258380 - ###!!! ASSERTION: You are calling CreateInstance "{b148eed2-236d-11d3-b35c-00a0cc3c1cde}" when a service for this CID already exists!: 'Error', file r:/mozilla/xpcom/components/nsComponentManager.cpp, line 1877

Status: RESOLVED DUPLICATE of bug 277853

(SeaMonkey :: UI Design, defect)

Description

[timeless]

###!!! ASSERTION: You are calling CreateInstance
"{b148eed2-236d-11d3-b35c-00a0cc3c1cde}" when a service for this CID already
exists!: 'Error', file r:/mozilla/xpcom/components/nsComponentManager.cpp, line 1877

R:\mozilla\dbg-i586-pc-msvc\dist\bin\components>grep b148ee compreg.dat
{b148eed2-236d-11d3-b35c-00a0cc3c1cde},,,,rel:gkwidget.dll
@mozilla.org/sound;1,{b148eed2-236d-11d3-b35c-00a0cc3c1cde}

issue: components should generally be treated as either singletons or non
singletons. @mozilla.org/sound;1 is being used as both, the fix is to find all
instances of:

Components.classes["@mozilla.org/sound;1"].createInstance
Components.classes["@mozilla.org/sound;1"].getService
do_CreateInstance("@mozilla.org/sound;1")
do_GetService("@mozilla.org/sound;1")

and similar ilk and standardize on either createInstance or getService. Pick
createInstance if there is internal state which needs to be maintained per
instance and multiple instances can peacefully coexist. Pick getService if there
is no internal state or if multiple instances cannot peacefully coexist and the
object internally manages multiple requests.

this decission is left as an exercise for the bug owner. people on irc should be
willing to help with the decission if necessary.

Comment 1

[timeless]

*** This bug has been marked as a duplicate of 277853 ***