2010/10/12 Gary Chambers <gazzaguru2@btinternet.com>:
Hi all, I've encountered a problem with FreeType with respect to the new finalization scheme. http://code.google.com/p/pharo/issues/detail?id=3096 Regards, Gary
FT2HandleRegistry overrides following method: add: anObject "Add anObject to the receiver. Store the object as well as the associated executor." | executor dup | executor := anObject executor. dup := nil. self protected:[ dup := valueDictionary detect: [ :v | v handle = executor handle ] ifNone: [ ]. valueDictionary at: anObject put: executor. ]. dup ifNotNil: [ self error: 'Duplicate object added!'. self remove: anObject ]. ^anObject As i see, the intent is to prevent registering a same handle twice, so in own turn, when time will come, a #finalize won't attempt to destroy same handle twice. The proposed fix (as you wrote in issue tracker) registry ^Registry ifNil: [ Registry := WeakRegistry new] appears to fix the problem... But apparently its not the same as in original. Okay, but since we never seen the error: 'Duplicate object added!', then i think it may work without it :) Still, it would be good to know, how handles are created, and what the chances that they could be duplicated. -- Best regards, Igor Stasenko AKA sig.