Comment #8 on issue 3581 by marianopeck: [Failing test] 1.1.1 Full: MethodWrappers.Tests.ObjectAsOneTimeMethodWrapperTest.testInstallOnClassCategory
http://code.google.com/p/pharo/issues/detail?id=3581
mmmm I don't understand. Check CompiledMethod >> at:put: at: key put: value "Set the value at key to be value." | index | index := self findElementOrNil: key. (self basicAt: index) ifNil: [tally := tally + 1. self basicAt: index put: key] ifNotNil: [(array at: index) flushCache]. array at: index put: value. self fullCheck. ^ value I think the problem is because ObjectAsMethodWrapper >> flushCache is empty. what do you think?