I put 'self halt.' right after the local variable declaration in the methods: Browser>>openEditString: aString Browser>>buildWith: builder and then executed a 'Browser open.'. The openEditString: halt gets hit; the buildWith: halt doesn't.
I found out bildWith: builder is send from the method build: in the TooBuilder class! Hm, Probably the method exists for compatibility reasons: The Class description says about MVC, wxWidgets etc.
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