JPAStreamingMessage vs JPAMessage
---------------------------------
Key: IMAP-133
URL: https://issues.apache.org/jira/browse/IMAP-133
Project: JAMES Imap
Issue Type: Bug
Components: JPA Mailbox
Reporter: Tim-Christian Mundt
Priority: Blocker
With newest James I quite often (as always not always) get this error during
copy operations which causes them to fail:
Exception in thread "pool-8-thread-1" java.lang.ClassCastException:
org.apache.james.imap.jpa.mail.model.openjpa.JPAStreamingMessage cannot
be cast to org.apache.james.imap.jpa.mail.model.JPAMessage
at
org.apache.james.imap.jpa.mail.model.JPAMailboxMembership.<init>(JPAMailboxMembership.java:64)
at org.apache.james.imap.jpa.JPAMailbox.copyMessage(JPAMailbox.java:99)
at
org.apache.james.imap.jpa.openjpa.OpenJPAMailbox.copyMessage(OpenJPAMailbox.java:83)
at org.apache.james.imap.store.StoreMailbox$5.run(StoreMailbox.java:611)
at
org.apache.james.imap.store.transaction.AbstractTransactionalMapper.execute(AbstractTransactionalMapper.java:38)
at org.apache.james.imap.store.StoreMailbox.copy(StoreMailbox.java:603)
at
org.apache.james.imap.store.StoreMailbox.copyTo(StoreMailbox.java:637)
at
org.apache.james.imap.store.StoreMailboxManager.copyMessages(StoreMailboxManager.java:296)
at
org.apache.james.imap.processor.CopyProcessor.doProcess(CopyProcessor.java:82)
at
org.apache.james.imap.processor.AbstractMailboxProcessor.doProcess(AbstractMailboxProcessor.java:125)
at
org.apache.james.imap.processor.AbstractMailboxProcessor.process(AbstractMailboxProcessor.java:80)
at
org.apache.james.imap.processor.AbstractMailboxProcessor.doProcess(AbstractMailboxProcessor.java:73)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:44)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:46)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:46)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:46)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:46)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:46)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:46)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:46)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:46)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:46)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:46)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:46)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:46)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:46)
at
org.apache.james.imap.processor.base.AbstractChainedProcessor.process(AbstractChainedProcessor.java:46)
at
org.apache.james.imap.main.AbstractImapRequestHandler.doProcessRequest(AbstractImapRequestHandler.java:65)
at
org.apache.james.imap.main.ImapRequestStreamHandler.handleRequest(ImapRequestStreamHandler.java:82)
at
org.apache.james.imapserver.netty.ImapStreamChannelUpstreamHandler.processStreamIo(ImapStreamChannelUpstreamHandler.java:64)
at
org.jboss.netty.handler.stream.StreamHandler$1.run(StreamHandler.java:127)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown
Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
streaming is set to false. I found the place where the JPAStreamingMessage is
created:
633 final MessageMapper<Id> mapper = createMessageMapper(session);
634
635 final List<MailboxMembership<Id>> originalRows = mapper.findInMailbox(set);
in org.apache.james.imap.store.StoreMailbox. Those "originalRows" contain the
JPAStreamingMessage(s). The question here is: How does the mapper know, which
kind of Message to create - JPAStreamingMessage or JPAMessage? By the way, the
former is defined twice in persistence.xml. First I thought, this might be the
cause for the error, but really sometimes it gets the one type and after
restarting James it maybe gets the other (but always the same type during one
run).
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