[slf4j-dev] [Bug 224] BasicMDCAdapter.getCopyOfContextMap can lead to ConcurrentModificationException

[bugzilla-daemon at pixie.qos.ch]

http://bugzilla.slf4j.org/show_bug.cgi?id=224

art.home at gmail.com changed:

           What    |Removed                     |Added
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                 CC|                            |art.home at gmail.com

--- Comment #1 from art.home at gmail.com 2011-07-07 17:40:37 CEST ---
I have also experienced this, here's the [very similar] stack trace:

java.util.ConcurrentModificationException
    at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
    at java.util.HashMap$EntryIterator.next(Unknown Source)
    at java.util.HashMap$EntryIterator.next(Unknown Source)
    at java.util.HashMap.putAllForCreate(Unknown Source)
    at java.util.HashMap.<init>(Unknown Source)
    at
org.slf4j.helpers.BasicMDCAdapter.getCopyOfContextMap(BasicMDCAdapter.java:130)
    at org.slf4j.MDC.getCopyOfContextMap(MDC.java:182)
    at
org.apache.activemq.util.MDCHelper.getCopyOfContextMap(MDCHelper.java:30)
    at
org.apache.activemq.broker.TransportConnection.stopAsync(TransportConnection.java:946)
    at
org.apache.activemq.broker.TransportConnection.processShutdown(TransportConnection.java:353)
    at org.apache.activemq.command.ShutdownInfo.visit(ShutdownInfo.java:35)
    at
org.apache.activemq.broker.TransportConnection.service(TransportConnection.java:306)
    at
org.apache.activemq.broker.TransportConnection$1.onCommand(TransportConnection.java:179)
    at
org.apache.activemq.transport.ResponseCorrelator.onCommand(ResponseCorrelator.java:116)
    at
org.apache.activemq.transport.TransportFilter.onCommand(TransportFilter.java:69)
    at
org.apache.activemq.transport.vm.VMTransport.iterate(VMTransport.java:218)
    at
org.apache.activemq.thread.PooledTaskRunner.runTask(PooledTaskRunner.java:127)
    at
org.apache.activemq.thread.PooledTaskRunner$1.run(PooledTaskRunner.java:48)
    at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

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