Johan Tjernström created MAILBOX-350:
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Summary: Double added events from StoreMessageManager can cause
wrong sequence numbers
Key: MAILBOX-350
URL: https://issues.apache.org/jira/browse/MAILBOX-350
Project: James Mailbox
Issue Type: Bug
Components: store
Affects Versions: master, 3.1.0, 3.2.0
Environment: Tested on Linux with Maildir storage and James 3.1.0
Reporter: Johan Tjernström
When a COPY command is issued for a message two added events are dispatched
from StoreMessageManager
(mailbox/store/src/main/java/org/apache/james/mailbox/store/StoreMessageManager.java).
The first event (row 712) use the message UID from the source mailbox and the
second event (row 743) use a new UID from the target mailbox. If the source UID
is "available" in the target mailbox a new entry will be added to the target
mailbox UidMsnConverter which will mess up the sequence numbers.
In the example below two connection A and B are used. A selects the Inbox and B
selects the Trash mailbox. Inbox and Trash contains one message each.
{{* OK JAMES IMAP4rev1 Server Server imapsrv is ready.}}
{{A1 LOGIN "[email protected]" "1234"}}
{{A1 OK LOGIN completed.}}
{{A2 SELECT inbox}}
{{* FLAGS (\Answered \Deleted \Draft \Flagged \Seen)}}
{{* 1 EXISTS}}
{{* 0 RECENT}}
{{* OK [UIDVALIDITY 1892339292] UIDs valid}}
{{* OK [UNSEEN 1] MailboxMessage 1 is first unseen}}
{{* OK [PERMANENTFLAGS (\Answered \Deleted \Draft \Flagged \Seen)] Limited}}
{{* OK [HIGHESTMODSEQ 1538993301626] Highest}}
{{* OK [UIDNEXT 2] Predicted next UID}}
{{A2 OK [READ-WRITE] SELECT completed.}}
{{A3 FETCH 1:* (FLAGS)}}
{{* 1 FETCH (FLAGS ())}}
{{A3 OK FETCH completed.}}
{{* OK JAMES IMAP4rev1 Server Server imapsrv is ready.}}
{{B1 LOGIN "[email protected]" "1234"}}
{{B1 OK LOGIN completed.}}
{{B3 SELECT Trash}}
{{* FLAGS (\Answered \Deleted \Draft \Flagged \Seen)}}
{{* 1 EXISTS}}
{{* 1 RECENT}}
{{* OK [UIDVALIDITY 286991256] UIDs valid}}
{{* OK [UNSEEN 1] MailboxMessage 1 is first unseen}}
{{* OK [PERMANENTFLAGS (\Answered \Deleted \Draft \Flagged \Seen)] Limited}}
{{* OK [HIGHESTMODSEQ 1538993663429] Highest}}
{{* OK [UIDNEXT 3] Predicted next UID}}
{{B3 OK [READ-WRITE] SELECT completed.}}
Clear Trash
{{B4 STORE 1 +FLAGS (\Deleted)}}
{{* 1 FETCH (FLAGS (\Deleted \Recent))}}
{{B4 OK STORE completed.}}
{{B5 EXPUNGE}}
{{* 1 EXPUNGE}}
{{* 0 RECENT}}
{{B5 OK EXPUNGE completed.}}
{{B6 FETCH 1:* (FLAGS)}}
{{B6 BAD FETCH failed. Invalid messageset.}}
Copy message from Inbox to Trash
{{A4 COPY 1 Trash}}
{{A4 OK [COPYUID 286991256 1 3] COPY completed.}}
Check messages in Trash
{{B7 FETCH 1:* (FLAGS)}}
{{* 2 FETCH (FLAGS (\Recent))}}
{{* 2 EXISTS}} <-- SHOULD ONLY BE ONE!
{{* 2 RECENT}}
{{B7 OK FETCH completed.}}
Removing the first event seems to fix the problem.
(BTW: Is it correct to allow reuse of UIDs in UidMsnConverter?)
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