RFR: 8367318: Test vmTestbase/nsk/jdi/MethodEntryRequest/addClassFilter_rt/filter_rt001/TestDescription.java timed out after passing

Thu Sep 18 18:10:49 UTC 2025

Fixed an issue with a race with two events coming in close to the same time, the first of which does not suspend any debuggee threads. More details in the first comment.

Tested by running all vmTestbase/nsk/jdi tests 25x times on all platforms both with and w/o virtual threads. Also ran all tier5 svc tests.

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Commit messages:
 - Fix issue with getting two events quickly

Changes: https://git.openjdk.org/jdk/pull/27370/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=27370&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8367318
  Stats: 15 lines in 2 files changed: 4 ins; 4 del; 7 mod
  Patch: https://git.openjdk.org/jdk/pull/27370.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/27370/head:pull/27370

PR: https://git.openjdk.org/jdk/pull/27370