> HeapDumper dumps virtual threads in 2 places: > - dumping platform threads (mounted virtual threads are dumped as separate > thread object); > - dumping heap objects when the object is `java.lang.VirtualThread`. > > In the 2nd case mounted virtual threads should be skipped (as they are > already dumped with correct stack traces/stack references) > Check that a virtual thread is mounted is non-trivial, method from > JvmtiEnvBase was used for this. > > Testing: tier1..3, heapdump-related tests: > open/test/hotspot/jtreg/serviceability,open/test/hotspot/jtreg/runtime/ErrorHandling,open/test/hotspot/jtreg/gc/epsilon,open/test/jdk/sun/tools/jhsdb
Alex Menkov has updated the pull request incrementally with one additional commit since the last revision: feedback: reimplemented ThreadDumpe::is_vthread_mounted() ------------- Changes: - all: https://git.openjdk.org/jdk/pull/17134/files - new: https://git.openjdk.org/jdk/pull/17134/files/3fc64e3a..0afd2a4f Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=17134&range=01 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17134&range=00-01 Stats: 11 lines in 1 file changed: 9 ins; 1 del; 1 mod Patch: https://git.openjdk.org/jdk/pull/17134.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/17134/head:pull/17134 PR: https://git.openjdk.org/jdk/pull/17134
