This PR proposes to use `JavaNioAccess::getBufferAdress` rather than `DirectBuffer::address` so that `Buffer` instances backed by MemorySegment instances can be used in classes that were not covered by https://github.com/openjdk/jdk/pull/25321
In some of the cases, this is not strictly needed as the internal cache in `sun.nio.ch.Util#getTemporaryDirectBuffer` is (currently) only returning Buffers that are not backed by a `MemorySegment`. Also, we now always acquire/release buffer sessions before interacting with memory. Again, this is not always needed for temporary direct buffers but provides a consistent handling of buffers at a minimal cost. This PR passes tier1, tier2, and tier3 tests on multiple platforms and configurations. ------------- Commit messages: - Remove import - Remove comment - Use getBufferAddress() rather than address() Changes: https://git.openjdk.org/jdk/pull/25324/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=25324&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8357268 Stats: 93 lines in 16 files changed: 32 ins; 0 del; 61 mod Patch: https://git.openjdk.org/jdk/pull/25324.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/25324/head:pull/25324 PR: https://git.openjdk.org/jdk/pull/25324
