RFR: 8291360: Create entry points to expose low-level class file information

[Roger Riggs]

On Sat, 30 Jul 2022 07:45:31 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> It is usual for the Java code to do such checks and throw exceptions, so that the VM assumes it is correct and only asserts incase something has been missed on the Java side.
>
> Though in this case the Java code has defined behaviour for array types so it is correct for the VM to assume this is not an array type and to assert if it is.

My companion question was whether the native code can for efficiently map from array class to component type than Java.

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PR: https://git.openjdk.org/jdk/pull/9688