[Mono-bugs] [Bug 486396] New: AddinManager.AddExtensionNodeHandler fires events on previously registered handlers as well

[bugzilla_noreply at novell.com]

https://bugzilla.novell.com/show_bug.cgi?id=486396


           Summary: AddinManager.AddExtensionNodeHandler fires events on
                    previously registered handlers as well
    Classification: Mono
           Product: Mono: Class Libraries
           Version: 1.9
          Platform: x86
        OS/Version: Ubuntu
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: Mono.Addins
        AssignedTo: lluis at novell.com
        ReportedBy: tschoel at web.de
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---


User-Agent:       Mozilla/5.0 (X11; U; Linux i686; de; rv:1.9.0.7)
Gecko/2009030422 Ubuntu/8.10 (intrepid) Firefox/3.0.7

A handler registered with AddinManager.AddExtensionNodeHandler is supposed to
"be called for all nodes existing in the path at the moment of registration".
This happens indeed, yet a handler registered before for the same path will be
called as well, thus being called for a second time. This is not the behaviour
specified by the contract.

Reproducible: Always

Steps to Reproduce:
1. Add a handler for some path with AddinManager.AddExtensionNodeHandler.
2. Add a second handler for the same path.
3. Observe the first handler being called for each node again on registration
of the second handler
Actual Results:  
Registration of the second handler makes the first handler be called again for
each node.

Expected Results:  
Only the newly registered handler schould be called once for each node.

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