Sep 25, 2017 5:56:41 PM org.zkoss.zkmax.au.websocket.WebSocketEndPoint onError
WARNING: SERVER ERROR
java.io.IOException: java.io.IOException: An established connection was aborted by the software in your host machine
	at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendMessageBlock(WsRemoteEndpointImplBase.java:315)
	at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendMessageBlock(WsRemoteEndpointImplBase.java:258)
	at org.apache.tomcat.websocket.WsSession.sendCloseMessage(WsSession.java:592)
	at org.apache.tomcat.websocket.WsSession.onClose(WsSession.java:512)
	at org.apache.tomcat.websocket.WsFrameBase.processDataControl(WsFrameBase.java:347)
	at org.apache.tomcat.websocket.WsFrameBase.processData(WsFrameBase.java:289)
	at org.apache.tomcat.websocket.WsFrameBase.processInputBuffer(WsFrameBase.java:133)
	at org.apache.tomcat.websocket.server.WsFrameServer.onDataAvailable(WsFrameServer.java:82)
	at org.apache.tomcat.websocket.server.WsFrameServer.doOnDataAvailable(WsFrameServer.java:171)
	at org.apache.tomcat.websocket.server.WsFrameServer.notifyDataAvailable(WsFrameServer.java:151)
	at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler.upgradeDispatch(WsHttpUpgradeHandler.java:148)
	at org.apache.coyote.http11.upgrade.UpgradeProcessorInternal.dispatch(UpgradeProcessorInternal.java:54)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:53)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1457)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: An established connection was aborted by the software in your host machine
	at sun.nio.ch.SocketDispatcher.write0(Native Method)
	at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:51)
	at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
	at sun.nio.ch.IOUtil.write(IOUtil.java:65)
	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471)
	at org.apache.tomcat.util.net.NioChannel.write(NioChannel.java:134)
	at org.apache.tomcat.util.net.NioBlockingSelector.write(NioBlockingSelector.java:101)
	at org.apache.tomcat.util.net.NioSelectorPool.write(NioSelectorPool.java:157)
	at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.doWrite(NioEndpoint.java:1261)
	at org.apache.tomcat.util.net.SocketWrapperBase.doWrite(SocketWrapperBase.java:670)
	at org.apache.tomcat.util.net.SocketWrapperBase.flushBlocking(SocketWrapperBase.java:607)
	at org.apache.tomcat.util.net.SocketWrapperBase.flush(SocketWrapperBase.java:597)
	at org.apache.tomcat.websocket.server.WsRemoteEndpointImplServer.doWrite(WsRemoteEndpointImplServer.java:95)
	at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.writeMessagePart(WsRemoteEndpointImplBase.java:494)
	at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendMessageBlock(WsRemoteEndpointImplBase.java:309)
	... 19 more

Sep 25, 2017 5:56:41 PM org.apache.coyote.AbstractProtocol$ConnectionHandler process
SEVERE: Error reading request, ignored
java.lang.NullPointerException: Deflater has been closed
	at java.util.zip.Deflater.ensureOpen(Deflater.java:559)
	at java.util.zip.Deflater.deflate(Deflater.java:440)
	at org.apache.tomcat.websocket.PerMessageDeflate.sendMessagePart(PerMessageDeflate.java:345)
	at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendMessageBlock(WsRemoteEndpointImplBase.java:284)
	at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendMessageBlock(WsRemoteEndpointImplBase.java:250)
	at org.apache.tomcat.websocket.WsRemoteEndpointImplBase.sendString(WsRemoteEndpointImplBase.java:191)
	at org.apache.tomcat.websocket.WsRemoteEndpointBasic.sendText(WsRemoteEndpointBasic.java:37)
	at org.zkoss.zkmax.au.websocket.WebSocketEndPoint.sendText(WebSocketEndPoint.java:284)
	at org.zkoss.zkmax.au.websocket.WSAuWriter.close(WSAuWriter.java:57)
	at org.zkoss.zkmax.au.websocket.WebSocketEndPoint.onError(WebSocketEndPoint.java:133)
	at org.apache.tomcat.websocket.WsSession.sendCloseMessage(WsSession.java:605)
	at org.apache.tomcat.websocket.WsSession.onClose(WsSession.java:512)
	at org.apache.tomcat.websocket.WsFrameBase.processDataControl(WsFrameBase.java:347)
	at org.apache.tomcat.websocket.WsFrameBase.processData(WsFrameBase.java:289)
	at org.apache.tomcat.websocket.WsFrameBase.processInputBuffer(WsFrameBase.java:133)
	at org.apache.tomcat.websocket.server.WsFrameServer.onDataAvailable(WsFrameServer.java:82)
	at org.apache.tomcat.websocket.server.WsFrameServer.doOnDataAvailable(WsFrameServer.java:171)
	at org.apache.tomcat.websocket.server.WsFrameServer.notifyDataAvailable(WsFrameServer.java:151)
	at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler.upgradeDispatch(WsHttpUpgradeHandler.java:148)
	at org.apache.coyote.http11.upgrade.UpgradeProcessorInternal.dispatch(UpgradeProcessorInternal.java:54)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:53)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1457)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.lang.Thread.run(Thread.java:748)