RFR: 8294961: java.base java.lang.reflect.ProxyGenerator uses ASM to generate proxy classes [v3]
Adam Sotona
asotona at openjdk.org
Thu Mar 9 17:30:56 UTC 2023
On Sun, 19 Feb 2023 05:23:20 GMT, liach <duke at openjdk.org> wrote:
>> Adam Sotona has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains six additional commits since the last revision:
>>
>> - j.l.r.ProxyGenerator improvements
>> Author: Mandy Chung <mchung at openjdk.org>
>> - Merge branch 'JDK-8294982' into JDK-8294961
>> - j.l.r.ProxyGenerator fix - Classfile API moved under jdk.internal.classfile package
>> - Merge branch 'JDK-8294982' into JDK-8294961
>> - Merge branch 'JDK-8294982' into JDK-8294961
>> - 8294961: java.base java.lang.reflect.ProxyGenerator uses ASM to generate proxy classes
>
> src/java.base/share/classes/java/lang/reflect/ProxyGenerator.java line 661:
>
>> 659: */
>> 660: private void generateMethod(ClassBuilder clb, ClassDesc className) {
>> 661: MethodTypeDesc desc = MethodType.methodType(returnType, parameterTypes).describeConstable().orElseThrow();
>
> Can we convert this line to:
>
> MethodTypeDesc desc = MethodTypeDesc.of(toClassDesc(returnType), Arrays.stream(parameterTypes).map(ProxyGenerator::toClassDesc).toArray(ClassDesc[]::new));
>
>
> Mainly due to that `MethodType` creation involves a lot of unrelated process such as generating lambda forms, and we can remove the `MethodType` import as a result.
Isn't the "unrelated process such as generating lambda forms" critical for the `ProxyGenerator` functionality?
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PR: https://git.openjdk.org/jdk/pull/10991
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