Complaint-Studio Pro 9.12.1 Native-More Java errors that are not simplified/summarized

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Console Log that means nothing.  Problem Cause? Resolution?  The following might as well be an IBM MCH0000 Machine Check, CPF0000 , CPF9999 Function Check,   An error has occurred while handling the request.  org.eclipse.jetty.io.EofException: null     at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:279)     at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:422)     at org.eclipse.jetty.io.WriteFlusher.completeWrite(WriteFlusher.java:378)     at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:119)     at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338)     at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:300)     at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173)     at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)     at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:409)     at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883)     at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034)     at java.base/java.lang.Thread.run(Thread.java:834) Caused by: java.io.IOException: An existing connection was forcibly closed by the remote host     at java.base/sun.nio.ch.SocketDispatcher.writev0(Native Method)     at java.base/sun.nio.ch.SocketDispatcher.writev(SocketDispatcher.java:55)     at java.base/sun.nio.ch.IOUtil.write(IOUtil.java:182)     at java.base/sun.nio.ch.IOUtil.write(IOUtil.java:130)     at java.base/sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:496)     at java.base/java.nio.channels.SocketChannel.write(SocketChannel.java:507)     at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:273)     at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:422)     at org.eclipse.jetty.io.WriteFlusher.completeWrite(WriteFlusher.java:378)     at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:119)     at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338)     at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:300)     at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173)     at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)     at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:409)     at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883)     at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034)     at java.base/java.lang.Thread.run(Thread.java:834) ---------------------------------------------------------------------------------------------------------------------- com.mendix.systemwideinterfaces.MendixRuntimeException: org.eclipse.jetty.io.EofException: Closed     at com.mendix.util.classloading.Runner$.withContextClassLoader(Runner.scala:23) Caused by: org.eclipse.jetty.io.EofException: Closed     at org.eclipse.jetty.server.HttpOutput.checkWritable(HttpOutput.java:771)     at org.eclipse.jetty.server.HttpOutput.write(HttpOutput.java:795)     at java.base/sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:233)     at java.base/sun.nio.cs.StreamEncoder.implClose(StreamEncoder.java:337)     at java.base/sun.nio.cs.StreamEncoder.close(StreamEncoder.java:161)     at java.base/java.io.OutputStreamWriter.close(OutputStreamWriter.java:258)     at com.fasterxml.jackson.core.json.WriterBasedJsonGenerator.close(WriterBasedJsonGenerator.java:1004)     at com.mendix.webui.jsonserialization.JsonGeneratorWrapper.$anonfun$close$1(JsonGeneratorWrapper.scala:25)     at com.mendix.webui.jsonserialization.JsonGeneratorWrapper.$anonfun$close$1$adapted(JsonGeneratorWrapper.scala:25)     at scala.collection.IterableOnceOps.foreach(IterableOnce.scala:563)     at scala.collection.IterableOnceOps.foreach$(IterableOnce.scala:561)     at scala.collection.AbstractIterable.foreach(Iterable.scala:926)     at com.mendix.webui.jsonserialization.JsonGeneratorWrapper.close(JsonGeneratorWrapper.scala:25)     at com.mendix.webui.jsonserialization.ResultSerializer.close(ResultSerializer.scala:21)     at com.mendix.webui.requesthandling.ClientRequestHandler.processRequest(ClientRequestHandler.scala:80)     at com.mendix.externalinterface.connector.RequestHandler.doProcessRequest(RequestHandler.java:37)     at com.mendix.external.connector.MxRuntimeConnector.$anonfun$processRequest$1(MxRuntimeConnector.scala:50)     at com.mendix.external.connector.MxRuntimeConnector.$anonfun$processRequest$1$adapted(MxRuntimeConnector.scala:50)     at com.mendix.util.classloading.Runner$.withContextClassLoader(Runner.scala:20)     at com.mendix.external.connector.MxRuntimeConnector.processRequest(MxRuntimeConnector.scala:50)     at com.mendix.basis.impl.MxRuntimeImpl.processRequest(MxRuntimeImpl.scala:223)     at com.mendix.m2ee.appcontainer.server.handler.RuntimeServlet.service(RuntimeServlet.scala:25)     at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)     at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799)     at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1631)     at org.eclipse.jetty.websocket.server.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:230)     at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)     at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1601)     at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:548)     at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)     at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624)     at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)     at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1440)     at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)     at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:501)     at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594)     at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)     at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1355)     at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)     at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)     at org.eclipse.jetty.server.Server.handle(Server.java:516)     at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:487)     at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:732)     at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:479)     at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277)     at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)     at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)     at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)     at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338)     at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315)     at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173)     at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)     at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:409)     at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883)     at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034)     at java.base/java.lang.Thread.run(Thread.java:834)  
asked
1 answers
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> Also who the ...insert words... names software components “EatWhatYouKill”?

The Jetty project, developed under the umbrella of the Eclipse Foundation. It’s an apt, albeit very poetic name for an HTTP/2 execution strategy.

The log explains what happened very clearly:

> org.eclipse.jetty.io.EofException: null

> at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:279)
    at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:422)

→ Writing to a socket failed.

> Caused by: java.io.IOException: An existing connection was forcibly closed by the remote host

→ Because the remote end (i.e. your client application) closed the connection.

 

 

answered