RFR: 8319206: [REDO] Event NativeLibraryLoad breaks invariant by taking a stacktrace when thread is in state _thread_in_native

[Markus Grönlund]

Greetings,

The original problem was introduced with:

[JDK-8313251](https://bugs.openjdk.org/browse/JDK-8313251) - Add NativeLibraryLoad event

The first attempt at resolution:

[JDK-8315220](https://bugs.openjdk.org/browse/JDK-8315220) - Event NativeLibraryLoad breaks invariant by taking a stacktrace when thread is in state _thread_in_native

was reverted:

[JDK-8315930](https://bugs.openjdk.org/browse/JDK-8315930) - Revert "8315220: Event NativeLibraryLoad breaks invariant by taking a stacktrace when thread is in state _thread_in_native"

because it ran into:

[JDK-8315892](https://bugs.openjdk.org/browse/JDK-8315892) - NativeLibraryLoadEvent dtr fails with "assert(false) failed: Possible safepoint reached by thread that does not allow it"

The reason for [JDK-8315892](https://bugs.openjdk.org/browse/JDK-8315892) was that the thread loading the zip library, in thread state native, was the owner of the Zip_lock mutex. This prevented it from transitioning to thread_in_vm.

The Zip_lock mutex was removed as part of:

[JDK-8317951](https://bugs.openjdk.org/browse/JDK-8317951) - Refactor loading of zip library to help resolve [JDK-8315220](https://bugs.openjdk.org/browse/JDK-8315220)

Therefore, it is time to redo the original [JDK-8315220](https://bugs.openjdk.org/browse/JDK-8315220), now under this issue, [JDK-8319206](https://bugs.openjdk.org/browse/JDK-8319206).

Testing: jdk_jfr, tiers1-6, stress testing

Thanks
Markus

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Commit messages:
 - 8319206

Changes: https://git.openjdk.org/jdk/pull/16447/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16447&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8319206
  Stats: 395 lines in 10 files changed: 243 ins; 114 del; 38 mod
  Patch: https://git.openjdk.org/jdk/pull/16447.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/16447/head:pull/16447

PR: https://git.openjdk.org/jdk/pull/16447