RFR: 8347408: Create an internal method handle adapter for system calls with errno [v7]

[Per Minborg]

On Tue, 14 Jan 2025 06:29:36 GMT, David Holmes <dholmes at openjdk.org> wrote:

> Where do you actually make the native call and grab the errno/last-error value?

So, as we foresee the adoption of the FFM API in the JDK internals, we will use such a mechanism for system calls like `fopen`, `socket`, and the like. 

See https://github.com/openjdk/jdk/pull/22307 for example.

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PR Comment: https://git.openjdk.org/jdk/pull/22391#issuecomment-2589211900