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https://issues.apache.org/activemq/browse/SM-1847?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=52056#action_52056
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Jean-Baptiste Onofré commented on SM-1847:
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I will create an inner class into ExcecutorImpl that implements Runnable. This
class will be responsible of exceptions catch and log.
> Executor service silently swallows any Errors being thrown from Runnable task
> -----------------------------------------------------------------------------
>
> Key: SM-1847
> URL: https://issues.apache.org/activemq/browse/SM-1847
> Project: ServiceMix
> Issue Type: Bug
> Components: servicemix-utils
> Affects Versions: 3.2.3, 3.3
> Reporter: Gert Vanthienen
> Assignee: Jean-Baptiste Onofré
>
> When an Error is thrown from within a Runnable submitted to the Executor
> service, the Error is silently ignored and there's even no log message for it.
> An example (i.e. the way I found out about this):
> If you write a custom FTP marshaler that used JAXB 2.1 and then run it on an
> early JDK 1.6 machine will give you a LinkageError. However, the Error is
> thrown from the marshaler operation in the processFile() method, but is never
> caught anywhere in the poller code (catches Exceptions but no Errors). In
> the end, the threadpool executor kills the thread but there's no trace of the
> Error
> I would suggest implementing a generic catch-log-and-rethrow-Throwable in the
> servicemix-utils ExecutorImpl to make sure we at least have some log entry to
> show the exceptions/errors
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