RFR: 8309196: Remove Thread.countStackFrames [v3]
Alan Bateman
alanb at openjdk.org
Thu Jun 8 16:46:20 UTC 2023
> Thread.countStackFrames is/was an ill-defined method that dates from JDK 1.0 for counting the stack frames of a suspended Thread. The method was deprecated in JDK 1.2 (1998), deprecated for removal in Java 9, and re-specified/degraded to throw UOE unconditionally in Java 14. Java 22 would be a fine time to finally remove this method.
>
> Code that wants to count stack frames should be directed to use j.l.StackWalker, or if a tool, then it can use JVM TI and other tool APIs.
>
> A corpus analysis of 30M classes in 131k artifacts from Maven Central found only 1 usages to this method. The 1 usage appears to be a class that just wraps all methods, it doesn't actually make use of it.
Alan Bateman has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:
- Merge
- Merge
- Initial commit
-------------
Changes:
- all: https://git.openjdk.org/jdk/pull/14257/files
- new: https://git.openjdk.org/jdk/pull/14257/files/e44c3c49..b784ff83
Webrevs:
- full: https://webrevs.openjdk.org/?repo=jdk&pr=14257&range=02
- incr: https://webrevs.openjdk.org/?repo=jdk&pr=14257&range=01-02
Stats: 6494 lines in 82 files changed: 6315 ins; 50 del; 129 mod
Patch: https://git.openjdk.org/jdk/pull/14257.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/14257/head:pull/14257
PR: https://git.openjdk.org/jdk/pull/14257
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