Verification in agent transformers
Alan Bateman
alan.bateman at oracle.com
Fri Mar 7 18:42:57 UTC 2025
On 07/03/2025 17:28, Ryan Ernst wrote:
> When the transformer runs outside of retransformClasses, there is no VerifyError, yet the incompatible type existed (but it was unused, so did not trip a runtime problem, it was just a bad type sitting on the stack).
>
What does "outside of retransformClasses" mean? Is this static
instrumentation where classes in modules mapped to the boot loader are
instrumented and the jimage re-created with the modified classes, or is
this load time instrumentation?
-Alan
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