Integrated: 8321387: SegmentAllocator:allocateFrom(AddressLayout, MemorySegment) does not throw stated UnsupportedOperationException

[Per Minborg]

On Wed, 6 Dec 2023 13:52:37 GMT, Per Minborg <pminborg at openjdk.org> wrote:

> This PR proposes to change the exception type for exceptions thrown for certain methods with a parameter of type `MemorySegment` when it is `MemorySegment::isReadOnly`. Previously an `UnsupportedOperationException` was specified but in some cases, in reality, an `IllegalArgumentException` was thrown. 
> 
> The principle used in this PR is that operations acting on an MS where the MS is `this` should throw an `UnsupportedOperationException` whereas in cases where the MS is a *parameter* an `IllegalArgumentException` should be thrown.
> 
> It should be noted that this PR retains the previous behavior for MS VarHandle access (even though the MS is a parameter to the accessor methods, the first parameter can be said to represent `this`).

This pull request has now been integrated.

Changeset: d13302f8
Author:    Per Minborg <pminborg at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/d13302f8b06f65319426a25a9368abaf72f3c247
Stats:     103 lines in 10 files changed: 67 ins; 4 del; 32 mod

8321387: SegmentAllocator:allocateFrom(AddressLayout, MemorySegment) does not throw stated UnsupportedOperationException

Reviewed-by: mcimadamore

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PR: https://git.openjdk.org/jdk/pull/16993