RemoteDelivery tries to modify the returned Collection of Mail.getRecipients()
directly
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Key: JAMES-1318
URL: https://issues.apache.org/jira/browse/JAMES-1318
Project: JAMES Server
Issue Type: Bug
Reporter: Norman Maurer
Priority: Critical
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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