RFR: 8286637: (fc) Memory mapped regions bigger than 2GB do not work correctly on Windows

[Jorn Vernee]

On Thu, 12 May 2022 19:15:23 GMT, Brian Burkhalter <bpb at openjdk.org> wrote:

> Cast the last parameter `dwNumberOfBytesToMap` of `MapViewOfFile()` to a `SIZE_T`, not a `DWORD`, to avoid truncation.

test/jdk/java/nio/channels/FileChannel/LargeMapTest.java line 25:

> 23: 
> 24: import jdk.incubator.foreign.MemorySegment;
> 25: import jdk.incubator.foreign.ResourceScope;

Note that the JEP has just been integrated as well, so this package no longer exists. It should be `java.lang.foreign` now. `ResourceScope` was renamed to `MemorySession`, `newSharedScope` should now be `openShared`, and the test will need `@enablePreview` as well.

(I think that's all that's needed)

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PR: https://git.openjdk.java.net/jdk/pull/8686