I'm using a 3 node cluster and have installed these features:
odl-vpnservice-core, odl-jolokia, odl-dlux-all

after starting all three nodes at once, I saw these exceptions on one
controller only.

there are many of these exceptions, but here is one.

2016-03-15 23:24:46,686 | ERROR | pool-28-thread-1 | DOMNotificationRouterEvent | 154 - org.opendaylight.controller.sal-broker-impl - 1.3.1.SNAPSHOT | Delivery of notification org.opendaylight.controller.md.sal.binding.impl.LazySerializedDOMNotification@420c79e0 caused an error in listener org.opendaylight.controller.md.sal.binding.impl.BindingDOMNotificationListenerAdapter@621f1a9e
java.lang.NumberFormatException: For input string: "L\ufffd\ufffd\ufffd_\ufffd\ufffdO"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)[:1.8.0_71]
at java.lang.Integer.parseInt(Integer.java:580)[:1.8.0_71]
at java.lang.Integer.parseInt(Integer.java:615)[:1.8.0_71]
at org.opendaylight.vpnservice.alivenessmonitor.internal.AlivenessProtocolHandlerLLDP.handlePacketIn(AlivenessProtocolHandlerLLDP.java:115)[311:org.opendaylight.vpnservice.alivenessmonitor-impl:0.2.1.SNAPSHOT]
at org.opendaylight.vpnservice.alivenessmonitor.internal.AlivenessMonitor.onPacketReceived(AlivenessMonitor.java:347)[311:org.opendaylight.vpnservice.alivenessmonitor-impl:0.2.1.SNAPSHOT]
at org.opendaylight.yangtools.yang.binding.util.NotificationListenerInvoker.invokeNotification(NotificationListenerInvoker.java:91)[84:org.opendaylight.mdsal.yang-binding:0.8.1.SNAPSHOT]
at org.opendaylight.controller.md.sal.binding.impl.BindingDOMNotificationListenerAdapter.onNotification(BindingDOMNotificationListenerAdapter.java:44)[156:org.opendaylight.controller.sal-binding-broker-impl:1.3.1.SNAPSHOT]
at org.opendaylight.controller.md.sal.dom.broker.impl.DOMNotificationRouterEvent.deliverNotification(DOMNotificationRouterEvent.java:56)[154:org.opendaylight.controller.sal-broker-impl:1.3.1.SNAPSHOT]
at org.opendaylight.controller.md.sal.dom.broker.impl.DOMNotificationRouter$1.onEvent(DOMNotificationRouter.java:68)[154:org.opendaylight.controller.sal-broker-impl:1.3.1.SNAPSHOT]
at org.opendaylight.controller.md.sal.dom.broker.impl.DOMNotificationRouter$1.onEvent(DOMNotificationRouter.java:65)[154:org.opendaylight.controller.sal-broker-impl:1.3.1.SNAPSHOT]
at com.lmax.disruptor.BatchEventProcessor.run(BatchEventProcessor.java:128)[151:com.lmax.disruptor:3.3.2]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)[:1.8.0_71]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)[:1.8.0_71]
at java.lang.Thread.run(Thread.java:745)[:1.8.0_71]