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java.lang.NullPointerException: null	at org.jooby.internal.jetty.JettyResponse.failed(JettyResponse.java:87)	at org.eclipse.jetty.util.IteratingNestedCallback.onCompleteFailure(IteratingNestedCallback.java:65)	at org.eclipse.jetty.server.HttpOutput$ReadableByteChannelWritingCB.onCompleteFailure(HttpOutput.java:1255)	at org.eclipse.jetty.util.IteratingCallback.failed(IteratingCallback.java:401)	at org.eclipse.jetty.io.AbstractConnection$1.run(AbstractConnection.java:115)	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671)	at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589)	at java.lang.Thread.run(Thread.java:745)