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From Oleg Kalnichevski <ol...@apache.org>
Subject Re: ConcurrentModificationException thrown by DefaultConnectingIOReactor.processTimeouts()
Date Thu, 25 Jan 2007 08:49:02 GMT
Asankha C. Perera wrote:
> Hi
>
> I am seeing a ConcurrentModificationException thrown by 
> DefaultConnectingIOReactor.processTimeouts() when a load test is being 
> performed. The Javadocs for the Selector.keys() states that the 
> returned Set is not directly modifiable, but a key is removed only 
> after it has been cancelled and its channel deregistered. I have 
> started the DefaultConnectingIOReactor with two worker nodes.. does 
> this sound like a bug to open a JIRA?
>
> thanks
> asankha
>
Hi Asankha

This is obviously a bug. Please open a Jira ticket for it and I will try 
to come up with a fix tonight

Oleg


> Exception in thread "HttpCoreNIOSender" 
> java.util.ConcurrentModificationException
>        at java.util.HashMap$HashIterator.nextEntry(HashMap.java:841)
>        at java.util.HashMap$KeyIterator.next(HashMap.java:877)
>        at 
> java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1010) 
>
>        at 
> org.apache.http.nio.impl.reactor.DefaultConnectingIOReactor.processTimeouts(DefaultConnectingIOReactor.java:151)

>
>        at 
> org.apache.http.nio.impl.reactor.DefaultConnectingIOReactor.execute(DefaultConnectingIOReactor.java:92)

>
>        at 
> org.apache.axis2.transport.nhttp.HttpCoreNIOSender.executeClientEngine(HttpCoreNIOSender.java:103)

>
>        at 
> org.apache.axis2.transport.nhttp.HttpCoreNIOSender.access$000(HttpCoreNIOSender.java:57)

>
>        at 
> org.apache.axis2.transport.nhttp.HttpCoreNIOSender$1.run(HttpCoreNIOSender.java:80) 
>
>        at java.lang.Thread.run(Thread.java:595)
>
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