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https://issues.apache.org/jira/browse/SYNAPSE-205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12555942#action_12555942
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Asankha C. Perera commented on SYNAPSE-205:
-------------------------------------------
Andreas
After I fixed 168 and 188 I don't think I can reproduce this.. Could you share
any configuration that will help me re-create this? or can you check if this
works as expected with the latest SVN?
thanks
asankha
> NPE in HttpCoreNIOSender and "I/O reactor has been shut down"
> -------------------------------------------------------------
>
> Key: SYNAPSE-205
> URL: https://issues.apache.org/jira/browse/SYNAPSE-205
> Project: Synapse
> Issue Type: Bug
> Components: Transports
> Affects Versions: NIGHTLY
> Reporter: Andreas Veithen
> Priority: Critical
>
> When the target service is not available, a request to the proxy service
> causes the following exception:
> Exception in thread "HttpCoreNIOSender" java.lang.NullPointerException
> at
> org.apache.synapse.transport.nhttp.HttpCoreNIOSender$3.handleError(HttpCoreNIOSender.java:460)
> at
> org.apache.synapse.transport.nhttp.HttpCoreNIOSender$3.timeout(HttpCoreNIOSender.java:439)
> at
> org.apache.http.impl.nio.reactor.SessionRequestImpl.timeout(SessionRequestImpl.java:151)
> at
> org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processTimeouts(DefaultConnectingIOReactor.java:152)
> at
> org.apache.http.impl.nio.reactor.DefaultConnectingIOReactor.processEvents(DefaultConnectingIOReactor.java:96)
> at
> org.apache.http.impl.nio.reactor.AbstractMultiworkerIOReactor.execute(AbstractMultiworkerIOReactor.java:158)
> at
> org.apache.synapse.transport.nhttp.HttpCoreNIOSender.executeClientEngine(HttpCoreNIOSender.java:139)
> at
> org.apache.synapse.transport.nhttp.HttpCoreNIOSender.access$000(HttpCoreNIOSender.java:68)
> at
> org.apache.synapse.transport.nhttp.HttpCoreNIOSender$1.run(HttpCoreNIOSender.java:101)
> at java.lang.Thread.run(Thread.java:613)
> Any further request then fails with "java.lang.IllegalStateException: I/O
> reactor has been shut down".
> The instruction in HttpCoreNIOSender that causes the NPE is as follows:
> MessageContext nioFaultMessageContext =
> MessageContextBuilder.createFaultMessageContext(
> mc, new AxisFault(exception.toString(), exception));
> Probably, when handleError is called by the timeout (rather than the failed)
> method, as is the case here (see stacktrace), exception is null. The
> handleError method doesn't handle this situation appropriately.
> Note that this issue is similar but not identical to the one described in
> SYNAPSE-168.
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