I have I case where I absolutely need to get rid of all obsolete classes but #fixObsoleteReferences simply refuses to nuke all entries in the #ObsoleteSubclasses variable of Behavior. The classes and meta classes that don't go away are subclasses of ClassFactoryForTestCase and I do send it the #cleanup method.

I noticed that this only is true as long as the test runner is open. Once I close the test runner, #fixObsoleteReferences succeeds. But that doesn't really help me because my test case fails *in* the test runner of course…

Here's a test case that illustrates my problem:

ClassFactoryForTestCaseTest>>testObsoleteReferences
	factory delete: factory new class.
	factory cleanUp.
	self 
		shouldnt: [ Smalltalk fixObsoleteReferences ]
		raise: Error

Image: 4.4
Build: #12320
VM: SqueakVM 4.2.5.bea1U

Cheers,
Max