Regression

osx-32 / Tests-osx-32 / MacOSX32.Glamour.Tests.Morphic.GLMUpdateMorphicTest.testAnnouncerUnregistration (from Glamour-Tests-Morphic)

Failing for the past 1 build (Since Unstable#763 )
Took 2.2 sec.

Error Message

receiver of "hasPositiveExtent" is nil

Stacktrace

UndefinedObject(Object)>>doesNotUnderstand: #hasPositiveExtent
UndefinedObject>>doesNotUnderstand: #hasPositiveExtent
ScrollBar(Morph)>>invalidRect:from:
ScrollBar(Morph)>>invalidRect:
ScrollBar(Morph)>>position:
ScrollBar(Morph)>>bounds:
GLMPaginatedMorphTreeMorph(ScrollPane)>>hResizeScrollBar
GLMPaginatedMorphTreeMorph(PaginatedMorphTreeMorph)>>hResizeScrollBar
GLMPaginatedMorphTreeMorph(ScrollPane)>>resizeScrollBars
GLMPaginatedMorphTreeMorph(ScrollPane)>>extent:
GLMPaginatedMorphTreeMorph(MorphTreeMorph)>>extent:
GLMPaginatedMorphTreeMorph(PaginatedMorphTreeMorph)>>extent:
GLMPaginatedMorphTreeMorph(Morph)>>bounds:
GLMPaginatedMorphTreeMorph(Morph)>>layoutInBounds:
GLMPaginatedMorphTreeMorph(Morph)>>layoutProportionallyIn:
GLMPaginatedMorphTreeMorph(ScrollPane)>>layoutProportionallyIn:
[ :m | m layoutProportionallyIn: newBounds ] in ProportionalLayout>>layout:in:
Array(SequenceableCollection)>>do:
GLMPanelMorph(Morph)>>submorphsDo:
ProportionalLayout>>layout:in:
GLMPanelMorph(Morph)>>doLayoutIn:
[ self doLayoutIn: self layoutBounds ] in GLMPanelMorph(Morph)>>computeFullBounds
BlockClosure>>on:do:
GLMPanelMorph(Morph)>>computeFullBounds
GLMPanelMorph(Morph)>>fullBounds
GLMPanelMorph(Morph)>>position:
GLMPanelMorph(Morph)>>bounds:
GLMPanelMorph(Morph)>>layoutInBounds:
TableLayout>>layoutTopToBottom:in:
TableLayout>>layout:in:
GLMPanelMorph(Morph)>>doLayoutIn:
[ self doLayoutIn: self layoutBounds ] in GLMPanelMorph(Morph)>>computeFullBounds
BlockClosure>>on:do:
GLMPanelMorph(Morph)>>computeFullBounds
GLMPanelMorph(Morph)>>fullBounds
[ :m | 
| subBox |
m visible
	ifTrue: [ subBox := m fullBounds.
		box
			ifNil: [ box := subBox copy ]
			ifNotNil: [ box := box quickMerge: subBox ] ] ] in LazyTabGroupMorph(Morph)>>submorphBounds
Array(SequenceableCollection)>>do:
LazyTabGroupMorph(Morph)>>submorphBounds
LazyTabGroupMorph(Morph)>>privateFullBounds
LazyTabGroupMorph(Morph)>>changed
LazyTabGroupMorph(Morph)>>extent:
LazyTabGroupMorph(Morph)>>bounds:
LazyTabGroupMorph(Morph)>>layoutInBounds:
TableLayout>>layoutTopToBottom:in:
TableLayout>>layout:in:
GLMPanelMorph(Morph)>>doLayoutIn:
[ self doLayoutIn: self layoutBounds ] in GLMPanelMorph(Morph)>>computeFullBounds
BlockClosure>>on:do:
GLMPanelMorph(Morph)>>computeFullBounds
GLMPanelMorph(Morph)>>fullBounds
GLMPanelMorph(Morph)>>privateInvalidateMorph:
GLMPanelMorph(Morph)>>privateAddMorph:atIndex:
GLMPanelMorph(Morph)>>addMorphFront:
GLMPanelMorph(Morph)>>addMorph:
GLMPanelMorph(Morph)>>addMorph:fullFrame:
GLMMorphicPaneRenderer>>renderContainerFor:
GLMMorphicPaneRenderer>>actOnMatchingPresentationChanged:
MessageSend>>value:
MessageSend>>cull:
MessageSend>>cull:cull:
[ action cull: anAnnouncement cull: announcer ] in AnnouncementSubscription>>deliver:
BlockClosure>>on:do:
BlockClosure>>on:fork:
AnnouncementSubscription>>deliver:
[ "Ensure delivery to remaining announcements" subscription deliver: anAnnouncement ] in SubscriptionRegistry>>deliver:to:startingAt:
BlockClosure>>ifCurtailed:
SubscriptionRegistry>>deliver:to:startingAt:
SubscriptionRegistry>>deliver:to:
SubscriptionRegistry>>deliver:
GLMPane(Announcer)>>announce:
GLMPane(GLMAnnouncer)>>announce:
GLMPane(GLMLoggedObject)>>announce:
GLMPane>>notingPresentationChangeDo:
GLMPanePort(GLMBoundPort)>>notingPresentationChangeDo:
GLMTransmission>>transmitIn:
[ :each | each transmitIn: aPortEvent transmissionContext copy ] in GLMTabulator(GLMBrowser)>>outerPortEvent:
OrderedCollection>>do:
GLMTabulator(GLMBrowser)>>outerPortEvent:
[ :each | each outerPortEvent: aPortEvent ] in GLMCompositePresentation>>outerPortEvent:
OrderedCollection>>do:
GLMCompositePresentation>>do:
GLMCompositePresentation>>outerPortEvent:
GLMPane>>portEvent:
[ self silentValue: anObject.
self pane
	portEvent:
		(GLMPortEvent
			on: self
			previouslyValued: oldValue
			in: aTransmissionContext) ] in GLMPanePort>>changeValueTo:in:
GLMPane>>notingPresentationChangeDo:
GLMPanePort>>changeValueTo:in:
GLMPanePort>>value:in:
GLMPanePort(GLMPort)>>value:
GLMTabulator(GLMPresentation)>>entity:
GLMUpdateMorphicTest>>testAnnouncerUnregistration
GLMUpdateMorphicTest(TestCase)>>performTest