RFR: 8261030: Avoid loading GenerateJLIClassesHelper at runtime

[Mandy Chung]

On Wed, 3 Feb 2021 12:08:58 GMT, Claes Redestad <redestad at openjdk.org> wrote:

> This moves the tracing methods added to GenerateJLIClassesHelper in JDK-8252725 to MethodHandleStatics, which avoids loading at runtime some code meant for jlink.

Marked as reviewed by mchung (Reviewer).

src/java.base/share/classes/java/lang/invoke/MethodHandleStatics.java line 68:

> 66:     // classes that have been or could have be pre-generated
> 67:     static final String LF_RESOLVE = "[LF_RESOLVE]";
> 68:     static final String SPECIES_RESOLVE = "[SPECIES_RESOLVE]";

It is okay with me to simply hardcode these strings in GenerateJLIClassesHelper and the trace methods.

src/java.base/share/classes/java/lang/invoke/MethodHandleStatics.java line 121:

> 119: 
> 120:     /*non-public*/
> 121:     static void traceLambdaForm(String name, MethodType type, Class<?> holder, MemberName resolvedMember) {

It'd be help to add a comment describing what these trace methods are for.

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PR: https://git.openjdk.java.net/jdk/pull/2376