[jdk25u] RFR: 8360791: [ubsan] Adjust signal handling

[Matthias Baesken]

8360791: [ubsan] Adjust signal handling

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Commit messages:
 - Backport aeca49e43fab951c2031895fee32703fb4a19524

Changes: https://git.openjdk.org/jdk25u/pull/48/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk25u&pr=48&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8360791
  Stats: 4 lines in 1 file changed: 3 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk25u/pull/48.diff
  Fetch: git fetch https://git.openjdk.org/jdk25u.git pull/48/head:pull/48

PR: https://git.openjdk.org/jdk25u/pull/48