java.lang.IllegalStateException: s=ASYNCIO i=false a=COMPLETE
at org.eclipse.jetty.server.HttpChannelState.complete(HttpChannelState.java:430)
at org.eclipse.jetty.server.AsyncContextState.complete(AsyncContextState.java:92)
at com.mycompany.StandardDataStream.onWritePossible(StandardDataStream.java:52)
at org.eclipse.jetty.server.HttpOutput.run(HttpOutput.java:673)
at org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1159)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:334)
at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:238)
at org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1159)
at org.eclipse.jetty.server.HttpChannelState.complete(HttpChannelState.java:440)
at org.eclipse.jetty.server.AsyncContextState.complete(AsyncContextState.java:92)
at com.mycompany.ClientAsyncRequestProcessor.run(ClientAsyncRequestProcessor.java:112)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)