Operating System: All
Platform: All

May by fixed after netty-transpot-native-epoll dependency is OSGI bundle,
as mentioned above netty-transpot-native-epoll is not OSQI bundle and after embeding it into sxp-core bundle netty have problem with loading resources from other bundles ... which result in UnsatisfiedLinkError or ClassNotFoundException.

After embeding netty epoll, commons, buffer and transport dependencies all resources are loaded correctly but after wards SocketChannel is not compatibile with some of others netty features such as Lengthfieldbasedframedecoder or ByteArrayEncoder in this specific case and after adding it into channel pipeline throws error IncompatibleClassChangeError.

Can you post the specific errors and patches which reproduce them?

https://git.opendaylight.org/gerrit/#/c/30887/ patch

io.netty.channel.ChannelPipelineException: org.opendaylight.sxp.core.handler.LengthFieldBasedFrameDecoderImpl.handlerRemoved() has thrown an exception.
at io.netty.channel.DefaultChannelPipeline.callHandlerRemoved0(DefaultChannelPipeline.java:530)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.DefaultChannelPipeline.callHandlerRemoved(DefaultChannelPipeline.java:521)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.DefaultChannelPipeline.remove0(DefaultChannelPipeline.java:351)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.DefaultChannelPipeline.remove(DefaultChannelPipeline.java:322)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.DefaultChannelPipeline.callHandlerAdded0(DefaultChannelPipeline.java:491)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.DefaultChannelPipeline.callHandlerAdded(DefaultChannelPipeline.java:482)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.DefaultChannelPipeline.addLast0(DefaultChannelPipeline.java:146)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.DefaultChannelPipeline.addLast(DefaultChannelPipeline.java:129)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.DefaultChannelPipeline.addLast(DefaultChannelPipeline.java:120)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at org.opendaylight.sxp.core.service.ConnectFacade$3.initChannel(ConnectFacade.java:100)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at org.opendaylight.sxp.core.service.ConnectFacade$3.initChannel(ConnectFacade.java:97)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.ChannelInitializer.channelRegistered(ChannelInitializer.java:68)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRegistered(AbstractChannelHandlerContext.java:143)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRegistered(AbstractChannelHandlerContext.java:129)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.DefaultChannelPipeline.fireChannelRegistered(DefaultChannelPipeline.java:733)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.AbstractChannel$AbstractUnsafe.register0(AbstractChannel.java:450)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.AbstractChannel$AbstractUnsafe.access$100(AbstractChannel.java:378)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.AbstractChannel$AbstractUnsafe$1.run(AbstractChannel.java:424)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:358)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:259)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:112)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
at java.lang.Thread.run(Thread.java:745)[:1.7.0_91]
Caused by: java.lang.IncompatibleClassChangeError
at io.netty.channel.DefaultChannelPipeline.callHandlerRemoved0(DefaultChannelPipeline.java:527)[229:org.opendaylight.sxp.core:1.3.0.SNAPSHOT]
... 22 more

https://git.opendaylight.org/gerrit/#/c/30887/

Minimal version of netty is 4.0.37.Final for using TCP-MD5 from netty epoll.