Re: ASM4 / Java 7

Jeremy,

  The problem is that code from the test you are referring to is too
naive to be ready for use in production. For instance, it should
maintain some kind of repository of the loaded class info and have
some kind of abstraction for loading class data. Our original
conclusion was that might be out of scope for ASM, but if you believe
the issue became common for Java 7, perhaps we may have to add
something to the commons package. Now it is only matter of finding a
volunteer. :)

  regards,
  Eugene


On Fri, Aug 26, 2011 at 6:59 PM, Jeremy Manson <[email protected]> wrote:
> Hi all,
>
> I seem to be having a problem with ASM 3.3 and Java 7...
>
> Basically, the problem is that:
>
> 1) I have to generate StackMaps when transforming bytecode with Java
> 7, or I get a VerifyError,
> 2) I can't generate StackMaps using ClassWriter, because doing so
> requires superclasses to be loaded - if I load a subclass B as a
> result of loading a superclass A, then A isn't available when B is
> transformed.
>
> You guys have a workaround for this, which is basically "copy the code
> in http://websvn.ow2.org/filedetails.php?repname=asm&path=%2Ftrunk%2Fasm%2Ftest%2Fconform%2Forg%2Fow2%2Fasm%2FClassWriterComputeFramesTest.java".
>  But doesn't it seem as if this would be a common enough problem for
> the code to be extracted from this test to somewhere everyone can use
> it, if not made the default behavior for ClassWriter?  Do I have the
> wrong end of the stick here?
>
> If it is just a question of someone extracting it, I've done so, and
> if you want me to send it along, I can.  If I'm completely
> misunderstanding the problem, I'd be interested to hear about that,
> too.
>
> (Why do I care?  Mostly, I don't want to duplicate ASM's code in my
> little OSS ASM project.)
>
> Jeremy
>
>
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