Bug 509683 – Stack trace when doing flat review on a Java application

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Bug 509683 - Stack trace when doing flat review on a Java application


Summary:	Stack trace when doing flat review on a Java application


Status:	RESOLVED FIXED

Product:	orca
Classification:	Applications
Component:	general
Version:	unspecified
Hardware:	Other opensolaris

Importance:	Normal normal
Target Milestone:	2.22.0
Assigned To:	Willie Walker
QA Contact:	Orca Maintainers

URL:
Whiteboard:

Depends on:	511625
Blocks:	orca-java

Reported:	2008-01-15 16:17 UTC by Willie Walker
Modified:	2008-07-22 19:33 UTC

See Also:
GNOME target:	---
GNOME version:	---

Description Willie Walker 2008-01-15 16:17:26 UTC

System:

SunOS nvx79 5.11 snv_79 i86pc i386 i86pc Solaris
GNOME gnome-about 2.20.1
java version "1.6.0_04"
Java(TM) SE Runtime Environment (build 1.6.0_04-b10)
Java HotSpot(TM) Client VM (build 10.0-b19, mixed mode, sharing)
Orca, GAIL, ATK, AT-SPI, and java-access-bridge all from trunk.

Steps to reproduce:

Run java -jar /usr/java/demo/jfc/SwingSet2/SwingSet2.jar and Orca.  Press any of the flat review keys (e.g., KP_2).  The following error is emitted:

vvvvv PROCESS KEY PRESS EVENT KP_Down vvvvv

Traceback (most recent call last):

+ Trace 185452

File "/usr/local/lib/python2.4/site-packages/orca/input_event.py", line 182
```
n processInputEvent     consumed = self.function(script, inputEvent)
```
File "/usr/local/lib/python2.4/site-packages/orca/default.py", line 4134 in r
```
eviewCurrentCharacter     self._reviewCurrentCharacter(inputEvent, clickCount)
```
File "/usr/local/lib/python2.4/site-packages/orca/default.py", line 4147 in _
```
reviewCurrentCharacter     context = self.getFlatReviewContext()
```
File "/usr/local/lib/python2.4/site-packages/orca/default.py", line 3653 in g
```
etFlatReviewContext     self.flatReviewContext = self.flatReviewContextClass(self)
```
File "/usr/local/lib/python2.4/site-packages/orca/flat_review.py", line 615
```
n __init__     self.lines = self.clusterZonesByLine(self.getShowingZones(obj))
```
File "/usr/local/lib/python2.4/site-packages/orca/flat_review.py", line 1291 in getShowingZones
```
rootexts = root.queryComponent().getExtents(0)
```
File "/usr/lib/python2.4/site-packages/pyatspi/accessible.py", line 196 in _i
```
nner     raise NotImplementedError NotImplementedError
```

Comment 1 Willie Walker 2008-01-23 20:39:53 UTC

The crux of the problem is this:

+ Trace 186539

File "/usr/local/lib/python2.4/site-packages/orca/flat_review.py", line 1291 in getShowingZones
```
rootexts = root.queryComponent().getExtents(0)
```
File "/usr/lib/python2.4/site-packages/pyatspi/accessible.py", line 196 in _i
```
nner     raise NotImplementedError NotImplementedError
```

The problem is that we should not be handed an application in the first place in this method. In looking at this, the getRoleName() for the object is 'application', but the getRole() is ROLE_EXTENDED. So, there's a bug in the Java access bridge.

Comment 2 Willie Walker 2008-01-23 20:58:26 UTC

Once the blocking bug is fixed, there's also a problem in flat_review.py where we are running into a LookupError when doing a queryText:

On the Java side we see things like this a lot, not just for this bug:

*** MonkeyBeans  ERROR  ***: org.GNOME.Accessibility.ApplicationImpl@127a49c: Bonobo::UnknownImpl: Negative refcount reached!

On the Orca side, we see a LookupError this when we try to do a flat review (with the patch from bug 511625 applied):

Traceback (most recent call last):

+ Trace 186541

File "/usr/lib/python2.4/site-packages/orca/input_event.py", line 182 in processInputEvent
```
consumed = self.function(script, inputEvent)
```
File "/usr/lib/python2.4/site-packages/orca/default.py", line 4044 in reviewCurrentItem
```
self._reviewCurrentItem(inputEvent, targetCursorCell, clickCount)
```
File "/usr/lib/python2.4/site-packages/orca/default.py", line 4073 in _reviewCurrentItem
```
context = self.getFlatReviewContext()
```
File "/usr/lib/python2.4/site-packages/orca/default.py", line 3676 in getFlatReviewContext
```
self.flatReviewContext = self.flatReviewContextClass(self)
```
File "/usr/lib/python2.4/site-packages/orca/flat_review.py", line 615 in __init__
```
self.lines = self.clusterZonesByLine(self.getShowingZones(obj))
```
File "/usr/lib/python2.4/site-packages/orca/flat_review.py", line 1376 in getShowingZones
```
zones.extend(self.getShowingZones(child))
```
File "/usr/lib/python2.4/site-packages/orca/flat_review.py", line 1376 in getShowingZones
```
zones.extend(self.getShowingZones(child))
```
File "/usr/lib/python2.4/site-packages/orca/flat_review.py", line 1376 in getShowingZones
```
zones.extend(self.getShowingZones(child))
```
File "/usr/lib/python2.4/site-packages/orca/flat_review.py", line 1376 in getShowingZones
```
zones.extend(self.getShowingZones(child))
```
File "/usr/lib/python2.4/site-packages/orca/flat_review.py", line 1376 in getShowingZones
```
zones.extend(self.getShowingZones(child))
```
File "/usr/lib/python2.4/site-packages/orca/flat_review.py", line 1297 in getShowingZones
```
return self.getZonesFromAccessible(root, rootexts)
```
File "/usr/lib/python2.4/site-packages/orca/flat_review.py", line 1084 in getZonesFromAccessible
```
accessible.queryText()
```
File "/usr/lib/python2.4/site-packages/pyatspi/accessible.py", line 206 in _inner
```
raise LookupError(e) LookupError
```


A quick hack, which works, is to trap for the LookupError.  But, something else is wrong.  We shouldn't be getting that MonkeyBeans error.

Comment 3 Willie Walker 2008-01-29 18:08:02 UTC

(In reply to comment #2)
> We shouldn't be getting that MonkeyBeans error.

Eitan fixed this with pyatspi bug #512702 (thanks Eitan!)