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

[David Holmes]

On Wed, 24 Jan 2024 08:56:10 GMT, Doug Simon <dnsimon at openjdk.org> wrote:

> As far as I understand, even a non-delegating classloader cannot redefine a class loaded by the boot loader. I modified the test to show this and get:
> 
> ```
> java.lang.LinkageError: loader LoadAlternativeJVMCI$1 @4a1f4d08 attempted duplicate class definition for jdk.vm.ci.meta.ResolvedJavaType. (jdk.vm.ci.meta.ResolvedJavaType is in unnamed module of loader LoadAlternativeJVMCI$1 @4a1f4d08, parent loader 'bootstrap')
> 	at java.base/java.lang.ClassLoader.defineClass1(Native Method)

Interesting. I'm not sure why that should be happening in this case. I can imagine a potential split-package issue with the bootloader that doesn't happen with the platform loader. I will look into it.

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PR Comment: https://git.openjdk.org/jdk/pull/17520#issuecomment-1907983591