8275049: [ZGC] missing null check in ZNMethod::log_register

[TheRealMDoerr]

Clean backport of JDK-8275049.

---

Progress

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

Issue

• JDK-8275049: [ZGC] missing null check in ZNMethod::log_register

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk17u pull/195/head:pull/195
$ git checkout pull/195

Update a local copy of the PR:
$ git checkout pull/195
$ git pull https://git.openjdk.java.net/jdk17u pull/195/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 195

View PR using the GUI difftool:
$ git pr show -t 195

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk17u/pull/195.diff

[bridgekeeper]

👋 Welcome back mdoerr! 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 from the original commit.

[openjdk]

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

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

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

8275049: [ZGC] missing null check in ZNMethod::log_register

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[mlbridge]

Webrevs

• 00: Full (2b70f642)

[TheRealMDoerr]

/integrate

[openjdk]

Going to push as commit 8cb9634.
Since your change was applied there have been 9 commits pushed to the master branch:

• 451611f: 8274401: C2: GraphKit::load_array_element bypasses Access API
• 61a56e3: 8274770: [PPC64] resolve_jobject needs a generic implementation to support load barriers
• b0e49bb: 8271855: [TESTBUG] Wrong weakCompareAndSet assumption in UnsafeIntrinsicsTest
• 8b62d54: 8274550: c2i entry barriers read int as long on PPC
• 6dbb3d0: 8274773: [TESTBUG] UnsafeIntrinsicsTest intermittently fails on weak memory model platform
• efdf411: 8272720: Fix the implementation of loop unrolling heuristic with LoopPercentProfileLimit
• ddb89c3: 8275131: Exceptions after a touchpad gesture on macOS
• 01f4883: 8275051: Shenandoah: Correct ordering of requested gc cause and gc request flag
• 9751b8f: 8273614: Shenandoah: intermittent timeout with ConcurrentGCBreakpoint tests

Your commit was automatically rebased without conflicts.

[openjdk]

@TheRealMDoerr Pushed as commit 8cb9634.

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