Explicitly handle UpcallStub allocation failures by terminating. We currently might try to use the returned `nullptr` which would fail sooner or later. This patch just makes the termination explicit.
------------- Commit messages: - Merge branch 'master' into UpcallStubAllocFailure - remove unused import - add timeout - reduce code cache size in test - fix copyright header formatting - Explicitly handle upcall stub allocation failure Changes: https://git.openjdk.org/jdk/pull/16311/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16311&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8318586 Stats: 87 lines in 4 files changed: 80 ins; 2 del; 5 mod Patch: https://git.openjdk.org/jdk/pull/16311.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/16311/head:pull/16311 PR: https://git.openjdk.org/jdk/pull/16311