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java.nio.channels.ClosedSelectorException at sun.nio.ch.SelectorImpl.keys(SelectorImpl.java:68)[?:1.8.0_91] at org.eclipse.jetty.io.ManagedSelector.size(ManagedSelector.java:104)[jetty-io-9.3.9.v20160517.jar:9.3.9.v20160517] at org.eclipse.jetty.io.SelectorManager.chooseSelector(SelectorManager.java:190)[jetty-io-9.3.9.v20160517.jar:9.3.9.v20160517] at org.eclipse.jetty.io.SelectorManager.accept(SelectorManager.java:232)[jetty-io-9.3.9.v20160517.jar:9.3.9.v20160517] at org.eclipse.jetty.io.SelectorManager.accept(SelectorManager.java:217)[jetty-io-9.3.9.v20160517.jar:9.3.9.v20160517] at org.eclipse.jetty.server.ServerConnector.accepted(ServerConnector.java:383)[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517] at org.eclipse.jetty.server.ServerConnector.accept(ServerConnector.java:374)[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517] at org.eclipse.jetty.server.AbstractConnector$Acceptor.run(AbstractConnector.java:593)[jetty-server-9.3.9.v20160517.jar:9.3.9.v20160517] at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)[jetty-util-9.3.9.v20160517.jar:9.3.9.v20160517] at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)[jetty-util-9.3.9.v20160517.jar:9.3.9.v20160517] at java.lang.Thread.run(Thread.java:745)[?:1.8.0_91]