ERROR ninja.NinjaDefault - Unable to handle result. That's really really fishy.

[AllExample]

11:39:30.119 [qtp1938056729-14] ERROR ninja.NinjaDefault - Unable to handle result. That's really really fishy.
org.eclipse.jetty.io.RuntimeIOException: org.eclipse.jetty.io.EofException
at org.eclipse.jetty.server.ResponseWriter.isOpen(ResponseWriter.java:133) ~[jetty-server-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.server.ResponseWriter.flush(ResponseWriter.java:146) ~[jetty-server-9.3.11.v20160721.jar:9.3.11.v20160721]
at ninja.diagnostics.DiagnosticErrorRenderer.renderResult(DiagnosticErrorRenderer.java:92) ~[ninja-core-6.0.0-rc1.jar:na]
at ninja.diagnostics.DiagnosticErrorRenderer.tryToRender(DiagnosticErrorRenderer.java:67) ~[ninja-core-6.0.0-rc1.jar:na]
at ninja.diagnostics.DiagnosticError.render(DiagnosticError.java:99) ~[ninja-core-6.0.0-rc1.jar:na]
at ninja.utils.ResultHandler.handleRenderable(ResultHandler.java:87) ~[ninja-core-6.0.0-rc1.jar:na]
at ninja.utils.ResultHandler.handleResult(ResultHandler.java:60) ~[ninja-core-6.0.0-rc1.jar:na]
at ninja.NinjaDefault.renderErrorResultAndCatchAndLogExceptions(NinjaDefault.java:136) [ninja-core-6.0.0-rc1.jar:na]
at ninja.NinjaDefault.onRouteRequest(NinjaDefault.java:122) [ninja-core-6.0.0-rc1.jar:na]
at ninja.servlet.NinjaServletDispatcher.service(NinjaServletDispatcher.java:86) [ninja-servlet-6.0.0-rc1.jar:na]
at com.google.inject.servlet.ServletDefinition.doServiceImpl(ServletDefinition.java:286) [guice-servlet-4.1.0.jar:na]
at com.google.inject.servlet.ServletDefinition.doService(ServletDefinition.java:276) [guice-servlet-4.1.0.jar:na]
at com.google.inject.servlet.ServletDefinition.service(ServletDefinition.java:181) [guice-servlet-4.1.0.jar:na]
at com.google.inject.servlet.ManagedServletPipeline.service(ManagedServletPipeline.java:91) [guice-servlet-4.1.0.jar:na]
at com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:85) [guice-servlet-4.1.0.jar:na]
at com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:120) [guice-servlet-4.1.0.jar:na]
at com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:135) [guice-servlet-4.1.0.jar:na]
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1676) [jetty-servlet-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581) [jetty-servlet-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1180) [jetty-server-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511) [jetty-servlet-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) [jetty-server-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) [jetty-server-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) [jetty-server-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.server.Server.handle(Server.java:524) [jetty-server-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:319) [jetty-server-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:253) [jetty-server-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273) [jetty-io-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95) [jetty-io-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) [jetty-io-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303) [jetty-util-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148) [jetty-util-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136) [jetty-util-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671) [jetty-util-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) [jetty-util-9.3.11.v20160721.jar:9.3.11.v20160721]
at java.lang.Thread.run(Unknown Source) [na:1.8.0_40]
Caused by: org.eclipse.jetty.io.EofException: null
at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:197) ~[jetty-io-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:420) ~[jetty-io-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.io.WriteFlusher.completeWrite(WriteFlusher.java:375) ~[jetty-io-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.io.SelectChannelEndPoint$3.run(SelectChannelEndPoint.java:107) ~[jetty-io-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.io.SelectChannelEndPoint.onSelected(SelectChannelEndPoint.java:193) ~[jetty-io-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.processSelected(ManagedSelector.java:283) ~[jetty-io-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.io.ManagedSelector$SelectorProducer.produce(ManagedSelector.java:181) ~[jetty-io-9.3.11.v20160721.jar:9.3.11.v20160721]
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:249) [jetty-util-9.3.11.v20160721.jar:9.3.11.v20160721]
... 5 common frames omitted
Caused by: java.io.IOException: ▒▒▒▒▒▒▒▒▒е▒▒▒▒▒▒ֹ▒▒һ▒▒▒ѽ▒▒▒▒▒▒▒▒ӡ▒
at sun.nio.ch.SocketDispatcher.writev0(Native Method) ~[na:1.8.0_40]
at sun.nio.ch.SocketDispatcher.writev(Unknown Source) ~[na:1.8.0_40]
at sun.nio.ch.IOUtil.write(Unknown Source) ~[na:1.8.0_40]
at sun.nio.ch.SocketChannelImpl.write(Unknown Source) ~[na:1.8.0_40]
at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:177) ~[jetty-io-9.3.11.v20160721.jar:9.3.11.v20160721]
... 12 common frames omitted