[9] RFR (S): 8032400: JSR292: invokeSpecial: InternalError attempting to lookup a method

John Rose john.r.rose at oracle.com
Thu Jun 5 23:17:20 UTC 2014


This is not a requirement, but I would prefer (in general) to see less test logic in ASM-generated bytecode and more in Java.  I am guessing that the invokeExact call could have been replaced by a simple weakly-typed invoke call in the framing code, and likewise with most of the other invokes (methodType, findSpecial) which are not caller-sensitive.

— John

On Jun 5, 2014, at 3:25 PM, Vladimir Ivanov <vladimir.x.ivanov at oracle.com> wrote:

> Thanks for review, Paul.
>> Looks ok.
>> The behaviour of MethodHandles.Lookup.findSpecial got me confused for a while :-)
>> Minor point: is it also worth exposing a T3.lookup() method and on the returned Lookup calling findSpecial(T1.class, "m", MethodType.methodType(int.class), T3.class).invokeExact() to ensure the programmatic path also works?
> Good point. Updated webrev:
> http://cr.openjdk.java.net/~vlivanov/8032400/webrev.01/
> Best regards,
> Vladimir Ivanov
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