Port of: https://github.com/openjdk/panama-foreign/pull/827
------------- Commit messages: - 8303831: TestSegmentCopy times out Changes: https://git.openjdk.org/jdk/pull/13741/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13741&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8307164 Stats: 140 lines in 1 file changed: 28 ins; 42 del; 70 mod Patch: https://git.openjdk.org/jdk/pull/13741.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/13741/head:pull/13741 PR: https://git.openjdk.org/jdk/pull/13741
