198633 - Crash when attempting to delete phantom calendars

Status: VERIFIED WORKSFORME

(Calendar :: General, defect)

Description

[Jonadab the Unsightly One (Nathan Eady)]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3) Gecko/20030312 GalionPublicLibrary/1.1
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3) Gecko/20030312

I'm defining "phantom calendars" as calendars that appear as checkboxes in
the list of calendars (upperleft corner of Calendar window, Calendars tab)
with no name and no events.  I'm not sure what causes them to exist, but
this is the second install of Mozilla and Calendar in which I've had them
appear on me, and once they exist I can reproduce a crash as follows:

Reproducible: Always

Steps to Reproduce:
1.  Start Mozilla and open a Calendar window.
2.  Click on the "Calendars" tab.
3.  Do one of the following:
    *  Attempt to uncheck a phantom calendar.
    *  Right-click a phantom calendar, choose "Delete Calendar",
       then hit the "Delete Calendar" button.
    *  Right-click a phantom calendar, choose "Delete Calendar",
       then hit the "Delete Calendar and File" button.
Actual Results:  
TB18329108X
TB18329104W
TB18328888Q
TB17763137G
TB17762896K
TB17762821G

Expected Results:  
Mozilla should not crash, and in the "delete calendar" and "delete calendar
and file" cases the offending phantom calendar should Go Away(TM).

I'm going to try to work up steps-to-reproduce for getting these phantom
calendars to appear in the first place, but I'll file that as a separate
bug (though I'll note its number here and this bug there).  I will 
(momentarily) attach a small screenshot showing an example, though.

Tenatively marking as Critical since Mozilla crashes, though there's
an easy workaround (don't attempt to get rid of the phantom calendars),
so you can mark as Normal if that seems more appropriate.

Comment 1

[Jonadab the Unsightly One (Nathan Eady)]

Attachment: Small screenshot showing one legit calendar and two phantom calendars.

Only phantom calendars (such as these shown here) cause this problem.  As
far as what causes the phantom calendars to exist in the first place...
I don't precisely know yet.  But once you get 'em, the only way I know
to get rid of them is to do a fresh install of Mozilla.  Anything else
you do to get rid of them causes this here crash bug.

Comment 2

[Jonadab the Unsightly One (Nathan Eady)]

> Anything else you do to get rid of them causes this here crash bug.

Except that, in at least one instance, I found that clicking (in Navigator)
on a link that pointed to text/calendar data caused that calendar to replace
one of the phantom ones.  Not sure if that means anything.

Comment 3

[Neil Smith]

Yes, I can confirm this - initially I got phantom calendars when testing a 
script to create calendars. Eventually after a shutdown & restart of mozilla, I 
was able to delete the calendars - it seemed to happen when calendars were 
remote syncing and I treied to delete the phantoms.

System : Windows 2000 pro, Mozilla 1.1 
[Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.1) Gecko/20020826]
[Mozilla Calendar 2003033112-cal]

Comment 4

[Mike Potter]

New contact from [e-mail] to [e-mail]
Filter on string OttawaMBA to get rid of these messages. 
Sorry for the spam.

Comment 5

[Frank]

I can confirm everything mentioned in the inital description of this bug!
While looking how to get rid of the phantom calendar (and the crashes) I found
that CalendarManager.rdf is broken! It is syntactically wrong *and* inconsitent
mixing up two different ways to save properties.
After fixing this file the phantom calendar and the crashes vanished.
I will create two attachments, one with the original broken CalendarManager.rdf
and another with the fixed one. I xxx-ed out my passwords (see Bug 185340) and
some parts of the IP-adresses.

I'm using "Mozilla 1.5 - Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.5)
Gecko/20031007" and "Mozilla Calendar 2003092614-cal" after upgrading feom
Mozilla 1.3 and the previous calendar release using Windows XPpro

Comment 6

[Frank]

Attachment: Broken CalendarManager.rdf (see comment 5)

Comment 7

[Frank]

Attachment: Fixed CalendarManager.rdf (see comment 5)

Comment 8

[Frank]

For the attachements of CalendarManager.rdf files did not work (?), see bug
226180 comment 4,5,6

Comment 9

[Martin Bagge / brother]

Is this still an issue?

Comment 10

[Jonadab the Unsightly One (Nathan Eady)]

> Is this still an issue?

Maybe not.  I'm currently using Sunbird 0.2a, and I have not thus far seen
this bug crop up there.  I created some new calendars, and I only got just
one copy of each of them.  So it's probably fixed.  Probably.  

Marking WORKSFORME; anyone who reproduces this on a recent version can reopen.

Comment 11

[Reed Loden [:reed]]

The bugspam monkeys have been set free and are feeding on Calendar :: General. Be afraid for your sanity!