Hi Ben,

Thanks for looking into this. I've gone through your steps on my

machine (the image filename is Pharo-40622.image so I assume that is a

build number) and I get the same error you do. As you say, the errors

are not identical but hopefully this will lead to a fix for both. For

continuing my work, I am going to install a fresh image, and hopefully

I can still rename classes as long as there are no MessageBrowsers

open. I'd be interested in hearing other workarounds.

Lyn

On Wed, Oct 14, 2015 at 7:01 AM, Ben Coman <btc@openinworld.com> wrote:

That sounds like a reasonable choice.�� Anyhow, with build 50384 I can
reproduce a similar error as follows...

1. Open fresh image.
2. World > Tools > Recent Messages
3. World > System Browser
4. Package pane > Add package > "AAPackage"
5. Class pane > Add class > "AAClass"
6. Protocol pane > no messages
7. Code pane > replace template with "test1" and save
8. Class pane > right-click "AAClass" > Rename > "AAClass2" > Ok
9. Code pane > replace "test1" with "test2" and save

which produces...

UndefinedObject(Object)>>doesNotUnderstand: #timeStamp
RGMethodDefinition>>stamp
[ self class parseTimestampFrom: self stamp default: DateAndTime epoch
] in RGMethodDefinition>>timeStamp
[ self at: key put: aBlock value ] in
IdentityDictionary(Dictionary)>>at:ifAbsentPut:
IdentityDictionary(Dictionary)>>at:ifAbsent:
IdentityDictionary(Dictionary)>>at:ifAbsentPut:
RGMethodDefinition(RGDefinition)>>annotationNamed:ifAbsentPut:
RGMethodDefinition>>timeStamp
[ :a :b | a timeStamp > b timeStamp ] in RecentMessageList>>open
Array(SequenceableCollection)>>mergeFirst:middle:last:into:by:
Array(SequenceableCollection)>>mergeSortFrom:to:src:dst:by:
OrderedCollection>>sort:
OrderedCollection(SequenceableCollection)>>sorted:
MultiColumnListModel(ListModel)>>items:
MessageBrowser>>messages:
...
WorldMorph>>doOneCycle

So thanks Lyn, you found a bug.�� Did you get this same error, or just
similar?�� Anyhow, it may be the same root cause.

However I didn't create an issue in the tracker yet, since I wasn't
sure what the title should be... anyone?

cheers -ben

On Wed, Oct 14, 2015 at 10:27 AM, Lyn Headley <laheadle@gmail.com> wrote:
> Because Pharo 4 is the latest release. Do I really have to defend this
> choice?
>
> On Tue, Oct 13, 2015 at 2:32 PM, Alexandre Bergel <alexandre.bergel@me.com>
> wrote:
>>
>> I have no idea. But why don���t you move to Pharo 5?
>>
>> Cheers,
>> Alexandre
>>
>>
>> > On Oct 13, 2015, at 4:36 PM, Lyn Headley <laheadle@gmail.com> wrote:
>> >
>> > Hello,
>> >
>> > I'm running pharo 4 and I'm having a problem. I recently renamed a
>> > class using the rename: menu item in the standard system browser (I
>> > believe it's called Nautilus) and now I am getting uncaught exceptions
>> > whenever I add or remove a method (three debugger windows pop
>> > up). Here is the stack trace; any advice?
>> >
>> > Thank you.
>> >
>> > Lyn
>> >
>> > Author: LynHeadley
>> > Date: 2015-10-13T08:51:16.837987-07:00
>> >
>> > UndefinedObject(Object)>>doesNotUnderstand: #theMetaClass
>> > RGMetaclassDefinition>>realClass
>> > RGMethodDefinition(RGElementDefinition)>>realParent
>> > RGMethodDefinition(RGElementDefinition)>>realClass
>> > RGMethodDefinition>>methodClass
>> > ByteSymbol(Symbol)>>value:
>> > OrderedCollection>>collect:
>> > MessageBrowser>>buildHierarchyForMessages:
>> > MessageBrowser>>cacheHierarchyForClasses:
>> > MessageBrowser>>messages:
>> > [
>> > (item methodClass notNil and: [ item methodClass isObsolete not ])
>> >�� �� �� ��ifTrue: [
>> >�� �� �� �� �� �� �� ��| sel text boolean |
>> >�� �� �� �� �� �� �� ��boolean := textModel hasUnacceptedEdits.
>> >�� �� �� �� �� �� �� ��boolean
>> >�� �� �� �� �� �� �� �� �� �� �� ��ifTrue: [ text := textModel pendingText ].
>> >�� �� �� �� �� �� �� ��sel := listModel selectedItem.
>> >�� �� �� �� �� �� �� ��self
>> >�� �� �� �� �� �� �� �� �� �� �� ��messages:
>> >�� �� �� �� �� �� �� �� �� �� �� �� �� �� �� ��(listModel listItems
>> >�� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� ��add: item asFullRingDefinition;
>> >�� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� ��yourself).
>> >�� �� �� �� �� �� �� ��listModel setSelectedItem: sel.
>> >�� �� �� �� �� �� �� ��boolean
>> >�� �� �� �� �� �� �� �� �� �� �� ��ifTrue: [ textModel pendingText: text ] ] ] in
>> > MessageBrowser>>methodAdded:
>> > WorldState>>runStepMethodsIn:
>> > WorldMorph>>runStepMethods
>> > WorldState>>doOneCycleNowFor:
>> > WorldState>>doOneCycleFor:
>> > WorldMorph>>doOneCycle
>> > [
>> > [
>> > World doOneCycle.
>> > Processor yield.
>> > false ] whileFalse: [�� ] ] in MorphicUIManager>>spawnNewProcess
>> > [
>> > self value.
>> > Processor terminateActive ] in BlockClosure>>newProcess
>> >
>>
>> --
>> _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:
>> Alexandre Bergel�� http://www.bergel.eu
>> ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
>>
>>
>>
>>
>