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java.lang.IllegalArgumentException: empty text	at org.elasticsearch.common.netty.handler.codec.http.HttpVersion.(HttpVersion.java:62)	at org.elasticsearch.common.netty.handler.codec.http.HttpRequestDecoder.createMessage(HttpRequestDecoder.java:75)	at org.elasticsearch.common.netty.handler.codec.http.HttpMessageDecoder.decode(HttpMessageDecoder.java:189)	at org.elasticsearch.common.netty.handler.codec.http.HttpMessageDecoder.decode(HttpMessageDecoder.java:101)	at org.elasticsearch.common.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:500)	at org.elasticsearch.common.netty.handler.codec.replay.ReplayingDecoder.cleanup(ReplayingDecoder.java:554)	at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.channelDisconnected(FrameDecoder.java:365)	at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:102)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)	at org.elasticsearch.common.netty.OpenChannelsHandler.handleUpstream(OpenChannelsHandler.java:74)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)	at org.elasticsearch.common.netty.channel.Channels.fireChannelDisconnected(Channels.java:396)	at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.close(AbstractNioWorker.java:336)	at org.elasticsearch.common.netty.channel.socket.nio.NioServerSocketPipelineSink.handleAcceptedSocket(NioServerSocketPipelineSink.java:81)	at org.elasticsearch.common.netty.channel.socket.nio.NioServerSocketPipelineSink.eventSunk(NioServerSocketPipelineSink.java:36)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendDownstream(DefaultChannelPipeline.java:779)	at org.elasticsearch.common.netty.handler.codec.oneone.OneToOneEncoder.handleDownstream(OneToOneEncoder.java:54)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendDownstream(DefaultChannelPipeline.java:591)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendDownstream(DefaultChannelPipeline.java:582)	at org.elasticsearch.common.netty.channel.Channels.close(Channels.java:812)	at org.elasticsearch.common.netty.channel.AbstractChannel.close(AbstractChannel.java:197)	at org.elasticsearch.http.netty.NettyHttpServerTransport.exceptionCaught(NettyHttpServerTransport.java:306)	at org.elasticsearch.http.netty.HttpRequestHandler.exceptionCaught(HttpRequestHandler.java:49)	at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)	at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.exceptionCaught(SimpleChannelUpstreamHandler.java:153)	at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)	at org.elasticsearch.common.netty.handler.codec.frame.FrameDecoder.exceptionCaught(FrameDecoder.java:377)	at org.elasticsearch.common.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)	at org.elasticsearch.common.netty.OpenChannelsHandler.handleUpstream(OpenChannelsHandler.java:74)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)	at org.elasticsearch.common.netty.channel.Channels.fireExceptionCaught(Channels.java:525)	at org.elasticsearch.common.netty.channel.AbstractChannelSink.exceptionCaught(AbstractChannelSink.java:48)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.notifyHandlerException(DefaultChannelPipeline.java:658)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:566)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:791)	at org.elasticsearch.common.netty.OpenChannelsHandler.handleUpstream(OpenChannelsHandler.java:74)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)	at org.elasticsearch.common.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)	at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:268)	at org.elasticsearch.common.netty.channel.Channels.fireMessageReceived(Channels.java:255)	at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)	at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:107)	at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:312)	at org.elasticsearch.common.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:88)	at org.elasticsearch.common.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)	at org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)	at org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)	at java.lang.Thread.run(Thread.java:662)