[jdk17u-dev] RFR: 8273369: Computing micros between two instants unexpectedly overflows for some cases

Thu Nov 13 20:00:16 UTC 2025

Backporting JDK-8273369: Computing micros between two instants unexpectedly overflows for some cases. Avoids overflow by not calling nanosUntil() directly, which will overflow beyond Long.MAX_VALUE difference in nano unit.

Ran GHA Sanity Checks (passed) and related test (passed).

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Commit messages:
 - Backport 81d2acee57188a4507c798b46b0bd129dc302fec

Changes: https://git.openjdk.org/jdk17u-dev/pull/4181/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=4181&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8273369
  Stats: 61 lines in 3 files changed: 46 ins; 0 del; 15 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/4181.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/4181/head:pull/4181

PR: https://git.openjdk.org/jdk17u-dev/pull/4181