elasticsearch Exception： io.netty.util.internal.PlatformDependent.newAtomicIntegerFieldUpdater

ERROR StatusLogger Log4j2 could not find a logging implementation. Please add log4j-core to the classpath. Using SimpleLogger to log to the console...
Exception in thread "elasticsearch[_client_][management][T#1]" java.lang.NoSuchMethodError: io.netty.util.internal.PlatformDependent.newAtomicIntegerFieldUpdater(Ljava/lang/Class;Ljava/lang/String;)Ljava/util/concurrent/atomic/AtomicIntegerFieldUpdater;
    at io.netty.buffer.AbstractReferenceCountedByteBuf.(AbstractReferenceCountedByteBuf.java:32)
    at io.netty.buffer.Unpooled.wrappedBuffer(Unpooled.java:157)
    at io.netty.buffer.Unpooled.wrappedBuffer(Unpooled.java:171)
    at org.elasticsearch.transport.netty4.Netty4Utils.toByteBuf(Netty4Utils.java:119)
    at org.elasticsearch.transport.netty4.Netty4Transport.sendMessage(Netty4Transport.java:396)
    at org.elasticsearch.transport.netty4.Netty4Transport.sendMessage(Netty4Transport.java:95)
    at org.elasticsearch.transport.TcpTransport.internalSendMessage(TcpTransport.java:1121)
    at org.elasticsearch.transport.TcpTransport.sendRequestToChannel(TcpTransport.java:1110)
    at org.elasticsearch.transport.TcpTransport.executeHandshake(TcpTransport.java:1606)
    at org.elasticsearch.transport.TcpTransport.openConnection(TcpTransport.java:577)
    at org.elasticsearch.transport.TcpTransport.openConnection(TcpTransport.java:117)
    at org.elasticsearch.transport.TransportService.openConnection(TransportService.java:351)
    at org.elasticsearch.client.transport.TransportClientNodesService$SniffNodesSampler$1.doRun(TransportClientNodesService.java:506)
    at org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingAbstractRunnable.doRun(ThreadContext.java:638)
    at org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:37)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)

解决方法，pom.xml 更换 netty 版本：

<dependency>
   <groupId>io.nettygroupId>
    <artifactId>netty-transportartifactId>
    <version>4.1.15.Finalversion>
dependency>