Resteasy SSE `java.io.IOException: Broken pipe` message on EAP 7 log

Solution Verified - Updated

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP)
    • 7.2.6

Issue

IOException when SSE client has been terminated.

15:55:51,024 ERROR [org.jboss.resteasy.resteasy_jaxrs.i18n] (ForkJoinPool.commonPool-worker-19) RESTEASY002030: Failed to write event org.jboss.resteasy.plugins.providers.sse.OutboundSseEventImpl@28732c7e: java.io.IOException: Broken pipe
	at java.base/sun.nio.ch.FileDispatcherImpl.writev0(Native Method)
	at java.base/sun.nio.ch.SocketDispatcher.writev(SocketDispatcher.java:51)
	at java.base/sun.nio.ch.IOUtil.write(IOUtil.java:182)
	at java.base/sun.nio.ch.IOUtil.write(IOUtil.java:130)
	at java.base/sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:496)
	at org.jboss.xnio.nio@3.7.6.SP2-redhat-00001//org.xnio.nio.NioSocketConduit.write(NioSocketConduit.java:162)
	at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.server.protocol.http.HttpResponseConduit.write(HttpResponseConduit.java:647)
	at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.conduits.ChunkedStreamSinkConduit.doWrite(ChunkedStreamSinkConduit.java:166)
	at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.conduits.ChunkedStreamSinkConduit.write(ChunkedStreamSinkConduit.java:128)
	at org.jboss.xnio@3.7.6.SP2-redhat-00001//org.xnio.conduits.ConduitStreamSinkChannel.write(ConduitStreamSinkChannel.java:150)
	at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.channels.DetachableStreamSinkChannel.write(DetachableStreamSinkChannel.java:240)
	at io.undertow.core@2.0.28.SP1-redhat-00001//io.undertow.server.HttpServerExchange$WriteDispatchChannel.write(HttpServerExchange.java:2105)
	at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.spec.ServletOutputStreamImpl.writeBufferBlocking(ServletOutputStreamImpl.java:574)
	at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.spec.ServletOutputStreamImpl.flushInternal(ServletOutputStreamImpl.java:489)
	at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.spec.ServletOutputStreamImpl.flush(ServletOutputStreamImpl.java:476)
	at io.undertow.servlet@2.0.28.SP1-redhat-00001//io.undertow.servlet.spec.HttpServletResponseImpl.flushBuffer(HttpServletResponseImpl.java:516)
	at org.jboss.resteasy.resteasy-jaxrs@3.6.1.SP7-redhat-00001//org.jboss.resteasy.plugins.server.servlet.HttpServletResponseWrapper.flushBuffer(HttpServletResponseWrapper.java:124)
	at org.jboss.resteasy.resteasy-jaxrs@3.6.1.SP7-redhat-00001//org.jboss.resteasy.plugins.providers.sse.SseEventOutputImpl.writeEvent(SseEventOutputImpl.java:264)
	at org.jboss.resteasy.resteasy-jaxrs@3.6.1.SP7-redhat-00001//org.jboss.resteasy.plugins.providers.sse.SseEventOutputImpl.send(SseEventOutputImpl.java:199)
	at org.jboss.resteasy.resteasy-jaxrs@3.6.1.SP7-redhat-00001//org.jboss.resteasy.plugins.providers.sse.SseBroadcasterImpl.lambda$null$4(SseBroadcasterImpl.java:150)
	at java.base/java.util.concurrent.ConcurrentLinkedQueue.forEachFrom(ConcurrentLinkedQueue.java:1037)
	at java.base/java.util.concurrent.ConcurrentLinkedQueue.forEach(ConcurrentLinkedQueue.java:1054)
	at org.jboss.resteasy.resteasy-jaxrs@3.6.1.SP7-redhat-00001//org.jboss.resteasy.plugins.providers.sse.SseBroadcasterImpl.lambda$broadcast$5(SseBroadcasterImpl.java:146)
	at java.base/java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1736)
	at java.base/java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1728)
	at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:290)
	at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1020)
	at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1656)
	at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1594)
	at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:177)

Resolution

This a known bug, which will be tentatively fixed at 7.2 cumulative patch 8, as per This content is not included.JBEAP-18613.

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