[lworld] RFR: JDK-8271556: [lworld] java.lang.BootstrapMethodError in .equals() for primitive record

[Mandy Chung]

On Thu, 12 Aug 2021 21:35:13 GMT, Jesper Steen Møller <jespersm at openjdk.org> wrote:

>> We want the default choice is to use the primary L-type mirror and only
>> when there is a contextual need to make a distinction, the Q-type mirror will be an option.
>> 
>> The proposal is to always pass the primary mirror to the `recordClass` argument
>> and adjust the bootstrap code to drive method handle creation off of the primitive
>> value type of the record class instead of `recordClass`, using `recordClass` only
>> for getting the class name for `toString`.
>
> src/java.base/share/classes/java/lang/runtime/ObjectMethods.java line 340:
> 
>> 338:         Class<?> receiverType = recordClass.isPrimitiveClass() ? recordClass.asValueType() : recordClass;
>> 339: 
>> 340:         if (type instanceof MethodType) {
> 
> Nitpicking: Perhaps
> 
> if (type instanceof MethodType mType) {
>     methodType = mType;
>     if (mType.parameterType(0) != receiverType) {
> 
> ?

sure.  I may fix it in jdk repo directly.

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PR: https://git.openjdk.java.net/valhalla/pull/528