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Last Comment Bug 738711 - The rootMsgFolder getter of imIncomingServer is sometimes called
: The rootMsgFolder getter of imIncomingServer is sometimes called
Product: Thunderbird
Classification: Client Software
Component: Instant Messaging (show other bugs)
: Trunk
: All All
: -- trivial (vote)
: Thunderbird 14.0
Assigned To: Florian Quèze [:florian] [:flo]
Depends on:
  Show dependency treegraph
Reported: 2012-03-23 11:01 PDT by Florian Quèze [:florian] [:flo]
Modified: 2012-03-28 02:38 PDT (History)
2 users (show)
See Also:
Crash Signature:
QA Whiteboard:
Iteration: ---
Points: ---

Patch (775 bytes, patch)
2012-03-23 11:01 PDT, Florian Quèze [:florian] [:flo]
mozilla: review+
Details | Diff | Splinter Review

Description Florian Quèze [:florian] [:flo] 2012-03-23 11:01:03 PDT
Created attachment 608771 [details] [diff] [review]

I saw this while running mozmill tests with an IRC account in the default profile. It's called with this stack:

0 anonymous() ["file:///Users/florian/buildhg/comm-central/obj-tbird/mozilla/dist/":218]
    this = [object Object]
1 GetInboxFolder(server = [object Object]) ["chrome://messenger/content/mailWindowOverlay.js":1158]
    nsMsgFolderFlags = undefined
    rootMsgFolder = undefined
    this = [object ChromeWindow @ 0x3050780 (native @ 0x304ffb8)]
2 MigrateFolderViews() ["chrome://messenger/content/msgMail3PaneWindow.js":1256]
    index = 2
    inbox = [xpconnect wrapped nsIMsgFolder @ 0x30747a0 (native @ 0x1e479800)]
    server = [object Object]
    servers = [xpconnect wrapped nsISupportsArray @ 0x30746a0 (native @ 0x3074660)]
    folderViewsVersion = 0
    this = [object ChromeWindow @ 0x3050780 (native @ 0x304ffb8)]
3 LoadPostAccountWizard() ["chrome://messenger/content/msgMail3PaneWindow.js":449]
    toolbarset = undefined
    toolbox = undefined
    completeStartup = [function]
    startMsgHdr = undefined
    startFolderURI = undefined
    this = [object ChromeWindow @ 0x3050780 (native @ 0x304ffb8)]
4 OnLoadMessenger() ["chrome://messenger/content/msgMail3PaneWindow.js":413]
    panelcontainer = undefined
    tabmail = [object XULElement @ 0x21ee7aa0 (native @ 0x1e07bff0)]
    this = [object ChromeWindow @ 0x3050780 (native @ 0x304ffb8)]
5 onload(event = [object Event @ 0x1d757cb0 (native @ 0x1e0c8230)]) ["chrome://messenger/content/messenger.xul":1]
    this = [object ChromeWindow @ 0x3050780 (native @ 0x304ffb8)]

Not implementing it seems harmless as GetInboxFolder has a try/catch and will return null when an exception is thrown, the only visible effect is "TypeError: rootMsgFolder is null" printed in the log as GetInboxFolder dumps the exception.

I don't like noise and some future caller may not be as careful as GetInboxFolder so I think we should still fix it.
Comment 1 Florian Quèze [:florian] [:flo] 2012-03-28 02:38:36 PDT

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