Scala Netty服务器抛出无效的版本格式错误

我在EC2控制台上生产的一个play framework 2.4应用程序开始抛出以下错误，尽管在过去3周内没有对服务器进行任何更改。正如您所见，错误不是从应用程序本身抛出的，而是从Netty服务器的HttpVersion类抛出的。任何有助于隔离病因的方法都会非常有用

Exception caught in Netty
java.lang.IllegalArgumentException: invalid version format: (WINDOWS NT 6.1; RV:31.0) GECKO/20100101 FIREFOX/31.0
    at org.jboss.netty.handler.codec.http.HttpVersion.<init>(HttpVersion.java:94) ~[io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.handler.codec.http.HttpVersion.valueOf(HttpVersion.java:62) ~[io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.handler.codec.http.HttpRequestDecoder.createMessage(HttpRequestDecoder.java:75) ~[io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.handler.codec.http.HttpMessageDecoder.decode(HttpMessageDecoder.java:191) ~[io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.handler.codec.http.HttpMessageDecoder.decode(HttpMessageDecoder.java:102) ~[io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:500) ~[io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.handler.codec.replay.ReplayingDecoder.cleanup(ReplayingDecoder.java:554) ~[io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.handler.codec.frame.FrameDecoder.channelDisconnected(FrameDecoder.java:365) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:102) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.Channels.fireChannelDisconnected(Channels.java:396) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.close(AbstractNioWorker.java:360) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.handleAcceptedSocket(NioServerSocketPipelineSink.java:81) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.eventSunk(NioServerSocketPipelineSink.java:36) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendDownstream(DefaultChannelPipeline.java:779) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.handler.codec.oneone.OneToOneEncoder.handleDownstream(OneToOneEncoder.java:54) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline.sendDownstream(DefaultChannelPipeline.java:591) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendDownstream(DefaultChannelPipeline.java:784) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.SimpleChannelHandler.closeRequested(SimpleChannelHandler.java:334) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.SimpleChannelHandler.handleDownstream(SimpleChannelHandler.java:260) [io.netty.netty-3.10.4.Final.jar:na]
    at com.typesafe.netty.http.pipelining.HttpPipeliningHandler.handleDownstream(HttpPipeliningHandler.java:106) [com.typesafe.netty.netty-http-pipelining-1.1.4.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline.sendDownstream(DefaultChannelPipeline.java:591) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline.sendDownstream(DefaultChannelPipeline.java:582) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.Channels.close(Channels.java:812) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.AbstractChannel.close(AbstractChannel.java:206) [io.netty.netty-3.10.4.Final.jar:na]
    at play.core.server.netty.PlayDefaultUpstreamHandler.exceptionCaught(PlayDefaultUpstreamHandler.scala:66) [com.typesafe.play.play-netty-server_2.11-2.4.6.jar:2.4.6]
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.SimpleChannelHandler.exceptionCaught(SimpleChannelHandler.java:156) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:130) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.exceptionCaught(SimpleChannelUpstreamHandler.java:153) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.handler.codec.frame.FrameDecoder.exceptionCaught(FrameDecoder.java:377) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.Channels.fireExceptionCaught(Channels.java:525) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.AbstractChannelSink.exceptionCaught(AbstractChannelSink.java:48) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline.notifyHandlerException(DefaultChannelPipeline.java:658) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:566) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:337) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) [io.netty.netty-3.10.4.Final.jar:na]
    at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) [io.netty.netty-3.10.4.Final.jar:na]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_45]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_45]
    at java.lang.Thread.run(Thread.java:745) [na:1.8.0_45]

在Netty中捕获异常
java.lang.IllegalArgumentException:版本格式无效：（WINDOWS NT 6.1；RV:31.0）GECKO/20100101 FIREFOX/31.0
在org.jboss.netty.handler.codec.http.HttpVersion.（HttpVersion.java:94）~[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.handler.codec.http.HttpVersion.valueOf（HttpVersion.java:62）~[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.handler.codec.http.HttpRequestDecoder.createMessage（HttpRequestDecoder.java:75）~[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.handler.codec.http.HttpMessageDecoder.decode（HttpMessageDecoder.java:191）~[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.handler.codec.http.HttpMessageDecoder.decode（HttpMessageDecoder.java:102）~[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode（ReplayingDecoder.java:500）~[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.handler.codec.replay.ReplayingDecoder.cleanup（ReplayingDecoder.java:554）~[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.handler.codec.frame.FrameDecoder.channelDisconnected（FrameDecoder.java:365）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream（SimpleChannelUpstreamHandler.java:102）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream（DefaultChannelPipeline.java:564）[io.netty.netty-3.10.4.Final.jar:na]
位于org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream（DefaultChannelPipeline.java:559）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.Channels.fireChannelDisconnected（Channels.java:396）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.socket.nio.AbstractNioWorker.close（AbstractNioWorker.java:360）[io.netty.netty-3.10.4.Final.jar:na]
位于org.jboss.netty.channel.socket.nio.NioServerSocketPipelineSink.handleAcceptedSocket（NioServerSocketPipelineSink.java:81）[io.netty.netty-3.10.4.Final.jar:na]
位于org.jboss.netty.channel.socket.nio.nioserverssocketpipelinesink.eventSunk（nioserverssocketpipelinesink.java:36）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendDownstream（DefaultChannelPipeline.java:779）[io.netty.netty-3.10.4.Final.jar:na]
位于org.jboss.netty.handler.codec.oneone.OneToOneEncoder.handleDownstream（OneToOneEncoder.java:54）[io.netty.netty-3.10.4.Final.jar:na]
位于org.jboss.netty.channel.DefaultChannelPipeline.sendDownstream（DefaultChannelPipeline.java:591）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendDownstream（DefaultChannelPipeline.java:784）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.SimpleChannelHandler.closeRequested（SimpleChannelHandler.java:334）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.SimpleChannelHandler.handleDownstream（SimpleChannelHandler.java:260）[io.netty.netty-3.10.4.Final.jar:na]
在com.typesafe.netty.http.pipeling.httppipelinghandler.handleDownstream（httppipelinghandler.java:106）[com.typesafe.netty.netty-http-pipeling-1.1.4.jar:na]
位于org.jboss.netty.channel.DefaultChannelPipeline.sendDownstream（DefaultChannelPipeline.java:591）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.DefaultChannelPipeline.sendDownstream（DefaultChannelPipeline.java:582）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.Channels.close（Channels.java:812）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.AbstractChannel.close（AbstractChannel.java:206）[io.netty.netty-3.10.4.Final.jar:na]
在play.core.server.netty.playdaultupstreamhandler.exceptionCaught（playdaultupstreamhandler.scala:66）[com.typesafe.play.play-netty-server_2.11-2.4.6.jar:2.4.6]
在org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream（SimpleChannelUpstreamHandler.java:112）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream（DefaultChannelPipeline.java:564）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream（DefaultChannelPipeline.java:791）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.SimpleChannelHandler.exceptionCaught（SimpleChannelHandler.java:156）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.SimpleChannelHandler.handleUpstream（SimpleChannelHandler.java:130）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream（DefaultChannelPipeline.java:564）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream（DefaultChannelPipeline.java:791）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.SimpleChannelUpstreamHandler.exceptionCaught（SimpleChannelUpstreamHandler.java:153）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream（SimpleChannelUpstreamHandler.java:112）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream（DefaultChannelPipeline.java:564）[io.netty.netty-3.10.4.Final.jar:na]
在org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream（DefaultChannelPipeline.java:791）[io.netty.netty-3.10.4.Final.jar:na]
位于org.jboss.netty.handler.codec.frame.FrameDecoder.e