Description of problem:The traffic to the PNF from a vm without FIP fails.

The below exception is seen in the logs. It starts working once we ping the PNF from a vm with FIP.

2018-07-11T02:16:43,085 | WARN | nioEventLoopGroup-9-4 | OFDecoder | 396 - org.opendaylight.openflowplugin.openflowjava.openflow-protocol-impl - 0.6.3.redhat-1 | Message deserialization failed
java.lang.NullPointerException: null
at org.opendaylight.openflowplugin.openflow.md.core.extension.MatchExtensionHelper.injectExtension(MatchExtensionHelper.java:83) [374:org.opendaylight.openflowplugin:0.6.3.redhat-1]
at org.opendaylight.openflowplugin.impl.protocol.deserialization.match.MatchDeserializer.deserializeEntry(MatchDeserializer.java:104) [387:org.opendaylight.openflowplugin.impl:0.6.3.redhat-1]
at org.opendaylight.openflowplugin.impl.protocol.deserialization.match.MatchDeserializer.deserialize(MatchDeserializer.java:59) [387:org.opendaylight.openflowplugin.impl:0.6.3.redhat-1]

Steps to Reproduce:
1.Create network router and set g/w
2.Create a vm on the network
3.Ping the PNF