8275868: ciReplay: Inlining fails with "unloaded signature classes" due to wrong protection domains

[chhagedorn]

Replay compilation can fail to inline a method which was inlined in the normal run due to unresolved classes in the signature of an inlinee. The reason is that ciReplay is not resolving Java API classes with the protection domain of the holder class of the method to be replay compiled. Compiler replay is currently only resolving classes without a protection domain (i.e. an empty handle):

jdk/src/hotspot/share/ci/ciReplay.cpp

Lines 139 to 142 in 593401f

	CompileReplay(const char* filename, TRAPS) {
	_thread = THREAD;
	_loader = Handle(_thread, SystemDictionary::java_system_loader());
	_protection_domain = Handle();

A more detailed description can be found in the description of JDK-8275868.

This patch fixes that and takes the protection domain of the holder class of the method to be compiled to resolve all other classes used for ciReplay. The unloaded classes check is done in ciMethod::has_unloaded_classes_in_signature() and bypasses the whitelist introduced by JDK-8262912. However, this is fine since the inlining decision is enforced by the inlining information in the replay file.

To test the various scenarios mentioned in the description of JDK-8275868, I've added some support to use DumpReplay to not require a crash. I parse the inlining information from the hotspot log file to check that ciReplay applies the same inlining decisions as the normal run.

Thanks,
Christian

---

Progress

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Issue

• JDK-8275868: ciReplay: Inlining fails with "unloaded signature classes" due to wrong protection domains

Reviewers

• Vladimir Kozlov (@vnkozlov - Reviewer)
• Dean Long (@dean-long - Reviewer)
• Tobias Hartmann (@TobiHartmann - Reviewer)

Reviewing

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[bridgekeeper]

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[openjdk]

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[mlbridge]

Webrevs

• 00: Full (9e0d1140)

[vnkozlov]

Good.

[openjdk]

@chhagedorn 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:

8275868: ciReplay: Inlining fails with "unloaded signature classes" due to wrong protection domains

Reviewed-by: kvn, dlong, thartmann

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 180 new commits pushed to the master branch:

• 158831e: 8274320: os::fork_and_exec() should be using posix_spawn
• bf2e9ee: 8275080: G1CollectedHeap::expand() returns the wrong value
• b7104ba: 8196017: java/awt/Mouse/GetMousePositionTest/GetMousePositionWithPopup.java fails
• 6875678: 8273831: PrintServiceLookup spawns 2 threads in the current classloader, getting orphaned
• 5bbc8d3: 8274621: NullPointerException because listenAddress[0] is null
• 5021a12: 8274855: vectorapi tests failing with assert(!vbox->is_Phi()) failed
• fe6a202: 8271356: Modify jdb to treat an empty command as a repeat of the previous command
• cef9db9: 8276039: Remove unnecessary qualifications of java_lang_Class::
• 13265f9: 8274750: java/io/File/GetXSpace.java failed: '/dev': 191488 != 190976
• 5facaa2: 8276128: (bf) Remove unused constant ARRAY_BASE_OFFSET from Direct-X-Buffer
• ... and 170 more: https://git.openjdk.java.net/jdk/compare/9d191fce55fa70d6a2affc724fad57b0e20e4bde...master

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.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

[chhagedorn]

Thanks Vladimir and Dean for your reviews!

[TobiHartmann]

Looks good to me too. Nice test!

[chhagedorn]

Thanks Tobias for your review!

[chhagedorn]

/integrate

[openjdk]

Going to push as commit 5bb1992.
Since your change was applied there have been 180 commits pushed to the master branch:

• 158831e: 8274320: os::fork_and_exec() should be using posix_spawn
• bf2e9ee: 8275080: G1CollectedHeap::expand() returns the wrong value
• b7104ba: 8196017: java/awt/Mouse/GetMousePositionTest/GetMousePositionWithPopup.java fails
• 6875678: 8273831: PrintServiceLookup spawns 2 threads in the current classloader, getting orphaned
• 5bbc8d3: 8274621: NullPointerException because listenAddress[0] is null
• 5021a12: 8274855: vectorapi tests failing with assert(!vbox->is_Phi()) failed
• fe6a202: 8271356: Modify jdb to treat an empty command as a repeat of the previous command
• cef9db9: 8276039: Remove unnecessary qualifications of java_lang_Class::
• 13265f9: 8274750: java/io/File/GetXSpace.java failed: '/dev': 191488 != 190976
• 5facaa2: 8276128: (bf) Remove unused constant ARRAY_BASE_OFFSET from Direct-X-Buffer
• ... and 170 more: https://git.openjdk.java.net/jdk/compare/9d191fce55fa70d6a2affc724fad57b0e20e4bde...master

Your commit was automatically rebased without conflicts.

[openjdk]

@chhagedorn Pushed as commit 5bb1992.

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