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From Jeff Hair <>
Subject Re: [Javaflow] Weird ClassCastException and ClassNotFoundExceptions during build
Date Mon, 27 Jun 2011 15:28:19 GMT
I will try your suggestions. In the meantime, can you point me to how I
would go about converting this problem to a test case? I'm not even sure if
I can reproduce it yet. I haven't been able to identify what specifically
caused the problem. My original coroutine prototype was using a <String,
Continuation> map where the "yield statement" (a method call) would just
yield to a continuation identified by a string name. I copied that logic
verbatim, basically just changing the types. Of course, there's a lot more
going on in the interpreter, so it's probably something to do with that.

On Mon, Jun 27, 2011 at 3:03 AM, Torsten Curdt <> wrote:

> Hey Jeff,
> the good news - I was able to reproduce it with your code base.
> Both the exceptions during rewrite and the exception during resume.
> I haven't looked at the ASM code in a long time. Seems like there is
> something fishy going on. Maybe the exceptions prevent proper
> instrumentation. I would have to dig into that.
> There a couple of things you can try.
> - Try the ClassLoader based rewriting to see if you still get the
> exceptions
> - Question is why the classes cannot be found. Check the classpath.
> - Give the old BCEL rewriting a try. Just to compare the results.
> Either way - a test case that can reproduce this in the javaflow tests
> would make it much easier for me to help you out.
> cheers,
> Torsten
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