8212160: JVMTI agent crashes with "assert(_value != 0LL) failed: resolving NULL _value"

[kvergizova]

I'd like to backport 8212160 to 13u for parity with 11u.
The patch doesn't apply cleanly due to minor context differences in nmethod.cpp and serviceThread.cpp (JDK-8235273 and JDK-8170299 are not in 13u), reapplied manually.
Tested with tier1 and other jvmti tests.
Follow-up fixes JDK-8235456 and JDK-8236124 are planned to be backported as well.

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed

Issue

• JDK-8212160: JVMTI agent crashes with "assert(_value != 0LL) failed: resolving NULL _value"

Reviewers

• Yuri Nesterenko (@yan-too - Reviewer)

Download

$ git fetch https://git.openjdk.java.net/jdk13u-dev pull/87/head:pull/87
$ git checkout pull/87

[bridgekeeper]

👋 Welcome back evergizova! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

This backport pull request has now been updated with issue and summary from the original commit.

[mlbridge]

Webrevs

• 00: Full (ab01382)

[openjdk]

@kvergizova This change now passes all automated pre-integration checks.

After integration, the commit message for the final commit will be:

8212160: JVMTI agent crashes with "assert(_value != 0LL) failed: resolving NULL _value"

Add local deferred event list to thread to post events outside CodeCache_lock.

Reviewed-by: yan

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 9 new commits pushed to the master branch:

• 80f30ba: 8234687: change javap reporting on unknown attributes
• 62f79b1: 7146776: deadlock between URLStreamHandler.getHostAddress and file.Handler.openconnection
• 9be352b: 8255908: ExceptionInInitializerError due to UncheckedIOException while initializing cgroupv1 subsystem
• b070099: 8244819: hsdis does not compile with binutils 2.34+
• ad28e4f: 8226810: Failed to launch JVM because of NullPointerException occured on System.props
• 614325c: 8251257: NMT: jcmd VM.native_memory scale=1 crashes target VM
• 0bb1017: 8233027: OopMapSet::all_do does oms.next() twice during iteration
• b5c0f98: 8222079: Don't use memset to initialize fields decode_env constructor in disassembler.cpp
• be68489: 8232083: Minimal VM is broken after JDK-8231586

Please see this link for an up-to-date comparison between the source branch of this pull request and the master branch.
As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

As you do not have Committer status in this project an existing Committer must agree to sponsor your change. Possible candidates are the reviewers of this PR (@yan-too) but any other Committer may sponsor as well.

➡️ To flag this PR as ready for integration with the above commit message, type /integrate in a new comment. (Afterwards, your sponsor types /sponsor in a new comment to perform the integration).

[kvergizova]

/integrate

[openjdk]

@kvergizova
Your change (at version ab01382) is now ready to be sponsored by a Committer.

[yan-too]

/sponsor

[openjdk]

@yan-too @kvergizova Since your change was applied there have been 9 commits pushed to the master branch:

• 80f30ba: 8234687: change javap reporting on unknown attributes
• 62f79b1: 7146776: deadlock between URLStreamHandler.getHostAddress and file.Handler.openconnection
• 9be352b: 8255908: ExceptionInInitializerError due to UncheckedIOException while initializing cgroupv1 subsystem
• b070099: 8244819: hsdis does not compile with binutils 2.34+
• ad28e4f: 8226810: Failed to launch JVM because of NullPointerException occured on System.props
• 614325c: 8251257: NMT: jcmd VM.native_memory scale=1 crashes target VM
• 0bb1017: 8233027: OopMapSet::all_do does oms.next() twice during iteration
• b5c0f98: 8222079: Don't use memset to initialize fields decode_env constructor in disassembler.cpp
• be68489: 8232083: Minimal VM is broken after JDK-8231586

Your commit was automatically rebased without conflicts.

Pushed as commit 5c15783.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.