jcstress_BoundedSingleTest_0_FAILED NullPointerException: Cannot read field "sync" because "this" is null

[JasonFengJ9]

Failure link

From an internal build(paix823):

openjdk version "19.0.1" 2022-10-18
IBM Semeru Runtime Open Edition 19.0.1+10 (build 19.0.1+10)
Eclipse OpenJ9 VM 19.0.1+10 (build master-a2475ea96, JRE 19 AIX ppc64-64-Bit Compressed References 20221018_15 (JIT enabled, AOT enabled)
OpenJ9   - a2475ea96
OMR      - 7d8ea8b6b
JCL      - 5168276e58 based on jdk-19.0.1+10)

Rerun in Grinder - Change TARGET to run only the failed test targets.

Optional info

Failure output (captured from console output)

[2023-01-01T02:13:10.943Z] variation: NoOptions
[2023-01-01T02:13:10.943Z] JVM_OPTIONS:  

[2023-01-01T02:16:44.483Z]     Unrecoverable error while running
[2023-01-01T02:16:44.483Z]     java.lang.NullPointerException: Cannot read field "sync" because "this" is null
[2023-01-01T02:16:44.483Z]     	at java.base/java.util.concurrent.CountDownLatch.countDown(CountDownLatch.java:290)
[2023-01-01T02:16:44.483Z]     	at org.openjdk.jcstress.tests.countdownlatch.racy.BoundedSingleTest.actor1(BoundedSingleTest.java:60)
[2023-01-01T02:16:44.483Z]     	at org.openjdk.jcstress.tests.countdownlatch.racy.BoundedSingleTest_jcstress.run_actor1(BoundedSingleTest_jcstress.java:256)
[2023-01-01T02:16:44.483Z]     	at org.openjdk.jcstress.tests.countdownlatch.racy.BoundedSingleTest_jcstress.task_actor1(BoundedSingleTest_jcstress.java:239)
[2023-01-01T02:16:44.483Z]     	at org.openjdk.jcstress.tests.countdownlatch.racy.BoundedSingleTest_jcstress.access$100(BoundedSingleTest_jcstress.java:19)
[2023-01-01T02:16:44.483Z]     	at org.openjdk.jcstress.tests.countdownlatch.racy.BoundedSingleTest_jcstress$6.internalRun(BoundedSingleTest_jcstress.java:156)
[2023-01-01T02:16:44.483Z]     	at org.openjdk.jcstress.infra.runners.CounterThread.run(CounterThread.java:38)

[2023-01-01T02:16:45.162Z] jcstress_BoundedSingleTest_0_FAILED

This is a new test added on Dec. 2022, and didn't pass before.

Similar failures: jcstress_UnboundedSingleTest_0_FAILED

Also occurred at JDK17

[pshipton]

@JasonFengJ9 all the failures seem to be on AIX. Is the test running and passing on other platforms?

[JasonFengJ9]

all the failures seem to be on AIX. Is the test running and passing on other platforms?

Added AIX label, the test in question passed in other platforms.

[pshipton]

@llxia fyi @JasonFengJ9 does this pass on OpenJDK?

[JasonFengJ9]

does this pass on OpenJDK?

13:07:04  openjdk version "19.0.1-beta" 2022-10-18
13:07:04  OpenJDK Runtime Environment Temurin-19+36-202210180349 (build 19.0.1-beta+36-202210180349)
13:07:04  OpenJDK 64-Bit Server VM Temurin-19+36-202210180349 (build 19.0.1-beta+36-202210180349, mixed mode)

5x grinder w/ RI all passed

Note: this is a temurin build on Oct. 2022, there are no newer JDK19 AIX nightly builds available.

10x grinder w/ latest JDK17 temurin nightly - all passed

14:05:23  openjdk version "17.0.6-beta" 2023-01-17
14:05:23  OpenJDK Runtime Environment Temurin-17.0.6+9-202301032339 (build 17.0.6-beta+9-202301032339)

[pshipton]

I was just about to ask for 17 but I see it's been added to the previous comment.

[pshipton]

I see 17 Temurin passed as well.

[pshipton]

I don't know what component is at fault. @JasonFengJ9 can you try one more on OpenJ9 with -Xint pls.

[JasonFengJ9]

JDK17 -Xint 10x grinder - all passed

[0xdaryl]

Moving out to 0.40.

@zl-wang : since this issue only appeared on AIX could you assign for investigation please?

[zl-wang]

@midronij please take a look ...

[0xdaryl]

Moving to 0.41.

[hzongaro]

@midronij, when you have the opportunity, may I ask you to provide an update on the investigation of this problem? I'll move this to the 0.43 release in the meanwhile.

[midronij]

@hzongaro very sorry for the delay. Unfortunately, as I've been occupied with other work, I haven't had much chance to investigate this issue in earnest. If it's alright, I will pick this item back up again as soon as I'm able.

[zl-wang]

@bhavanisn please take this over (at lower priority)