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Samebug tips

  1. ,
    Expert tip

    A few things cause this exception:
    1) Check if you have all jars and if they're in the correct path.
    2) Your classpath might be broken, you can define it in the command line with java -cp yourClassPath or at your IDE if you're using one.

  2. ,

    you can change your scala version to 2.11.11

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java.lang.ClassNotFoundException: io.netty.buffer.ByteBufUtil$HexUtil	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at io.netty.buffer.ByteBufUtil.hexDump(ByteBufUtil.java:123)	at io.netty.channel.DefaultChannelId.asShortText(DefaultChannelId.java:240)	at io.netty.channel.AbstractChannel.toString(AbstractChannel.java:385)	at java.lang.String.valueOf(String.java:2994)	at java.lang.StringBuilder.append(StringBuilder.java:131)	at io.netty.bootstrap.ServerBootstrap$ServerBootstrapAcceptor.forceClose(ServerBootstrap.java:260)	at io.netty.bootstrap.ServerBootstrap$ServerBootstrapAcceptor.channelRead(ServerBootstrap.java:254)	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:334)	at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:326)	at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1320)	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:348)	at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:334)	at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:905)	at io.netty.channel.nio.AbstractNioMessageChannel$NioMessageUnsafe.read(AbstractNioMessageChannel.java:93)	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:563)	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:504)	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:418)	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:385)	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:742)	at java.lang.Thread.run(Thread.java:745)