Nicolas Cellier uploaded a new version of Tools to project The Trunk:
http://source.squeak.org/trunk/Tools-fbs.344.mcz

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

Name: Tools-fbs.344
Author: fbs
Time: 25 April 2011, 7:33:52.584 pm
UUID: 9e729fc7-f8d1-e145-9d32-930c91bfd5a8
Ancestors: Tools-fbs.343

Balázs Kósi found another bug, deleting a class with a method selected. This should resolve this bug and any others of a similar nature. If the currently selected class doesn't exist, consider this the same as having no class selected.

=============== Diff against Tools-fbs.343 ===============

Item was changed:
  ----- Method: Browser>>selectedClass (in category 'class list') -----
  selectedClass
  	"Answer the class that is currently selected. Answer nil if no selection 
  	exists."
  
  	| name envt |
  	(name := self selectedClassName) ifNil: [^ nil].
  	(envt := self selectedEnvironment) ifNil: [^ nil].
+ 	^ envt at: name ifAbsent: [nil]!
- 	^ envt at: name!