tmct opened a new pull request, #222:
URL: https://github.com/apache/logging-log4net/pull/222
Hello,
We have been witnessing this error now and again while using log4net 2.0.15:
```
Collection was modified; enumeration operation may not execute.
at log4net.Appender.AppenderCollection.Enumerator.MoveNext()
at log4net.Util.AppenderAttachedImpl.RemoveAllAppenders()
at log4net.Repository.Hierarchy.Logger.RemoveAllAppenders()
at log4net.Repository.Hierarchy.Hierarchy.Shutdown()
at log4net.Core.LoggerManager.Shutdown()
at log4net.LogManager.Shutdown()
```
It looks like the code on master is still susceptible to this, what do you
think of this change? (The try-catch should be wel-equipped to handle appenders
that have left the List, so long as we can still access their name for the
error message...)
Thanks,
Tom
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