Eliot Miranda uploaded a new version of Tools to project The Trunk:
http://source.squeak.org/trunk/Tools-eem.822.mcz==================== Summary ====================
Name: Tools-eem.822
Author: eem
Time: 17 June 2018, 2:22:00.563889 pm
UUID: 22ddf529-3821-4bed-b1cf-e74753d6d8f3
Ancestors: Tools-eem.821
Robustness for when a class is reoved from under the browser's feet.
=============== Diff against Tools-eem.821 ===============
Item was changed:
----- Method: Browser>>hasClassSelected (in category 'class list') -----
hasClassSelected
+ ^ selectedClassName notNil and: [(Smalltalk classNamed: selectedClassName) notNil]!
- ^ selectedClassName notNil.!