> Since [JDK-8389325](https://bugs.openjdk.org/browse/JDK-8389325) > `ObjectMonitor::_metadata` only contains a copy of the object’s hash code. > But: > > 1. A `ObjectMonitorTable` lookup get the hash directly from the object’s mark > word, and ... > 2. ... no synchronization code uses the copy stored in the monitor. > > Therefore this PR removes the redundant `_metadata` field and its related > metadata/hash accessors, diagnostics, and serviceability support. > > Passes tier1-5 tests successfully on supported platforms. > > --------- > - [x] I confirm that I make this contribution in accordance with the [OpenJDK > Interim AI Policy](https://openjdk.org/legal/ai).
Fredrik Bredberg has updated the pull request incrementally with one additional commit since the last revision: Updated after review ------------- Changes: - all: https://git.openjdk.org/jdk/pull/32573/files - new: https://git.openjdk.org/jdk/pull/32573/files/1efa2c3a..72ab23dd Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=32573&range=01 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=32573&range=00-01 Stats: 25 lines in 3 files changed: 0 ins; 24 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/32573.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/32573/head:pull/32573 PR: https://git.openjdk.org/jdk/pull/32573
