A new version of System was added to project The Inbox:
http://source.squeak.org/inbox/System-cao.374.mcz

==================== Summary ====================

Name: System-cao.374
Author: cao
Time: 7 September 2010, 4:25:03.391 pm
UUID: eb5487e5-bb17-4b41-8f2e-12a475879f44
Ancestors: System-ar.372

The new SchemeRegistry for URL types interacts badly with Project resourceUrl.  The unadorned project name causes GenericUrl to be used, and privateInitializeFromText: throws an exception.

Easy demo of this for the trunk of 2010/9/6:

  I)	Set the background image for the root project.
  II) Make a new project.
  III) Go to previous project.
  IV) See debug come up.  :(

Ugly workaround: make Project>>resourceUrl append
project:/// instreat of returning an unadorned project name.

Under this change, HierarchicalUrl is used instead of GenericUrl.  I have no idea what this may break though!


=============== Diff against System-ar.372 ===============

Item was changed:
  ----- Method: Project>>resourceUrl (in category 'resources') -----
  resourceUrl
  	"compose my base url for resources on the server"
  	| firstURL | 
  "
  	primaryServer := self primaryServerIfNil: [^''].
  	firstURL := primaryServer altUrl ifNil: [primaryServer url]."
  	firstURL := self downloadUrl.
  	firstURL isEmpty
+ 		ifFalse: [firstURL last == $/ ifFalse: [firstURL := firstURL, '/']]
+ 		ifTrue: [firstURL := 'project:///'].
- 		ifFalse: [firstURL last == $/ ifFalse: [firstURL := firstURL, '/']].
  	^ firstURL, self resourceDirectoryName , '/'
  !