I noticed when looking at the code that there was no real need to use a CHM to perform the tracking of activation in an ordered fashion on ForEachOrderedTask, but instead a VarHandle can be used, reducing allocations and indirection.
------------- Commit messages: - JDK-8302666: Replace CHM with VarHandle in ForeachOrderedTask Changes: https://git.openjdk.org/jdk/pull/12320/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12320&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8302666 Stats: 25 lines in 1 file changed: 17 ins; 5 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/12320.diff Fetch: git fetch https://git.openjdk.org/jdk pull/12320/head:pull/12320 PR: https://git.openjdk.org/jdk/pull/12320