker.impl.DOMNotificationRouter$1.onEvent(DOMNotificationRouter.java:68)
at org.opendaylight.controller.md.sal.dom.broker.impl.DOMNotificationRouter$1.onEvent(DOMNotificationRouter.java:65)
at com.lmax.disruptor.BatchEventProcessor.run(BatchEventProcessor.java:128)
... 3 more

Could you please help me to resolve the issue, i.e. display all SWITCHES and HOSTS in topology GUI.