RFR: 8323832: Load JVMCI with the platform class loader [v2]

[David Holmes]

On Wed, 24 Jan 2024 08:46:08 GMT, Doug Simon <dnsimon at openjdk.org> wrote:

>> test/hotspot/jtreg/compiler/jvmci/LoadAlternativeJVMCI.java line 54:
>> 
>>> 52: 
>>> 53:         ClassLoader pcl = ClassLoader.getPlatformClassLoader();
>>> 54:         URLClassLoader ucl = new URLClassLoader(cp, null);
>> 
>> I am missing something here, a `URLClassLoader` first delegates to its parent before searching its URLs, so how does this not find the platform loader versions of the JVMCI classes?
>
> With `new URLClassLoader(cp, null)`, the URL loader delegates directly to the boot loader, by-passing the platform loader.

<face-palm>

Thanks Doug.

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PR Review Comment: https://git.openjdk.org/jdk/pull/17520#discussion_r1464798827