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https://issues.apache.org/jira/browse/JAMES-1318?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Norman Maurer updated JAMES-1318:
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Component/s: Matchers/Mailets (bundled)
Affects Version/s: 3.0-beta3
Fix Version/s: 3.0-beta4
Assignee: Norman Maurer
> RemoteDelivery tries to modify the returned Collection of
> Mail.getRecipients() directly
> ---------------------------------------------------------------------------------------
>
> Key: JAMES-1318
> URL: https://issues.apache.org/jira/browse/JAMES-1318
> Project: JAMES Server
> Issue Type: Bug
> Components: Matchers/Mailets (bundled)
> Affects Versions: 3.0-beta3
> Reporter: Norman Maurer
> Assignee: Norman Maurer
> Priority: Critical
> Fix For: 3.0-beta4
>
>
> In RemoteDelivery we try to modify the returned Collection of
> Mail.getRecipients() directly. This may fail because a Collection can be
> read-only as remove etc is an optional implementation. We need to copy it and
> then set it via Mail.setRecipients(..) to be 100% sure.
> See this related stack trace:
> INFO 17:41:25,409 | james.mailetcontext | Exception caught in
> RemoteDelivery.run()
> org.apache.james.queue.api.MailQueue$MailQueueException: Unable to perform
> dequeue;
> nested exception is:
> java.lang.UnsupportedOperationException
> at
> org.apache.james.transport.mailets.RemoteDelivery.run(RemoteDelivery.java:768)
> at java.lang.Thread.run(Thread.java:679)
> Caused by: java.lang.UnsupportedOperationException
> at java.util.AbstractList.remove(AbstractList.java:161)
> at java.util.AbstractList$Itr.remove(AbstractList.java:375)
> at java.util.AbstractList.removeRange(AbstractList.java:572)
> at java.util.AbstractList.clear(AbstractList.java:234)
> at
> org.apache.james.transport.mailets.RemoteDelivery.deliver(RemoteDelivery.java:1132)
> at
> org.apache.james.transport.mailets.RemoteDelivery.run(RemoteDelivery.java:718)
> ... 1 more
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