ArrayIndexOutOfBoundsException within Javamail code?

Question

Hello,
I have working code that downloads messages from Gmail accounts, and I seem to have run across a specific message that causes an ArrayIndexOutOfBoundsException within the java mail code. I am using javamail 1.42 and here is the relevant part of the stack trace,
Jul 8 11:07:23 localhost java.lang.ArrayIndexOutOfBoundsException: 256
Jul 8 11:07:23 localhost at com.sun.mail.iap.Response.parseString(Response.java:391)
Jul 8 11:07:23 localhost at com.sun.mail.iap.Response.readString(Response.java:320)
Jul 8 11:07:23 localhost at com.sun.mail.imap.protocol.ENVELOPE.<init>(ENVELOPE.java:96)
Jul 8 11:07:23 localhost at com.sun.mail.imap.protocol.FetchResponse.parse(FetchResponse.java:127)
Jul 8 11:07:23 localhost at com.sun.mail.imap.protocol.FetchResponse.<init>(FetchResponse.java:63)
Jul 8 11:07:23 localhost at com.sun.mail.imap.protocol.IMAPResponse.readResponse(IMAPResponse.java:132)
Jul 8 11:07:23 localhost at com.sun.mail.imap.protocol.IMAPProtocol.readResponse(IMAPProtocol.java:260)
Jul 8 11:07:23 localhost at com.sun.mail.iap.Protocol.command(Protocol.java:319)
Jul 8 11:07:23 localhost at com.sun.mail.imap.protocol.IMAPProtocol.fetch(IMAPProtocol.java:1313)
Jul 8 11:07:23 localhost at com.sun.mail.imap.protocol.IMAPProtocol.fetch(IMAPProtocol.java:1294)
Jul 8 11:07:23 localhost at com.sun.mail.imap.IMAPMessage.fetch(IMAPMessage.java:1026)
Jul 8 11:07:23 localhost at com.sun.mail.imap.IMAPFolder.fetch(IMAPFolder.java:1020)
My code is making a call to folder.fetch(msgs, fp); , were folder is an instance of an IMAPFolder, and msgs is a non empty and non null Messages[], and fp is a non null FetchProfile.
Any ideas? I can provide the actual message that seems to be causing this problem, if necessary.
Thanks,
Rom

Answer 1

Bill, here's the full response from the gmail server for the problematic message for the pre fetch request:
* 4586 FETCH (RFC822.SIZE 5721 INTERNALDATE "01-Jul-2009 12:45:53 +0000" ENVELOPE ("Wed, 01 Jul 2009 12:42:34 GMT" "How to Successfully Market Your Women's Healthcare Program and Build Com
as you can see, it is an incomplete response. for example, here is the full (and complete) response for the previous message, which is fine:
* 4594 FETCH (RFC822.SIZE 2342 INTERNALDATE "08-Jul-2009 21:01:32 +0000" FLAGS () ENVELOPE ("Wed, 8 Jul 2009 21:01:30 +0000 (UTC)" "timing tonight" ((NIL NIL "kristin_goldman" "hotmail.com")) ((NIL NIL "kristin_goldman" "hotmail.com")) ((NIL NIL "kristin_goldman" "hotmail.com")) ((NIL NIL "rgoldman" "gmail.com")) NIL NIL NIL "<[email protected]>") BODY[HEADER.FIELDS (X-Mailer Message-ID Message-Id Date)] {106}
Message-ID: <[email protected]>
Date: Wed, 8 Jul 2009 21:01:30 +0000 (UTC)
The other issue the problematic message surfaced is that when one message is bad (for whatever reason) the whole folder.fetch(Messages[], FetchProfile) fails for all the messages in the array. In order to be able to process the other messages, I also had to modify the "while (!done)" loop on line 317 in Protocol.java. I basically added a "catch (Exception e) {
continue;
}" to the loop. Do you have a better suggestion on how to handle this? Maybe catching a less generic exception than Exception?
Thanks,
Rom