exception - PlayFramework Netty IllegalArgumentException: empty text -


every , play server throws exception. there way stop or suppress it? not seem causing harm though.

[[31merror[0m] - play.core.server.netty.playdefaultupstreamhandler - exception caught in netty java.lang.illegalargumentexception: empty text     @ org.jboss.netty.handler.codec.http.httpversion.<init>(httpversion.java:89) ~[netty-3.10.4.final.jar:na]     @ org.jboss.netty.handler.codec.http.httpversion.valueof(httpversion.java:62) ~[netty-3.10.4.final.jar:na]     @ org.jboss.netty.handler.codec.http.httprequestdecoder.createmessage(httprequestdecoder.java:75) ~[netty-3.10.4.final.jar:na]     @ org.jboss.netty.handler.codec.http.httpmessagedecoder.decode(httpmessagedecoder.java:191) ~[netty-3.10.4.final.jar:na]     @ org.jboss.netty.handler.codec.http.httpmessagedecoder.decode(httpmessagedecoder.java:102) ~[netty-3.10.4.final.jar:na]     @ org.jboss.netty.handler.codec.replay.replayingdecoder.calldecode(replayingdecoder.java:500) ~[netty-3.10.4.final.jar:na]     @ org.jboss.netty.handler.codec.replay.replayingdecoder.cleanup(replayingdecoder.java:554) ~[netty-3.10.4.final.jar:na]     @ org.jboss.netty.handler.codec.frame.framedecoder.channeldisconnected(framedecoder.java:365) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.simplechannelupstreamhandler.handleupstream(simplechannelupstreamhandler.java:102) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline.sendupstream(defaultchannelpipeline.java:564) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline.sendupstream(defaultchannelpipeline.java:559) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.channels.firechanneldisconnected(channels.java:396) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.socket.nio.abstractnioworker.close(abstractnioworker.java:360) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.socket.nio.nioserversocketpipelinesink.handleacceptedsocket(nioserversocketpipelinesink.java:81) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.socket.nio.nioserversocketpipelinesink.eventsunk(nioserversocketpipelinesink.java:36) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline$defaultchannelhandlercontext.senddownstream(defaultchannelpipeline.java:779) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.handler.codec.oneone.onetooneencoder.handledownstream(onetooneencoder.java:54) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline.senddownstream(defaultchannelpipeline.java:591) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline$defaultchannelhandlercontext.senddownstream(defaultchannelpipeline.java:784) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.simplechannelhandler.closerequested(simplechannelhandler.java:334) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.simplechannelhandler.handledownstream(simplechannelhandler.java:260) [netty-3.10.4.final.jar:na]     @ com.typesafe.netty.http.pipelining.httppipelininghandler.handledownstream(httppipelininghandler.java:106) [netty-http-pipelining-1.1.4.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline.senddownstream(defaultchannelpipeline.java:591) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline.senddownstream(defaultchannelpipeline.java:582) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.channels.close(channels.java:812) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.abstractchannel.close(abstractchannel.java:206) [netty-3.10.4.final.jar:na]     @ play.core.server.netty.playdefaultupstreamhandler.exceptioncaught(playdefaultupstreamhandler.scala:66) [play-netty-server_2.11-2.4.3.jar:2.4.3]     @ org.jboss.netty.channel.simplechannelupstreamhandler.handleupstream(simplechannelupstreamhandler.java:112) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline.sendupstream(defaultchannelpipeline.java:564) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline$defaultchannelhandlercontext.sendupstream(defaultchannelpipeline.java:791) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.simplechannelhandler.exceptioncaught(simplechannelhandler.java:156) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.simplechannelhandler.handleupstream(simplechannelhandler.java:130) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline.sendupstream(defaultchannelpipeline.java:564) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline$defaultchannelhandlercontext.sendupstream(defaultchannelpipeline.java:791) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.simplechannelupstreamhandler.exceptioncaught(simplechannelupstreamhandler.java:153) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.simplechannelupstreamhandler.handleupstream(simplechannelupstreamhandler.java:112) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline.sendupstream(defaultchannelpipeline.java:564) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline$defaultchannelhandlercontext.sendupstream(defaultchannelpipeline.java:791) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.handler.codec.frame.framedecoder.exceptioncaught(framedecoder.java:377) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.simplechannelupstreamhandler.handleupstream(simplechannelupstreamhandler.java:112) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline.sendupstream(defaultchannelpipeline.java:564) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline.sendupstream(defaultchannelpipeline.java:559) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.channels.fireexceptioncaught(channels.java:525) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.abstractchannelsink.exceptioncaught(abstractchannelsink.java:48) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline.notifyhandlerexception(defaultchannelpipeline.java:658) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline.sendupstream(defaultchannelpipeline.java:566) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.defaultchannelpipeline.sendupstream(defaultchannelpipeline.java:559) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.channels.firemessagereceived(channels.java:268) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.channels.firemessagereceived(channels.java:255) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.socket.nio.nioworker.read(nioworker.java:88) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.socket.nio.abstractnioworker.process(abstractnioworker.java:108) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.socket.nio.abstractnioselector.run(abstractnioselector.java:337) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.socket.nio.abstractnioworker.run(abstractnioworker.java:89) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.channel.socket.nio.nioworker.run(nioworker.java:178) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.util.threadrenamingrunnable.run(threadrenamingrunnable.java:108) [netty-3.10.4.final.jar:na]     @ org.jboss.netty.util.internal.deadlockproofworker$1.run(deadlockproofworker.java:42) [netty-3.10.4.final.jar:na]     @ java.util.concurrent.threadpoolexecutor.runworker(threadpoolexecutor.java:1142) [na:1.8.0_31]     @ java.util.concurrent.threadpoolexecutor$worker.run(threadpoolexecutor.java:617) [na:1.8.0_31]     @ java.lang.thread.run(thread.java:745) [na:1.8.0_31]


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