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I'm adding support for instrumenting invokedynamic in a concolic engine and the way we currently instrument is by using a custom classloader that finds the resource related to that class in the class path but as the lambda is a synthetic class created on the fly it's not actually there.

Do you know how to instrument invoke dynamic generated classes? I've seen that using agents may be an option but i want to be sure that i can't reuse what I already have.

Peter Cordes
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Ignacio Lebrero
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    Those generated classes are simple, and just invoke an other method that you probably did already implement. – Johannes Kuhn Dec 01 '20 at 07:44
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    You can’t instrument those generated classes, neither statically nor using agents, and there’s no point in trying. The body of the lambda expression is not part of the generated class. – Holger Dec 01 '20 at 09:16

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