NPE in BGP-LS MPLS-TE LSP serializer

Steps to reproduce:
1. Start ODL BGP
2. Configure BGP peer and connect peer
3. Peer sends Update message with LSP-TE NLRI
4. Message is parsed correctly
5. Observe NPE when creating route-key for RIB route entry

10:38:36.806 [nioEventLoopGroup-2-2] WARN i.n.channel.DefaultChannelPipeline - An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.
java.lang.NullPointerException: null
at org.opendaylight.protocol.bgp.linkstate.nlri.LinkstateNlriParser.serializeNlri(LinkstateNlriParser.java:316) ~[bgp-linkstate-0.6.0-SNAPSHOT.jar:na]
at org.opendaylight.protocol.bgp.linkstate.LinkstateRIBSupport.createRouteKey(LinkstateRIBSupport.java:164) ~[bgp-linkstate-0.6.0-SNAPSHOT.jar:na]
at org.opendaylight.protocol.bgp.linkstate.LinkstateRIBSupport.processDestination(LinkstateRIBSupport.java:145) ~[bgp-linkstate-0.6.0-SNAPSHOT.jar:na]
at org.opendaylight.protocol.bgp.linkstate.LinkstateRIBSupport.putDestinationRoutes(LinkstateRIBSupport.java:158) ~[bgp-linkstate-0.6.0-SNAPSHOT.jar:na]
at org.opendaylight.protocol.bgp.rib.spi.AbstractRIBSupport.putRoutes(AbstractRIBSupport.java:273) ~[bgp-rib-spi-0.6.0-SNAPSHOT.jar:na]
at org.opendaylight.protocol.bgp.rib.spi.AbstractRIBSupport.putRoutes(AbstractRIBSupport.java:210) ~[bgp-rib-spi-0.6.0-SNAPSHOT.jar:na]
at org.opendaylight.protocol.bgp.rib.impl.RIBSupportContextImpl.writeRoutes(RIBSupportContextImpl.java:49) ~[classes/:na]
at org.opendaylight.protocol.bgp.rib.impl.TableContext.writeRoutes(TableContext.java:49) ~[classes/:na]
at org.opendaylight.protocol.bgp.rib.impl.AdjRibInWriter.updateRoutes(AdjRibInWriter.java:254) ~[classes/:na]
at org.opendaylight.protocol.bgp.rib.impl.BGPPeer.onMessage(BGPPeer.java:125) ~[classes/:na]
at org.opendaylight.protocol.bgp.rib.impl.BGPSessionImpl.handleMessage(BGPSessionImpl.java:218) ~[classes/:na]
at org.opendaylight.protocol.bgp.rib.impl.BGPSessionImpl.channelRead0(BGPSessionImpl.java:428) ~[classes/:na]
at org.opendaylight.protocol.bgp.rib.impl.BGPSessionImpl.channelRead0(BGPSessionImpl.java:1) ~[classes/:na]
at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) ~[netty-transport-4.0.33.Final.jar:4.0.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:318) [netty-transport-4.0.33.Final.jar:4.0.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:304) [netty-transport-4.0.33.Final.jar:4.0.33.Final]
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:276) [netty-codec-4.0.33.Final.jar:4.0.33.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:263) [netty-codec-4.0.33.Final.jar:4.0.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:318) [netty-transport-4.0.33.Final.jar:4.0.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:304) [netty-transport-4.0.33.Final.jar:4.0.33.Final]
at io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:276) [netty-codec-4.0.33.Final.jar:4.0.33.Final]
at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:263) [netty-codec-4.0.33.Final.jar:4.0.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:318) [netty-transport-4.0.33.Final.jar:4.0.33.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:304) [netty-transport-4.0.33.Final.jar:4.0.33.Final]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:846) [netty-transport-4.0.33.Final.jar:4.0.33.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131) [netty-transport-4.0.33.Final.jar:4.0.33.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511) [netty-transport-4.0.33.Final.jar:4.0.33.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468) [netty-transport-4.0.33.Final.jar:4.0.33.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382) [netty-transport-4.0.33.Final.jar:4.0.33.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354) [netty-transport-4.0.33.Final.jar:4.0.33.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:112) [netty-common-4.0.33.Final.jar:4.0.33.Final]
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137) [netty-common-4.0.33.Final.jar:4.0.33.Final]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_66]