RFR: JDK-8306112 Implementation of JEP 445: Flexible Main Methods and Anonymous Main Classes (Preview) [v2]

[Jim Laskey]

On Thu, 27 Apr 2023 18:00:38 GMT, Jim Laskey <jlaskey at openjdk.org> wrote:

>> src/java.base/share/native/libjli/java.c line 590:
>> 
>>> 588:         CHECK_EXCEPTION_NULL_LEAVE(mainID);
>>> 589:         (*env)->CallVoidMethod(env, mainObject, mainID);
>>> 590:         break;
>> 
>> This calls into LauncherHelper to get the "main type", then calls the static or new/instance method. I'm wondering if you tried have a single entry point in LauncherHelper instead. I think the only downside might be that the trampoline would show up in stack traces but @Hidden could hide that.
>
> Good idea. If @hidden doesn't work then we can eat the trace entries.

Many dependencies (ex. JDI) on main being the first frame. Will set up a separate RFE witch should include using the LauncherHelper in the source code launcher.

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PR Review Comment: https://git.openjdk.org/jdk/pull/13689#discussion_r1181532559