The vmTestbase/nsk/jvmti/scenarios/sampling is updated to run testing in the
virtual threads when virtual thread test factory is enabled.
The ThreadWrapper is helper class that allows tests execute not only main
thread but other threads as virtual threads.
It is useful for the pattern
`class MyThread extends Thread {...}`
The plan is to convert more tests focusing on serviceability tests. Helps to
run more jvmti functions for virtual threads.
Please note that some tests are still not updated because it requires
significant efforts to redesign them. The goal is to update the only simple
cases.
-------------
Commit messages:
- more jvmti scenarious tests updated
- copyrights updated
- tests updated
Changes: https://git.openjdk.org/jdk/pull/30591/files
Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=30591&range=00
Issue: https://bugs.openjdk.org/browse/JDK-8381658
Stats: 529 lines in 77 files changed: 348 ins; 0 del; 181 mod
Patch: https://git.openjdk.org/jdk/pull/30591.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/30591/head:pull/30591
PR: https://git.openjdk.org/jdk/pull/30591
