[jira] [Work logged] (AMQ-9448) RedeliveryPolicy causing lock in dispatcher
[
https://issues.apache.org/jira/browse/AMQ-9448?focusedWorklogId=921617=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-921617
]
ASF GitHub Bot logged work on AMQ-9448:
---
Author: ASF GitHub Bot
Created on: 01/Jun/24 06:55
Start Date: 01/Jun/24 06:55
Worklog Time Spent: 10m
Work Description: thezbyg commented on PR #1177:
URL: https://github.com/apache/activemq/pull/1177#issuecomment-2143330637
Yes. This is the stack trace of "JobScheduler:JMS" thread blocked by itself
due to acquiring read lock on store while iterating scheduled jobs in
mainLoop() method and then attempting to acquire write lock to write a new
scheduled job information:
`
"JobScheduler:JMS" #28 daemon prio=5 os_prio=0 cpu=11.62ms elapsed=117.73s
tid=0x7f43d1344b50 nid=0x185b waiting on condition [0x7f4356cfe000]
java.lang.Thread.State: WAITING (parking)
at jdk.internal.misc.Unsafe.park(java.base@17.0.8/Native Method)
- parking to wait for <0x8bd25150> (a
java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
at
java.util.concurrent.locks.LockSupport.park(java.base@17.0.8/LockSupport.java:211)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(java.base@17.0.8/AbstractQueuedSynchronizer.java:715)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(java.base@17.0.8/AbstractQueuedSynchronizer.java:938)
at
java.util.concurrent.locks.ReentrantReadWriteLock$WriteLock.lock(java.base@17.0.8/ReentrantReadWriteLock.java:959)
at
org.apache.activemq.store.kahadb.scheduler.JobSchedulerStoreImpl$8.visit(JobSchedulerStoreImpl.java:684)
at
org.apache.activemq.store.kahadb.data.KahaAddScheduledJobCommand.visit(KahaAddScheduledJobCommand.java:283)
at
org.apache.activemq.store.kahadb.scheduler.JobSchedulerStoreImpl.process(JobSchedulerStoreImpl.java:679)
at
org.apache.activemq.store.kahadb.AbstractKahaDBStore.store(AbstractKahaDBStore.java:495)
at
org.apache.activemq.store.kahadb.AbstractKahaDBStore.store(AbstractKahaDBStore.java:403)
at
org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.doSchedule(JobSchedulerImpl.java:252)
at
org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.schedule(JobSchedulerImpl.java:100)
at
org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.mainLoop(JobSchedulerImpl.java:782)
at
org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.run(JobSchedulerImpl.java:699)
at java.lang.Thread.run(java.base@17.0.8/Thread.java:833)
`
Full dump:
[dump.txt](https://github.com/user-attachments/files/15520722/dump.txt)
Issue Time Tracking
---
Worklog Id: (was: 921617)
Time Spent: 50m (was: 40m)
> RedeliveryPolicy causing lock in dispatcher
> ---
>
> Key: AMQ-9448
> URL: https://issues.apache.org/jira/browse/AMQ-9448
> Project: ActiveMQ Classic
> Issue Type: Bug
> Components: Broker
>Affects Versions: 5.18.3
> Environment: ubuntu-22.04
> corretto-17
>Reporter: Oliver Holzmann
>Priority: Critical
> Attachments: doNotFireJobsWhileStoreLockIsHeld.patch, jstack1.out
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> We are using ActiveMQ with redeliveryPolicy enabled:
> {code:java}
>
> redeliveryDelay="1000" />
> {code}
> When a message exceeds maximumRedeliveries the queue is "frozen". This means
> the consumers can't read any messages and qrowing the queue in web console
> causes error 504.
> A thread dump shows a blocked JobScheduler:JMS thread:
> {code:java}
> priority : 5
> thread Id : x7fb985664960
> native Id : xae
> state : BLOCKED
> StackTrace:
> "JobScheduler:JMS" #75 daemon prio=5 os_prio=0 cpu=478.63ms elapsed=757.29s
> tid=0x7fb985664960 nid=0xae waiting for monitor entry [0x7fb80def1000]
> java.lang.Thread.State: BLOCKED (on object monitor)
> at
> org.apache.activemq.broker.region.PrefetchSubscription.dispatchPending(PrefetchSubscription.java:647)
> waiting to lock <0x00077ebc62a0> (a java.lang.Object) locked
> <0x00077ebc6290> (a java.lang.Object)
> at
> org.apache.activemq.broker.region.PrefetchSubscription.add(PrefetchSubscription.java:159)
> at org.apache.activemq.broker.region.Queue.doActualDispatch(Queue.java:2208)
> at org.apache.activemq.broker.region.Queue.doDispatch(Queue.java:2156)
> at org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:2307)
> at org.apache.activemq.broker.region.Queue.iterate(Queue.java:1728) locked
> <0x00077ebc5178> (a java.lang.Object)
> at org.apache.activemq.broker.region.Queue.wakeup(Queue.java:1977)
> at org.apache.activemq.broker.region.Queue.messageSent(Queue.java:1971)
> at
>
[jira] [Work logged] (AMQ-9448) RedeliveryPolicy causing lock in dispatcher
[
https://issues.apache.org/jira/browse/AMQ-9448?focusedWorklogId=921576=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-921576
]
ASF GitHub Bot logged work on AMQ-9448:
---
Author: ASF GitHub Bot
Created on: 31/May/24 19:37
Start Date: 31/May/24 19:37
Worklog Time Spent: 10m
Work Description: mattrpav commented on PR #1177:
URL: https://github.com/apache/activemq/pull/1177#issuecomment-2142874447
Do you have a thread dump of the deadlock occurring?
Issue Time Tracking
---
Worklog Id: (was: 921576)
Time Spent: 40m (was: 0.5h)
> RedeliveryPolicy causing lock in dispatcher
> ---
>
> Key: AMQ-9448
> URL: https://issues.apache.org/jira/browse/AMQ-9448
> Project: ActiveMQ Classic
> Issue Type: Bug
> Components: Broker
>Affects Versions: 5.18.3
> Environment: ubuntu-22.04
> corretto-17
>Reporter: Oliver Holzmann
>Priority: Critical
> Attachments: doNotFireJobsWhileStoreLockIsHeld.patch, jstack1.out
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> We are using ActiveMQ with redeliveryPolicy enabled:
> {code:java}
>
> redeliveryDelay="1000" />
> {code}
> When a message exceeds maximumRedeliveries the queue is "frozen". This means
> the consumers can't read any messages and qrowing the queue in web console
> causes error 504.
> A thread dump shows a blocked JobScheduler:JMS thread:
> {code:java}
> priority : 5
> thread Id : x7fb985664960
> native Id : xae
> state : BLOCKED
> StackTrace:
> "JobScheduler:JMS" #75 daemon prio=5 os_prio=0 cpu=478.63ms elapsed=757.29s
> tid=0x7fb985664960 nid=0xae waiting for monitor entry [0x7fb80def1000]
> java.lang.Thread.State: BLOCKED (on object monitor)
> at
> org.apache.activemq.broker.region.PrefetchSubscription.dispatchPending(PrefetchSubscription.java:647)
> waiting to lock <0x00077ebc62a0> (a java.lang.Object) locked
> <0x00077ebc6290> (a java.lang.Object)
> at
> org.apache.activemq.broker.region.PrefetchSubscription.add(PrefetchSubscription.java:159)
> at org.apache.activemq.broker.region.Queue.doActualDispatch(Queue.java:2208)
> at org.apache.activemq.broker.region.Queue.doDispatch(Queue.java:2156)
> at org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:2307)
> at org.apache.activemq.broker.region.Queue.iterate(Queue.java:1728) locked
> <0x00077ebc5178> (a java.lang.Object)
> at org.apache.activemq.broker.region.Queue.wakeup(Queue.java:1977)
> at org.apache.activemq.broker.region.Queue.messageSent(Queue.java:1971)
> at
> org.apache.activemq.broker.region.Queue.doPendingCursorAdditions(Queue.java:832)
> at org.apache.activemq.broker.region.Queue.tryOrderedCursorAdd(Queue.java:927)
> at org.apache.activemq.broker.region.Queue.doMessageSend(Queue.java:906)
> at org.apache.activemq.broker.region.Queue.send(Queue.java:756)
> at
> org.apache.activemq.broker.region.DestinationFilter.send(DestinationFilter.java:138)
> at
> org.apache.activemq.broker.region.AbstractRegion.send(AbstractRegion.java:511)
> at org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:477)
> at
> org.apache.activemq.broker.jmx.ManagedRegionBroker.send(ManagedRegionBroker.java:343)
> at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:154)
> at
> org.apache.activemq.broker.scheduler.SchedulerBroker.scheduledJob(SchedulerBroker.java:429)
> at
> org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.fireJob(JobSchedulerImpl.java:823)
> at
> org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.mainLoop(JobSchedulerImpl.java:753)
> at
> org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.run(JobSchedulerImpl.java:699)
> at java.lang.Thread.run(java.base@17.0.10/Thread.java:840)
> Locked ownable synchronizers: <0x00077ebc3ed0> (a
> java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
> {code}
>
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[jira] [Work logged] (AMQ-9448) RedeliveryPolicy causing lock in dispatcher
[
https://issues.apache.org/jira/browse/AMQ-9448?focusedWorklogId=910667=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-910667
]
ASF GitHub Bot logged work on AMQ-9448:
---
Author: ASF GitHub Bot
Created on: 20/Mar/24 06:25
Start Date: 20/Mar/24 06:25
Worklog Time Spent: 10m
Work Description: thezbyg commented on PR #1177:
URL: https://github.com/apache/activemq/pull/1177#issuecomment-2008727676
I have now added a new unit test. Does existing JmsSchedulerTest#testCron
unit test run successfully for you before this change?
Issue Time Tracking
---
Worklog Id: (was: 910667)
Time Spent: 0.5h (was: 20m)
> RedeliveryPolicy causing lock in dispatcher
> ---
>
> Key: AMQ-9448
> URL: https://issues.apache.org/jira/browse/AMQ-9448
> Project: ActiveMQ Classic
> Issue Type: Bug
> Components: Broker
>Affects Versions: 5.18.3
> Environment: ubuntu-22.04
> corretto-17
>Reporter: Oliver Holzmann
>Priority: Critical
> Attachments: doNotFireJobsWhileStoreLockIsHeld.patch, jstack1.out
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> We are using ActiveMQ with redeliveryPolicy enabled:
> {code:java}
>
> redeliveryDelay="1000" />
> {code}
> When a message exceeds maximumRedeliveries the queue is "frozen". This means
> the consumers can't read any messages and qrowing the queue in web console
> causes error 504.
> A thread dump shows a blocked JobScheduler:JMS thread:
> {code:java}
> priority : 5
> thread Id : x7fb985664960
> native Id : xae
> state : BLOCKED
> StackTrace:
> "JobScheduler:JMS" #75 daemon prio=5 os_prio=0 cpu=478.63ms elapsed=757.29s
> tid=0x7fb985664960 nid=0xae waiting for monitor entry [0x7fb80def1000]
> java.lang.Thread.State: BLOCKED (on object monitor)
> at
> org.apache.activemq.broker.region.PrefetchSubscription.dispatchPending(PrefetchSubscription.java:647)
> waiting to lock <0x00077ebc62a0> (a java.lang.Object) locked
> <0x00077ebc6290> (a java.lang.Object)
> at
> org.apache.activemq.broker.region.PrefetchSubscription.add(PrefetchSubscription.java:159)
> at org.apache.activemq.broker.region.Queue.doActualDispatch(Queue.java:2208)
> at org.apache.activemq.broker.region.Queue.doDispatch(Queue.java:2156)
> at org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:2307)
> at org.apache.activemq.broker.region.Queue.iterate(Queue.java:1728) locked
> <0x00077ebc5178> (a java.lang.Object)
> at org.apache.activemq.broker.region.Queue.wakeup(Queue.java:1977)
> at org.apache.activemq.broker.region.Queue.messageSent(Queue.java:1971)
> at
> org.apache.activemq.broker.region.Queue.doPendingCursorAdditions(Queue.java:832)
> at org.apache.activemq.broker.region.Queue.tryOrderedCursorAdd(Queue.java:927)
> at org.apache.activemq.broker.region.Queue.doMessageSend(Queue.java:906)
> at org.apache.activemq.broker.region.Queue.send(Queue.java:756)
> at
> org.apache.activemq.broker.region.DestinationFilter.send(DestinationFilter.java:138)
> at
> org.apache.activemq.broker.region.AbstractRegion.send(AbstractRegion.java:511)
> at org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:477)
> at
> org.apache.activemq.broker.jmx.ManagedRegionBroker.send(ManagedRegionBroker.java:343)
> at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:154)
> at
> org.apache.activemq.broker.scheduler.SchedulerBroker.scheduledJob(SchedulerBroker.java:429)
> at
> org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.fireJob(JobSchedulerImpl.java:823)
> at
> org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.mainLoop(JobSchedulerImpl.java:753)
> at
> org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.run(JobSchedulerImpl.java:699)
> at java.lang.Thread.run(java.base@17.0.10/Thread.java:840)
> Locked ownable synchronizers: <0x00077ebc3ed0> (a
> java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
> {code}
>
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[jira] [Work logged] (AMQ-9448) RedeliveryPolicy causing lock in dispatcher
[
https://issues.apache.org/jira/browse/AMQ-9448?focusedWorklogId=910217=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-910217
]
ASF GitHub Bot logged work on AMQ-9448:
---
Author: ASF GitHub Bot
Created on: 16/Mar/24 08:19
Start Date: 16/Mar/24 08:19
Worklog Time Spent: 10m
Work Description: thezbyg commented on PR #1177:
URL: https://github.com/apache/activemq/pull/1177#issuecomment-2001904263
Please use existing
org.apache.activemq.broker.scheduler.JmsSchedulerTest#testCron test to confirm
that persistent scheduler currently deadlocks on CRON jobs. This is not the
same deadlock as reported in AMQ-9448, but it is caused by the same reason.
Issue Time Tracking
---
Worklog Id: (was: 910217)
Time Spent: 20m (was: 10m)
> RedeliveryPolicy causing lock in dispatcher
> ---
>
> Key: AMQ-9448
> URL: https://issues.apache.org/jira/browse/AMQ-9448
> Project: ActiveMQ Classic
> Issue Type: Bug
> Components: Broker
>Affects Versions: 5.18.3
> Environment: ubuntu-22.04
> corretto-17
>Reporter: Oliver Holzmann
>Priority: Critical
> Attachments: doNotFireJobsWhileStoreLockIsHeld.patch, jstack1.out
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> We are using ActiveMQ with redeliveryPolicy enabled:
> {code:java}
>
> redeliveryDelay="1000" />
> {code}
> When a message exceeds maximumRedeliveries the queue is "frozen". This means
> the consumers can't read any messages and qrowing the queue in web console
> causes error 504.
> A thread dump shows a blocked JobScheduler:JMS thread:
> {code:java}
> priority : 5
> thread Id : x7fb985664960
> native Id : xae
> state : BLOCKED
> StackTrace:
> "JobScheduler:JMS" #75 daemon prio=5 os_prio=0 cpu=478.63ms elapsed=757.29s
> tid=0x7fb985664960 nid=0xae waiting for monitor entry [0x7fb80def1000]
> java.lang.Thread.State: BLOCKED (on object monitor)
> at
> org.apache.activemq.broker.region.PrefetchSubscription.dispatchPending(PrefetchSubscription.java:647)
> waiting to lock <0x00077ebc62a0> (a java.lang.Object) locked
> <0x00077ebc6290> (a java.lang.Object)
> at
> org.apache.activemq.broker.region.PrefetchSubscription.add(PrefetchSubscription.java:159)
> at org.apache.activemq.broker.region.Queue.doActualDispatch(Queue.java:2208)
> at org.apache.activemq.broker.region.Queue.doDispatch(Queue.java:2156)
> at org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:2307)
> at org.apache.activemq.broker.region.Queue.iterate(Queue.java:1728) locked
> <0x00077ebc5178> (a java.lang.Object)
> at org.apache.activemq.broker.region.Queue.wakeup(Queue.java:1977)
> at org.apache.activemq.broker.region.Queue.messageSent(Queue.java:1971)
> at
> org.apache.activemq.broker.region.Queue.doPendingCursorAdditions(Queue.java:832)
> at org.apache.activemq.broker.region.Queue.tryOrderedCursorAdd(Queue.java:927)
> at org.apache.activemq.broker.region.Queue.doMessageSend(Queue.java:906)
> at org.apache.activemq.broker.region.Queue.send(Queue.java:756)
> at
> org.apache.activemq.broker.region.DestinationFilter.send(DestinationFilter.java:138)
> at
> org.apache.activemq.broker.region.AbstractRegion.send(AbstractRegion.java:511)
> at org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:477)
> at
> org.apache.activemq.broker.jmx.ManagedRegionBroker.send(ManagedRegionBroker.java:343)
> at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:154)
> at
> org.apache.activemq.broker.scheduler.SchedulerBroker.scheduledJob(SchedulerBroker.java:429)
> at
> org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.fireJob(JobSchedulerImpl.java:823)
> at
> org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.mainLoop(JobSchedulerImpl.java:753)
> at
> org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.run(JobSchedulerImpl.java:699)
> at java.lang.Thread.run(java.base@17.0.10/Thread.java:840)
> Locked ownable synchronizers: <0x00077ebc3ed0> (a
> java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
> {code}
>
--
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(v8.20.10#820010)
[jira] [Work logged] (AMQ-9448) RedeliveryPolicy causing lock in dispatcher
[
https://issues.apache.org/jira/browse/AMQ-9448?focusedWorklogId=910216=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-910216
]
ASF GitHub Bot logged work on AMQ-9448:
---
Author: ASF GitHub Bot
Created on: 16/Mar/24 08:14
Start Date: 16/Mar/24 08:14
Worklog Time Spent: 10m
Work Description: thezbyg opened a new pull request, #1177:
URL: https://github.com/apache/activemq/pull/1177
Do not fire or schedule jobs while holding read lock on store.
Issue Time Tracking
---
Worklog Id: (was: 910216)
Remaining Estimate: 0h
Time Spent: 10m
> RedeliveryPolicy causing lock in dispatcher
> ---
>
> Key: AMQ-9448
> URL: https://issues.apache.org/jira/browse/AMQ-9448
> Project: ActiveMQ Classic
> Issue Type: Bug
> Components: Broker
>Affects Versions: 5.18.3
> Environment: ubuntu-22.04
> corretto-17
>Reporter: Oliver Holzmann
>Priority: Critical
> Attachments: doNotFireJobsWhileStoreLockIsHeld.patch, jstack1.out
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> We are using ActiveMQ with redeliveryPolicy enabled:
> {code:java}
>
> redeliveryDelay="1000" />
> {code}
> When a message exceeds maximumRedeliveries the queue is "frozen". This means
> the consumers can't read any messages and qrowing the queue in web console
> causes error 504.
> A thread dump shows a blocked JobScheduler:JMS thread:
> {code:java}
> priority : 5
> thread Id : x7fb985664960
> native Id : xae
> state : BLOCKED
> StackTrace:
> "JobScheduler:JMS" #75 daemon prio=5 os_prio=0 cpu=478.63ms elapsed=757.29s
> tid=0x7fb985664960 nid=0xae waiting for monitor entry [0x7fb80def1000]
> java.lang.Thread.State: BLOCKED (on object monitor)
> at
> org.apache.activemq.broker.region.PrefetchSubscription.dispatchPending(PrefetchSubscription.java:647)
> waiting to lock <0x00077ebc62a0> (a java.lang.Object) locked
> <0x00077ebc6290> (a java.lang.Object)
> at
> org.apache.activemq.broker.region.PrefetchSubscription.add(PrefetchSubscription.java:159)
> at org.apache.activemq.broker.region.Queue.doActualDispatch(Queue.java:2208)
> at org.apache.activemq.broker.region.Queue.doDispatch(Queue.java:2156)
> at org.apache.activemq.broker.region.Queue.pageInMessages(Queue.java:2307)
> at org.apache.activemq.broker.region.Queue.iterate(Queue.java:1728) locked
> <0x00077ebc5178> (a java.lang.Object)
> at org.apache.activemq.broker.region.Queue.wakeup(Queue.java:1977)
> at org.apache.activemq.broker.region.Queue.messageSent(Queue.java:1971)
> at
> org.apache.activemq.broker.region.Queue.doPendingCursorAdditions(Queue.java:832)
> at org.apache.activemq.broker.region.Queue.tryOrderedCursorAdd(Queue.java:927)
> at org.apache.activemq.broker.region.Queue.doMessageSend(Queue.java:906)
> at org.apache.activemq.broker.region.Queue.send(Queue.java:756)
> at
> org.apache.activemq.broker.region.DestinationFilter.send(DestinationFilter.java:138)
> at
> org.apache.activemq.broker.region.AbstractRegion.send(AbstractRegion.java:511)
> at org.apache.activemq.broker.region.RegionBroker.send(RegionBroker.java:477)
> at
> org.apache.activemq.broker.jmx.ManagedRegionBroker.send(ManagedRegionBroker.java:343)
> at org.apache.activemq.broker.BrokerFilter.send(BrokerFilter.java:154)
> at
> org.apache.activemq.broker.scheduler.SchedulerBroker.scheduledJob(SchedulerBroker.java:429)
> at
> org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.fireJob(JobSchedulerImpl.java:823)
> at
> org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.mainLoop(JobSchedulerImpl.java:753)
> at
> org.apache.activemq.store.kahadb.scheduler.JobSchedulerImpl.run(JobSchedulerImpl.java:699)
> at java.lang.Thread.run(java.base@17.0.10/Thread.java:840)
> Locked ownable synchronizers: <0x00077ebc3ed0> (a
> java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
> {code}
>
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