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Re: Bytecode verifiers


In message <200012201108.eBKB8b402577@kevin.inria.fr>
          Bernard Serpette <Bernard.Serpette@sophia.inria.fr> wrote:

>         Sorry to disturb you, I have a short question which I hope you
> have the answer or at least a pointer to right person.. We are implementing
> a bytecode verifier and we are searching for a collection of classfiles
> in order to test the correctness of our implementation. We are particulary
> interested by "dirty" classfiles (which can be generated by a correct
> compiler) and "tricky" classfile (generated by optimizer or by hand).
> 
> 	In the Mauve libraries, dirty classfiles will be a good suite in
> order to test when "Class.forName" must raises an exception...
> 
> 	So, do you know where we can find this kind of datas ? We still
> don't have answers from JCK... By the way, we will happy to contribute
> to Mauve project by providing our local dirty classfiles.

First of all, I'd be very happy to see such tests in Mauve, as I use it
quite a bit to test my JVM.

It's not entirely clear what you're asking here (to me at least) - you
say you've got some dirty classes, but you also want some more classes?

One of the problems here is that Mauve is really only a test of the
library implementation - it doesn't (but perhaps should) target weak
spots in JVMs; it's not really organised in a manner suitable for this
- the tests are arranged in terms of library functionality, not JVM
functionality.

Peter


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