MessagingException: Failed to load IMAP envelope - trying to read subject

Question

While trying to getSubject() on an IMAP message from Google, I am getting a MessagingException. The trace clearly shows that the client is already in possession of the subject of the message.. so why does IMAPMessage.getSubject() call into IMAPMessage.loadEnvelope() ? Am I missing something?
thanks in advance
asankha (Apache Synapse)
2009-03-25 18:36:26,229 [-] [mailto-Worker-1] DEBUG MailTransportListener Checking mail for account : [email protected]
2009-03-25 18:36:26,230 [-] [mailto-Worker-1] DEBUG MailTransportListener Attempting to connect to POP3/IMAP server for : [email protected] using {}
DEBUG: mail.imap.fetchsize: 16384
* OK Gimap ready for requests from 124.43.165.26 31if12210955wff.54
A0 CAPABILITY
* CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA XLIST CHILDREN XYZZY
A0 OK Thats all she wrote! 31if12210955wff.54
DEBUG: protocolConnect login, host=imap.gmail.com, user=synapse.demo.1, password=<non-null>
A1 LOGIN synapse.demo.1 mailpassword
A1 OK [email protected] authenticated (Success)
IMAP DEBUG: IMAPProtocol noop
A2 NOOP
A2 OK Success
A3 LIST INBOX ""
* LIST (\Noselect) "/" "/"
A3 OK Success
2009-03-25 18:36:29,397 [-] [mailto-Worker-1] DEBUG MailTransportListener Connecting to folder : INBOX of email account : [email protected]
DEBUG: connection available -- size: 1
A4 SELECT INBOX
* FLAGS (\Answered \Flagged \Draft \Deleted \Seen)
* OK [PERMANENTFLAGS (\Answered \Flagged \Draft \Deleted \Seen \*)]
* OK [UIDVALIDITY 600509603]
* 3 EXISTS
* 0 RECENT
* OK [UNSEEN 2]
* OK [UIDNEXT 172]
A4 OK [READ-WRITE] INBOX selected. (Success)
A5 LIST "" INBOX
* LIST (\HasNoChildren) "/" "INBOX"
A5 OK Success
A6 FETCH 1:3 (ENVELOPE INTERNALDATE RFC822.SIZE FLAGS BODYSTRUCTURE BODY.PEEK[HEADER] RFC822.SIZE)
* 1 FETCH (RFC822.SIZE 2851657 INTERNALDATE "25-Mar-2009 11:36:30 +0000" FLAGS (\Seen) ENVELOPE ("Wed, 25 Mar 2009 04:36:23 -0700 (PDT)" "Fw: \"GOD WILL...\" - Great piece of music.." (("Asankha C. Perera" NIL "username" "yahoo.com")) (("Asankha C. Perera" NIL "username" "yahoo.com")) (("Asankha C. Perera" NIL "username" "yahoo.com")) ((NIL NIL "synapse.demo.1" "gmail.com")) NIL NIL NIL "<[email protected]>") BODYSTRUCTURE ((("TEXT" "PLAIN" ("CHARSET" "utf-8") NIL NIL "QUOTED-PRINTABLE" 658 8 NIL NIL NIL)("TEXT" "HTML" ("CHARSET" "utf-8") NIL NIL "QUOTED-PRINTABLE" 2045 26 NIL NIL NIL) "ALTERNATIVE" ("BOUNDARY" "0-1595074673-1237980984=:74233") NIL NIL)("APPLICATION" "OCTET-STREAM" NIL NIL NIL "BASE64" 2845966 NIL ("ATTACHMENT" ("FILENAME" "GodWill.pps")) NIL) "MIXED" ("BOUNDARY" "0-1501220902-1237980984=:74233") NIL NIL) BODY[HEADER] {2363}
Delivered-To: [email protected]
Return-Path: <[email protected]>
...<removed to reduce size of pos>...
Message-ID: <[email protected]>
Date: Wed, 25 Mar 2009 04:36:23 -0700 (PDT)
From: "Asankha C. Perera" <[email protected]>
Subject: Fw: "GOD WILL..." - Great piece of music..
To: [email protected]
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="0-1501220902-1237980984=:74233"Edited by: asankha on Mar 25, 2009 8:33 AM

Answer 1

Here is the second part of the trace (split to adhere to the 5000 char limit on the post)
* 2 FETCH (RFC822.SIZE 2851659 INTERNALDATE "25-Mar-2009 11:34:12 +0000" FLAGS () ENVELOPE ("Wed, 25 Mar 2009 04:34:07 -0700 (PDT)" "Fw: \"GOD WILL...\" - Great piece of music.." (("Asankha C. Perera" NIL "username" "yahoo.com")) (("Asankha C. Perera" NIL "username" "yahoo.com")) (("Asankha C. Perera" NIL "username" "yahoo.com")) ((NIL NIL "synapse.demo.1" "gmail.com")) NIL NIL NIL "<[email protected]>") BODYSTRUCTURE ((("TEXT" "PLAIN" ("CHARSET" "utf-8") NIL NIL "QUOTED-PRINTABLE" 659 8 NIL NIL NIL)("TEXT" "HTML" ("CHARSET" "utf-8") NIL NIL "QUOTED-PRINTABLE" 2046 26 NIL NIL NIL) "ALTERNATIVE" ("BOUNDARY" "0-1712515897-1237980847=:96940") NIL NIL)("APPLICATION" "OCTET-STREAM" NIL NIL NIL "BASE64" 2845966 NIL ("ATTACHMENT" ("FILENAME" "GodWill.pps")) NIL) "MIXED" ("BOUNDARY" "0-1482645014-1237980847=:96940") NIL NIL) BODY[HEADER] {2363}
Delivered-To: [email protected]
Return-Path: <[email protected]>
...<removed to reduce size of pos>...
Message-ID: <[email protected]>
Date: Wed, 25 Mar 2009 04:34:07 -0700 (PDT)
From: "Asankha C. Perera" <[email protected]>
Subject: Fw: "GOD WILL..." - Great piece of music..
To: [email protected]
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="0-1482645014-1237980847=:96940"
* 3 FETCH (RFC822.SIZE 2833 INTERNALDATE "25-Mar-2009 11:44:33 +0000" FLAGS () ENVELOPE ("Wed, 25 Mar 2009 17:14:50 +0530" "Hello World" (("Asankha C. Perera" NIL "username" "xxxxxxxxx.com")) (("Perera <[email protected]>" NIL "username" NIL)) (("Asankha C. Perera" NIL "username" "xxxxxxxxx.com")) ((NIL NIL "synapse.demo.1" "gmail.com")) NIL NIL NIL "<[email protected]>") BODYSTRUCTURE ("TEXT" "PLAIN" ("CHARSET" "ISO-8859-1" "FORMAT" "flowed") NIL NIL "7BIT" 110 11 NIL NIL NIL) BODY[HEADER] {2555}
Delivered-To: [email protected]
...<removed to reduce size of pos>...
Sender: username Perera <[email protected]>
Message-ID: <[email protected]>
Date: Wed, 25 Mar 2009 17:14:50 +0530
From: "Asankha C. Perera" <[email protected]>
User-Agent: Thunderbird 2.0.0.16 (X11/20080724)
MIME-Version: 1.0
To: [email protected]
Subject: Hello World
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
A6 OK Success
2009-03-25 18:36:30,689 [-] [mailto-Worker-1] DEBUG MailTransportListener 3 messgaes in folder : INBOX
A7 FETCH 1 (BODY.PEEK[HEADER.FIELDS (Status)])
* 1 FETCH (BODY[HEADER.FIELDS (Status)] {4}
A7 OK Success
A8 FETCH 1 (FLAGS)
* 1 FETCH (FLAGS (\Seen))
A8 OK Success
A9 FETCH 1 (ENVELOPE INTERNALDATE RFC822.SIZE)
* 1 FETCH (RFC822.SIZE 2851657 INTERNALDATE "25-Mar-2009 11:36:30 +0000" ENVELOPE ("Wed, 25 Mar 2009 04:36:23 -0700 (PDT)" "Fw: \"GOD WILL...\" - Great piece of music.." (("Asankha C. Perera" NIL "username" "yahoo.com")) (("Asankha C. Perera" NIL "username" "yahoo.com")) (("Asankha C. Perera" NIL "username" "yahoo.com")) ((NIL NIL "synapse.demo.1" "gmail.com")) NIL NIL NIL "<[email protected]>"))
A9 OK Success
2009-03-25 18:36:31,981 [-] [mailto-Worker-1] ERROR MailTransportListener Error checking mail for account : [email protected] :: Failed to load IMAP envelope
javax.mail.MessagingException: Failed to load IMAP envelope
     at com.sun.mail.imap.IMAPMessage.loadEnvelope(IMAPMessage.java:1196)
     at com.sun.mail.imap.IMAPMessage.getSubject(IMAPMessage.java:302)