Details
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Bug
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Resolution: Done
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Major
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1.4.2.Final
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None
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None
Description
Continuing on from UNDERTOW-776, I think I've narrowed down the race condition that is triggering this.
09:33:01,420 [XNIO-1 I/O-7] ERROR io.undertow.request - UT005071: Undertow request failed HttpServerExchange{ POST /foo request {Connection=[Keep-Alive], Content-Length=[25817], Content-Type=[application/x-www-form-urlencoded; charset=UTF-8], User-Agent=[Apache-HttpAsyncClient/4.0.2 (java 1.5)], Host=[my-host:80]} response {}}
java.lang.IllegalStateException: UT000146: HttpServerExchange cannot have both async IO resumed and dispatch() called in the same cycle
at io.undertow.server.HttpServerExchange.dispatch(HttpServerExchange.java:783)
at io.undertow.server.HttpServerExchange.dispatch(HttpServerExchange.java:761)
at MyCode.handleRequest
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:207)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:805)
at io.undertow.util.SameThreadExecutor.execute(SameThreadExecutor.java:35)
at io.undertow.server.HttpServerExchange.dispatch(HttpServerExchange.java:790)
at io.undertow.server.HttpServerExchange.dispatch(HttpServerExchange.java:808)
at io.undertow.server.handlers.form.FormEncodedDataDefinition$FormEncodedDataParser.handleEvent(FormEncodedDataDefinition.java:117)
at io.undertow.server.handlers.form.FormEncodedDataDefinition$FormEncodedDataParser.handleEvent(FormEncodedDataDefinition.java:90)
at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
at io.undertow.channels.DetachableStreamSourceChannel$SetterDelegatingListener.handleEvent(DetachableStreamSourceChannel.java:231)
at io.undertow.channels.DetachableStreamSourceChannel$SetterDelegatingListener.handleEvent(DetachableStreamSourceChannel.java:218)
at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66)
at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:88)
at org.xnio.nio.NioHandle$1.run(NioHandle.java:50)
at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:580)
at org.xnio.nio.WorkerThread.run(WorkerThread.java:464)
09:33:01,420 [XNIO-1 task-4] ERROR io.undertow.request - UT005080: HttpServerExchange cannot have both async IO resumed and dispatch() called in the same cycle
It smells as if there is a race condition in resuming the reads on a channel and clearing the flag that says that it has been dispatched.
