On Thu, 14 Aug 2025 12:19:58 GMT, Albert Mingkun Yang <ay...@openjdk.org> wrote:
>> Looked closer at the users of this and one user is >> `ThreadMXBean.getThreadCpuTime(long id)`. Looking at the API docs for that, >> returning -1 is not a error but the expected result for a terminated thread. >> So I think we should remove these warnings. > >> ... it might happen from time to time without it being a very big deal? > > My concern is that we get a number on cpu-time without knowing the number is > off by a large margin when failure occurs, so there should probably be some > warning/msg somewhere. I don't sample GC threads that have terminated, so I would prefer not having the warning as well, as it would not fail unless the machine is in a bad state and then we would have larger issues at hand anyways? ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/26621#discussion_r2276583734