REPRO:

1. run uia2atk/test/samples/winfroms/linklabel.py
2. run the attachment script 3 times to doing queryAction() of linklabel

RESULTS:

the first time to run the script would doing correct, but then get difference errors:

[a11y@a11y-fedora12-32bit ~]$ ./getState.py 
/usr/lib/python2.6/site-packages/dbus/connection.py:242: DeprecationWarning: object.__init__() takes no parameters
  super(Connection, self).__init__(*args, **kwargs)
print hypertext and link:  [label | calculator:/usr/bin/gcalctool] [DEAD]
print link object:  [push button | /usr/bin/gcalctool]
iaction:  1

[a11y@a11y-fedora12-32bit ~]$ ./getState.py 
/usr/lib/python2.6/site-packages/dbus/connection.py:242: DeprecationWarning: object.__init__() takes no parameters
  super(Connection, self).__init__(*args, **kwargs)
print hypertext and link:  [label | calculator:/usr/bin/gcalctool] [DEAD]
print link object:  [DEAD]
Traceback (most recent call last):
  File "./getState.py", line 23, in <module>
    iaction = obj.queryAction()
  File "/usr/lib/python2.6/site-packages/pyatspi/accessible.py", line 123, in new_query
    return self.queryInterface(interface)
  File "/usr/lib/python2.6/site-packages/pyatspi/accessible.py", line 269, in queryInterface
    if interface in self.interfaces or interface == "org.a11y.atspi.Collection":
  File "/usr/lib/python2.6/site-packages/pyatspi/accessible.py", line 511, in _get_interfaces
    return func()
  File "/usr/lib/python2.6/site-packages/pyatspi/accessible.py", line 193, in dbus_method_func
    raise LookupError(e)
LookupError: org.freedesktop.DBus.Error.Failed: Method "GetInterfaces" with signature "" on interface "org.a11y.atspi.Accessible" could not be processed as object /org/a11y/atspi/accessible/6 does not exist

[a11y@a11y-fedora12-32bit ~]$ ./getState.py 
/usr/lib/python2.6/site-packages/dbus/connection.py:242: DeprecationWarning: object.__init__() takes no parameters
  super(Connection, self).__init__(*args, **kwargs)
print hypertext and link:  [label | calculator:/usr/bin/gcalctool] [DEAD]
print link object:  None
Traceback (most recent call last):
  File "./getState.py", line 23, in <module>
    iaction = obj.queryAction()
AttributeError: 'NoneType' object has no attribute 'queryAction'

EXPECTED RESULTS:

no error appears.

COMMENTS:

link children don't appear when using accerciser to navigate the linklabel.

this problem only appears in Fedora.