> Is there a workaround for this issue? Would it be possible to use
> something like asm to dynamically modify X509CRLImpl and make it implement
> Serializable?


I would discourage against bytecode manipulation unless you have both
engineering and support experience with it. It's a fairly arcane art and
should not be undertaken lightly.

An alternative that is much more straightforward would be caching the
encoded bytes of the CRL, which is accessible via X509CRL#getEncoded().
Since byte arrays are perfectly serializable, this would work for both
memory and persistent caches.

I hadn't considered persistent caches in the original design, but it's a
perfectly reasonable use case. I'm open to a Jira improvement of caching
the encoded representation. It's worth noting that such a change comes at
the cost of additional CPU work to decode the bytes on every cache hit.
That said it's likely a worthwhile tradeoff generally since I would imagine
most CRLs are sizable and caching them in memory may be prohibitive.

M

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