Copied from Pharo issue tracker 13246

If one writes a method with at least one parameter and a <path ...> in a class 
subclassed from WARestfulHandler he gets an "MessageNotUnderstood 
RBArgumentNode>>key" error.

I think this comes from GRPharoPlatform>>argumentNamesOf:
argumentNamesOf: aCompiledMethod
^ aCompiledMethod methodNode arguments collect: [ :each | each key ]

whereas this should (maybe!?)
^ aCompiledMethod methodNode arguments collect: [ :each | each token value ]

Steps to reproduce:
// ===
a) Use a fresh image (pharo-30846.image)
b) 
Gofer new
    url:'http://www.smalltalkhub.com/mc/Seaside/MetacelloConfigurations/main';
    package: 'ConfigurationOfSeaside3';
    load.
((Smalltalk at: #ConfigurationOfSeaside3) project version: #stable) load.

c)
Gofer new
squeaksource: 'Seaside31Addons';
package: 'Seaside-REST-Core';
package: 'Seaside-Pharo-REST-Core';
package: 'Seaside-Tests-REST-Core';
load.

d) FileIn
'From Pharo3.0 of 18 March 2013 [Latest update: #30846] on 5 May 2014 at 
7:56:58.462612 pm'!
WARestfulHandler subclass: #Pharo3FogbuzReport
instanceVariableNames: ''
classVariableNames: ''
poolDictionaries: ''
category: 'GHP-Pharo'!
!Pharo3FogbuzReport commentStamp: '<historical>' prior: 0!
!

!Pharo3FogbuzReport methodsFor: 'as yet unclassified' stamp: 'GeroldPummer 
5/5/2014 19:50'!
getMessageJson: aParameter
<get>
<path: '/bug/{aParameter}'>

self halt.
^'OK'! !

"-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- "!

Pharo3FogbuzReport class
instanceVariableNames: ''!
!Pharo3FogbuzReport class commentStamp: '<historical>' prior: 0!
!

!Pharo3FogbuzReport class methodsFor: 'as yet unclassified' stamp: 
'GeroldPummer 5/5/2014 19:49'!
initialize
WAAdmin register: self at: 'bugreport'! !

Pharo3FogbuzReport initialize!
// ===

e) do
ZnZincServerAdaptor startOn: 8086.

f) do
Pharo3FogbuzReport initialize.

g)
point your web-browser to http://localhost:8086/bugreport/bug/somevalue

h)
The smalltalk debugger should come up with the parameter aParameter and the 
value 'somevalue' but gives a message not understood error.


"Funny" thing on this is, I changed my argumentNamesOf: Method to the new one, 
and wrote this report. Then I changed the method back to the old method and now 
I get an error "WAArgumentNotFoundError: argument "aParameter" was not found in 
an OrderedCollection(RBArgumentNode(aParameter))". I then reproduced all with a 
fresh image.
Assigned to Everyone by Gerold Pummer 5/5/2014 8:22 PM 
Edited by Marcus Denker 7/16/2014 (Today) 1:20 PM  Edit  
The method #argumentNamesOf: should be rewritten to use 

#argumentNames

Can you move this issue to the issue tracker of Seaside?
Edited by Marcus Denker 7/16/2014 (Today) 1:21 PM  Edit  
argumentNamesOf: aCompiledMethod
^ aCompiledMethod argumentNames

isn't it nice to have a good API on CompiledMethod instead of writing a layer 
on top?
Resolved (Invalid) and assigned to Gerold Pummer by Marcus Denker 7/16/2014 
(Today) 1:24 PM 
Status changed from 'Work Needed' to 'Resolved (Invalid)'.
Milestone changed from 'Later' to 'Pharo4.0: 31/03/2015'.
Closed by Marcus Denker 7/16/2014 (Today) 1:26 PM  Edit  
I close it here as there is no action possible for Pharo. It needs to be fixed 
in Grease.
Edited by Stephan Eggermont 7/16/2014 (Today) 2:24 PM  Edit  
Some remarks:

- The Seaside31Addons are now on smalltalkhub in Seaside/Seaside31
- It is an extension method in *seaside-pharo-rest-core
- Fix needs a change in ConfigurationOfSeaside