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[MNG-8341] Maven deadlocks during model building #9512

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[MNG-8341] Maven deadlocks during model building#9512
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gnodet
Labels
bugSomething isn't workingpriority:majorMajor loss of function
Milestone
4.0.0
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Description

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opened on Oct 21, 2024

Guillaume Nodet opened MNG-8341 and commented

A deadlock seems to occur when trying to build {}pdfbox {{master ({}5fb3c773db31e1454a302df4a3a6b2e4e8dbe486}} at this time).

 

➜  pdfbox git:(trunk) ~/work/git/maven/apache-maven/target/apache-maven-4.0.0-beta-6-SNAPSHOT/bin/mvn install
[INFO] Scanning for projects...
\^\2024-10-21 18:37:27
Full thread dump OpenJDK 64-Bit Server VM (21.0.4+7-LTS mixed mode):


Threads class SMR info:
_java_thread_list=0x00006000019865a0, length=17, elements={
0x000000011c019c00, 0x000000013c855c00, 0x000000011c09e400, 0x000000013c856400,
0x000000013e00cc00, 0x000000013e008800, 0x000000013e009000, 0x000000013e00f600,
0x000000011c09ec00, 0x000000011c018800, 0x000000013daf1a00, 0x000000013f382e00,
0x000000013f300e00, 0x000000013e13ea00, 0x000000013e13f200, 0x000000013e13fa00,
0x000000013e140200
}


"main" #1 [10243] prio=5 os_prio=31 cpu=850.73ms elapsed=5.45s tid=0x000000011c019c00 nid=10243 waiting on condition  [0x000000016dd49000]
   java.lang.Thread.State: TIMED_WAITING (parking)
	at jdk.internal.misc.Unsafe.park(java.base@21.0.4/Native Method)
	- parking to wait for  <0x000000061fccb4b8> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.parkNanos(java.base@21.0.4/LockSupport.java:269)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(java.base@21.0.4/AbstractQueuedSynchronizer.java:1847)
	at org.apache.maven.internal.impl.util.PhasingExecutor.close(PhasingExecutor.java:141)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.buildBuildPom(DefaultModelBuilder.java:682)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$1.build(DefaultModelBuilder.java:226)
	at org.apache.maven.project.DefaultProjectBuilder$BuildSession.build(DefaultProjectBuilder.java:497)
	at org.apache.maven.project.DefaultProjectBuilder$BuildSession.lambda$doBuild$5(DefaultProjectBuilder.java:474)
	at org.apache.maven.project.DefaultProjectBuilder$BuildSession$$Lambda/0x00000008003c4570.apply(Unknown Source)
	at java.util.stream.ReferencePipeline$3$1.accept(java.base@21.0.4/ReferencePipeline.java:197)
	at java.util.Collections$2.tryAdvance(java.base@21.0.4/Collections.java:5073)
	at java.util.Collections$2.forEachRemaining(java.base@21.0.4/Collections.java:5081)
	at java.util.stream.AbstractPipeline.copyInto(java.base@21.0.4/AbstractPipeline.java:509)
	at java.util.stream.AbstractPipeline.wrapAndCopyInto(java.base@21.0.4/AbstractPipeline.java:499)
	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(java.base@21.0.4/ReduceOps.java:921)
	at java.util.stream.AbstractPipeline.evaluate(java.base@21.0.4/AbstractPipeline.java:234)
	at java.util.stream.ReferencePipeline.collect(java.base@21.0.4/ReferencePipeline.java:682)
	at org.apache.maven.project.DefaultProjectBuilder$BuildSession.doBuild(DefaultProjectBuilder.java:476)
	at org.apache.maven.project.DefaultProjectBuilder$BuildSession.build(DefaultProjectBuilder.java:450)
	at org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:184)
	at org.apache.maven.project.collector.DefaultProjectsSelector.selectProjects(DefaultProjectsSelector.java:61)
	at org.apache.maven.project.collector.RequestPomCollectionStrategy.collectProjects(RequestPomCollectionStrategy.java:49)
	at org.apache.maven.graph.DefaultGraphBuilder.getProjectsForMavenReactor(DefaultGraphBuilder.java:364)
	at org.apache.maven.graph.DefaultGraphBuilder.build(DefaultGraphBuilder.java:100)
	at org.apache.maven.DefaultMaven.buildGraph(DefaultMaven.java:629)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:250)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:225)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:149)
	at org.apache.maven.cling.invoker.mvn.DefaultMavenInvoker.doExecute(DefaultMavenInvoker.java:496)
	at org.apache.maven.cling.invoker.mvn.DefaultMavenInvoker.execute(DefaultMavenInvoker.java:113)
	at org.apache.maven.cling.invoker.mvn.DefaultMavenInvoker.execute(DefaultMavenInvoker.java:80)
	at org.apache.maven.cling.invoker.LookupInvoker.doInvoke(LookupInvoker.java:237)
	at org.apache.maven.cling.invoker.LookupInvoker.invoke(LookupInvoker.java:212)
	at org.apache.maven.cling.ClingSupport.run(ClingSupport.java:68)
	at org.apache.maven.cling.MavenCling.main(MavenCling.java:51)
	at java.lang.invoke.DirectMethodHandle$Holder.invokeStatic(java.base@21.0.4/DirectMethodHandle$Holder)
	at java.lang.invoke.LambdaForm$MH/0x00000008000c4400.invoke(java.base@21.0.4/LambdaForm$MH)
	at java.lang.invoke.LambdaForm$MH/0x00000008000c4800.invokeExact_MT(java.base@21.0.4/LambdaForm$MH)
	at jdk.internal.reflect.DirectMethodHandleAccessor.invokeImpl(java.base@21.0.4/DirectMethodHandleAccessor.java:155)
	at jdk.internal.reflect.DirectMethodHandleAccessor.invoke(java.base@21.0.4/DirectMethodHandleAccessor.java:103)
	at java.lang.reflect.Method.invoke(java.base@21.0.4/Method.java:580)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:255)
	at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:201)
	at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:361)
	at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:314)


"Reference Handler" #9 [24835] daemon prio=10 os_prio=31 cpu=0.86ms elapsed=5.43s tid=0x000000013c855c00 nid=24835 waiting on condition  [0x000000016eec2000]
   java.lang.Thread.State: RUNNABLE
	at java.lang.ref.Reference.waitForReferencePendingList([email protected]/Native Method)
	at java.lang.ref.Reference.processPendingReferences([email protected]/Reference.java:246)
	at java.lang.ref.Reference$ReferenceHandler.run([email protected]/Reference.java:208)


"Finalizer" #10 [29699] daemon prio=8 os_prio=31 cpu=0.10ms elapsed=5.43s tid=0x000000011c09e400 nid=29699 in Object.wait()  [0x000000016f0ce000]
   java.lang.Thread.State: WAITING (on object monitor)
	at java.lang.Object.wait0([email protected]/Native Method)
	- waiting on <0x0000000600001098> (a java.lang.ref.NativeReferenceQueue$Lock)
	at java.lang.Object.wait([email protected]/Object.java:366)
	at java.lang.Object.wait([email protected]/Object.java:339)
	at java.lang.ref.NativeReferenceQueue.await([email protected]/NativeReferenceQueue.java:48)
	at java.lang.ref.ReferenceQueue.remove0([email protected]/ReferenceQueue.java:158)
	at java.lang.ref.NativeReferenceQueue.remove([email protected]/NativeReferenceQueue.java:89)
	- locked <0x0000000600001098> (a java.lang.ref.NativeReferenceQueue$Lock)
	at java.lang.ref.Finalizer$FinalizerThread.run([email protected]/Finalizer.java:173)


"Signal Dispatcher" #11 [25347] daemon prio=9 os_prio=31 cpu=0.09ms elapsed=5.43s tid=0x000000013c856400 nid=25347 waiting on condition  [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE


"Service Thread" #12 [29443] daemon prio=9 os_prio=31 cpu=0.78ms elapsed=5.43s tid=0x000000013e00cc00 nid=29443 runnable  [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE


"Monitor Deflation Thread" #13 [25859] daemon prio=9 os_prio=31 cpu=0.21ms elapsed=5.43s tid=0x000000013e008800 nid=25859 runnable  [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE


"C2 CompilerThread0" #14 [26115] daemon prio=9 os_prio=31 cpu=724.68ms elapsed=5.43s tid=0x000000013e009000 nid=26115 waiting on condition  [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
   No compile task


"C1 CompilerThread0" #17 [28419] daemon prio=9 os_prio=31 cpu=404.59ms elapsed=5.43s tid=0x000000013e00f600 nid=28419 waiting on condition  [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE
   No compile task


"Notification Thread" #18 [26627] daemon prio=9 os_prio=31 cpu=0.03ms elapsed=5.42s tid=0x000000011c09ec00 nid=26627 runnable  [0x0000000000000000]
   java.lang.Thread.State: RUNNABLE


"Common-Cleaner" #19 [27907] daemon prio=8 os_prio=31 cpu=1.03ms elapsed=5.41s tid=0x000000011c018800 nid=27907 waiting on condition  [0x000000016ff22000]
   java.lang.Thread.State: TIMED_WAITING (parking)
	at jdk.internal.misc.Unsafe.park([email protected]/Native Method)
	- parking to wait for  <0x0000000600002a20> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.parkNanos([email protected]/LockSupport.java:269)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await([email protected]/AbstractQueuedSynchronizer.java:1847)
	at java.lang.ref.ReferenceQueue.await([email protected]/ReferenceQueue.java:71)
	at java.lang.ref.ReferenceQueue.remove0([email protected]/ReferenceQueue.java:143)
	at java.lang.ref.ReferenceQueue.remove([email protected]/ReferenceQueue.java:218)
	at jdk.internal.ref.CleanerImpl.run([email protected]/CleanerImpl.java:140)
	at java.lang.Thread.runWith([email protected]/Thread.java:1596)
	at java.lang.Thread.run([email protected]/Thread.java:1583)
	at jdk.internal.misc.InnocuousThread.run([email protected]/InnocuousThread.java:186)


"Thread-1" #34 [41223] daemon prio=5 os_prio=31 cpu=0.70ms elapsed=4.58s tid=0x000000013daf1a00 nid=41223 waiting on condition  [0x0000000301266000]
   java.lang.Thread.State: WAITING (parking)
	at jdk.internal.misc.Unsafe.park([email protected]/Native Method)
	- parking to wait for  <0x0000000601440458> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park([email protected]/LockSupport.java:371)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionNode.block([email protected]/AbstractQueuedSynchronizer.java:519)
	at java.util.concurrent.ForkJoinPool.unmanagedBlock([email protected]/ForkJoinPool.java:3780)
	at java.util.concurrent.ForkJoinPool.managedBlock([email protected]/ForkJoinPool.java:3725)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await([email protected]/AbstractQueuedSynchronizer.java:1707)
	at java.util.concurrent.ArrayBlockingQueue.take([email protected]/ArrayBlockingQueue.java:420)
	at org.apache.maven.cli.transfer.SimplexTransferListener.feedConsumer(SimplexTransferListener.java:94)
	at org.apache.maven.cli.transfer.SimplexTransferListener$$Lambda/0x00000008003a7de0.run(Unknown Source)
	at java.lang.Thread.runWith([email protected]/Thread.java:1596)
	at java.lang.Thread.run([email protected]/Thread.java:1583)


"pool-3-thread-1" #41 [39943] prio=5 os_prio=31 cpu=0.98ms elapsed=4.52s tid=0x000000013f382e00 nid=39943 waiting for monitor entry  [0x000000030167e000]
   java.lang.Thread.State: BLOCKED (on object monitor)
	at org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier.get(DefaultModelCache.java:176)
	- waiting to lock <0x000000061e3f5eb8> (a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:65)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:56)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.cache(DefaultModelBuilder.java:1734)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readAsParentModel(DefaultModelBuilder.java:1490)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParentLocally(DefaultModelBuilder.java:932)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.resolveParent(DefaultModelBuilder.java:901)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParent(DefaultModelBuilder.java:872)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readEffectiveModel(DefaultModelBuilder.java:1161)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.buildEffectiveModel(DefaultModelBuilder.java:806)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.lambda$buildBuildPom$7(DefaultModelBuilder.java:674)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession$$Lambda/0x00000008003d5b18.run(Unknown Source)
	at org.apache.maven.internal.impl.util.PhasingExecutor.lambda$execute$0(PhasingExecutor.java:80)
	at org.apache.maven.internal.impl.util.PhasingExecutor$$Lambda/0x00000008003ce840.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker([email protected]/ThreadPoolExecutor.java:1144)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run([email protected]/ThreadPoolExecutor.java:642)
	at java.lang.Thread.runWith([email protected]/Thread.java:1596)
	at java.lang.Thread.run([email protected]/Thread.java:1583)


"pool-3-thread-2" #42 [40455] prio=5 os_prio=31 cpu=1.11ms elapsed=4.52s tid=0x000000013f300e00 nid=40455 waiting for monitor entry  [0x0000000301889000]
   java.lang.Thread.State: BLOCKED (on object monitor)
	at org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier.get(DefaultModelCache.java:176)
	- waiting to lock <0x000000061e3f5eb8> (a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:65)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:56)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.cache(DefaultModelBuilder.java:1734)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readAsParentModel(DefaultModelBuilder.java:1490)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParentLocally(DefaultModelBuilder.java:932)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.resolveParent(DefaultModelBuilder.java:901)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParent(DefaultModelBuilder.java:872)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.doReadAsParentModel(DefaultModelBuilder.java:1495)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession$$Lambda/0x00000008003d3108.get(Unknown Source)
	at org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier.get(DefaultModelCache.java:178)
	- locked <0x000000061e26ed10> (a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:65)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:56)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.cache(DefaultModelBuilder.java:1734)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readAsParentModel(DefaultModelBuilder.java:1490)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParentLocally(DefaultModelBuilder.java:932)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.resolveParent(DefaultModelBuilder.java:901)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParent(DefaultModelBuilder.java:872)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readEffectiveModel(DefaultModelBuilder.java:1161)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.buildEffectiveModel(DefaultModelBuilder.java:806)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.lambda$buildBuildPom$7(DefaultModelBuilder.java:674)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession$$Lambda/0x00000008003d5b18.run(Unknown Source)
	at org.apache.maven.internal.impl.util.PhasingExecutor.lambda$execute$0(PhasingExecutor.java:80)
	at org.apache.maven.internal.impl.util.PhasingExecutor$$Lambda/0x00000008003ce840.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker([email protected]/ThreadPoolExecutor.java:1144)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run([email protected]/ThreadPoolExecutor.java:642)
	at java.lang.Thread.runWith([email protected]/Thread.java:1596)
	at java.lang.Thread.run([email protected]/Thread.java:1583)


"pool-3-thread-3" #43 [39431] prio=5 os_prio=31 cpu=0.75ms elapsed=4.52s tid=0x000000013e13ea00 nid=39431 waiting for monitor entry  [0x0000000301a96000]
   java.lang.Thread.State: BLOCKED (on object monitor)
	at org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier.get(DefaultModelCache.java:176)
	- waiting to lock <0x000000061e3f5eb8> (a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:65)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:56)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.cache(DefaultModelBuilder.java:1734)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readAsParentModel(DefaultModelBuilder.java:1490)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParentLocally(DefaultModelBuilder.java:932)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.resolveParent(DefaultModelBuilder.java:901)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParent(DefaultModelBuilder.java:872)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readEffectiveModel(DefaultModelBuilder.java:1161)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.buildEffectiveModel(DefaultModelBuilder.java:806)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.lambda$buildBuildPom$7(DefaultModelBuilder.java:674)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession$$Lambda/0x00000008003d5b18.run(Unknown Source)
	at org.apache.maven.internal.impl.util.PhasingExecutor.lambda$execute$0(PhasingExecutor.java:80)
	at org.apache.maven.internal.impl.util.PhasingExecutor$$Lambda/0x00000008003ce840.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker([email protected]/ThreadPoolExecutor.java:1144)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run([email protected]/ThreadPoolExecutor.java:642)
	at java.lang.Thread.runWith([email protected]/Thread.java:1596)
	at java.lang.Thread.run([email protected]/Thread.java:1583)


"pool-3-thread-4" #44 [40711] prio=5 os_prio=31 cpu=1.04ms elapsed=4.52s tid=0x000000013e13f200 nid=40711 waiting for monitor entry  [0x0000000301ca1000]
   java.lang.Thread.State: BLOCKED (on object monitor)
	at org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier.get(DefaultModelCache.java:176)
	- waiting to lock <0x000000061e26ed10> (a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:65)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:56)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.cache(DefaultModelBuilder.java:1734)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readAsParentModel(DefaultModelBuilder.java:1490)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParentLocally(DefaultModelBuilder.java:932)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.resolveParent(DefaultModelBuilder.java:901)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParent(DefaultModelBuilder.java:872)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.doReadAsParentModel(DefaultModelBuilder.java:1495)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession$$Lambda/0x00000008003d3108.get(Unknown Source)
	at org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier.get(DefaultModelCache.java:178)
	- locked <0x000000061e3f5eb8> (a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:65)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:56)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.cache(DefaultModelBuilder.java:1734)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readAsParentModel(DefaultModelBuilder.java:1490)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParentLocally(DefaultModelBuilder.java:932)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.resolveParent(DefaultModelBuilder.java:901)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParent(DefaultModelBuilder.java:872)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readEffectiveModel(DefaultModelBuilder.java:1161)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.buildEffectiveModel(DefaultModelBuilder.java:806)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.lambda$buildBuildPom$7(DefaultModelBuilder.java:674)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession$$Lambda/0x00000008003d5b18.run(Unknown Source)
	at org.apache.maven.internal.impl.util.PhasingExecutor.lambda$execute$0(PhasingExecutor.java:80)
	at org.apache.maven.internal.impl.util.PhasingExecutor$$Lambda/0x00000008003ce840.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker([email protected]/ThreadPoolExecutor.java:1144)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run([email protected]/ThreadPoolExecutor.java:642)
	at java.lang.Thread.runWith([email protected]/Thread.java:1596)
	at java.lang.Thread.run([email protected]/Thread.java:1583)


"pool-3-thread-5" #45 [34567] prio=5 os_prio=31 cpu=0.70ms elapsed=4.52s tid=0x000000013e13fa00 nid=34567 waiting for monitor entry  [0x0000000301eae000]
   java.lang.Thread.State: BLOCKED (on object monitor)
	at org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier.get(DefaultModelCache.java:176)
	- waiting to lock <0x000000061e3f5eb8> (a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:65)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:56)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.cache(DefaultModelBuilder.java:1734)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readAsParentModel(DefaultModelBuilder.java:1490)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParentLocally(DefaultModelBuilder.java:932)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.resolveParent(DefaultModelBuilder.java:901)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParent(DefaultModelBuilder.java:872)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readEffectiveModel(DefaultModelBuilder.java:1161)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.buildEffectiveModel(DefaultModelBuilder.java:806)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.lambda$buildBuildPom$7(DefaultModelBuilder.java:674)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession$$Lambda/0x00000008003d5b18.run(Unknown Source)
	at org.apache.maven.internal.impl.util.PhasingExecutor.lambda$execute$0(PhasingExecutor.java:80)
	at org.apache.maven.internal.impl.util.PhasingExecutor$$Lambda/0x00000008003ce840.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker([email protected]/ThreadPoolExecutor.java:1144)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run([email protected]/ThreadPoolExecutor.java:642)
	at java.lang.Thread.runWith([email protected]/Thread.java:1596)
	at java.lang.Thread.run([email protected]/Thread.java:1583)


"pool-3-thread-6" #46 [34823] prio=5 os_prio=31 cpu=0.86ms elapsed=4.52s tid=0x000000013e140200 nid=34823 waiting for monitor entry  [0x00000003020ba000]
   java.lang.Thread.State: BLOCKED (on object monitor)
	at org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier.get(DefaultModelCache.java:176)
	- waiting to lock <0x000000061e3f5eb8> (a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:65)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:56)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.cache(DefaultModelBuilder.java:1734)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readAsParentModel(DefaultModelBuilder.java:1490)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParentLocally(DefaultModelBuilder.java:932)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.resolveParent(DefaultModelBuilder.java:901)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParent(DefaultModelBuilder.java:872)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readEffectiveModel(DefaultModelBuilder.java:1161)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.buildEffectiveModel(DefaultModelBuilder.java:806)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.lambda$buildBuildPom$7(DefaultModelBuilder.java:674)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession$$Lambda/0x00000008003d5b18.run(Unknown Source)
	at org.apache.maven.internal.impl.util.PhasingExecutor.lambda$execute$0(PhasingExecutor.java:80)
	at org.apache.maven.internal.impl.util.PhasingExecutor$$Lambda/0x00000008003ce840.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker([email protected]/ThreadPoolExecutor.java:1144)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run([email protected]/ThreadPoolExecutor.java:642)
	at java.lang.Thread.runWith([email protected]/Thread.java:1596)
	at java.lang.Thread.run([email protected]/Thread.java:1583)


"G1 Conc#1" os_prio=31 cpu=1.33ms elapsed=4.95s tid=0x000000013bf45330 nid=34055 runnable  


"GC Thread#8" os_prio=31 cpu=9.97ms elapsed=5.14s tid=0x000000013d02a070 nid=33795 runnable  


"GC Thread#7" os_prio=31 cpu=5.91ms elapsed=5.14s tid=0x000000013bf22390 nid=41987 runnable  


"GC Thread#6" os_prio=31 cpu=4.52ms elapsed=5.14s tid=0x000000013bf21e20 nid=42243 runnable  


"GC Thread#5" os_prio=31 cpu=4.35ms elapsed=5.14s tid=0x000000013d21f9a0 nid=42499 runnable  


"GC Thread#4" os_prio=31 cpu=4.92ms elapsed=5.14s tid=0x000000013d21f430 nid=43011 runnable  


"GC Thread#3" os_prio=31 cpu=7.15ms elapsed=5.14s tid=0x000000013d21eec0 nid=33027 runnable  


"GC Thread#2" os_prio=31 cpu=7.74ms elapsed=5.14s tid=0x000000013d12ca50 nid=27395 runnable  


"GC Thread#1" os_prio=31 cpu=4.41ms elapsed=5.14s tid=0x000000013d12c4e0 nid=27651 runnable  


"VM Thread" os_prio=31 cpu=5.14ms elapsed=5.44s tid=0x000000013be05ad0 nid=18435 runnable  


"VM Periodic Task Thread" os_prio=31 cpu=1.63ms elapsed=5.45s tid=0x000000013d104750 nid=20995 waiting on condition  


"G1 Service" os_prio=31 cpu=0.49ms elapsed=5.45s tid=0x000000013d004300 nid=21507 runnable  


"G1 Refine#0" os_prio=31 cpu=0.57ms elapsed=5.45s tid=0x000000011c09d600 nid=16387 runnable  


"G1 Conc#0" os_prio=31 cpu=0.97ms elapsed=5.45s tid=0x000000011be07760 nid=12803 runnable  


"G1 Main Marker" os_prio=31 cpu=0.10ms elapsed=5.45s tid=0x000000011be06df0 nid=12035 runnable  


"GC Thread#0" os_prio=31 cpu=8.65ms elapsed=5.45s tid=0x000000011be06650 nid=11779 runnable  


JNI global refs: 16, weak refs: 0




Found one Java-level deadlock:
=============================
"pool-3-thread-1":
  waiting to lock monitor 0x000060000225a630 (object 0x000000061e3f5eb8, a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier),
  which is held by "pool-3-thread-4"


"pool-3-thread-4":
  waiting to lock monitor 0x0000600002203330 (object 0x000000061e26ed10, a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier),
  which is held by "pool-3-thread-2"


"pool-3-thread-2":
  waiting to lock monitor 0x000060000225a630 (object 0x000000061e3f5eb8, a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier),
  which is held by "pool-3-thread-4"


Java stack information for the threads listed above:
===================================================
"pool-3-thread-1":
	at org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier.get(DefaultModelCache.java:176)
	- waiting to lock <0x000000061e3f5eb8> (a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:65)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:56)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.cache(DefaultModelBuilder.java:1734)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readAsParentModel(DefaultModelBuilder.java:1490)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParentLocally(DefaultModelBuilder.java:932)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.resolveParent(DefaultModelBuilder.java:901)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParent(DefaultModelBuilder.java:872)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readEffectiveModel(DefaultModelBuilder.java:1161)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.buildEffectiveModel(DefaultModelBuilder.java:806)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.lambda$buildBuildPom$7(DefaultModelBuilder.java:674)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession$$Lambda/0x00000008003d5b18.run(Unknown Source)
	at org.apache.maven.internal.impl.util.PhasingExecutor.lambda$execute$0(PhasingExecutor.java:80)
	at org.apache.maven.internal.impl.util.PhasingExecutor$$Lambda/0x00000008003ce840.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker([email protected]/ThreadPoolExecutor.java:1144)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run([email protected]/ThreadPoolExecutor.java:642)
	at java.lang.Thread.runWith([email protected]/Thread.java:1596)
	at java.lang.Thread.run([email protected]/Thread.java:1583)
"pool-3-thread-4":
	at org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier.get(DefaultModelCache.java:176)
	- waiting to lock <0x000000061e26ed10> (a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:65)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:56)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.cache(DefaultModelBuilder.java:1734)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readAsParentModel(DefaultModelBuilder.java:1490)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParentLocally(DefaultModelBuilder.java:932)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.resolveParent(DefaultModelBuilder.java:901)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParent(DefaultModelBuilder.java:872)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.doReadAsParentModel(DefaultModelBuilder.java:1495)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession$$Lambda/0x00000008003d3108.get(Unknown Source)
	at org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier.get(DefaultModelCache.java:178)
	- locked <0x000000061e3f5eb8> (a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:65)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:56)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.cache(DefaultModelBuilder.java:1734)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readAsParentModel(DefaultModelBuilder.java:1490)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParentLocally(DefaultModelBuilder.java:932)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.resolveParent(DefaultModelBuilder.java:901)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParent(DefaultModelBuilder.java:872)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readEffectiveModel(DefaultModelBuilder.java:1161)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.buildEffectiveModel(DefaultModelBuilder.java:806)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.lambda$buildBuildPom$7(DefaultModelBuilder.java:674)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession$$Lambda/0x00000008003d5b18.run(Unknown Source)
	at org.apache.maven.internal.impl.util.PhasingExecutor.lambda$execute$0(PhasingExecutor.java:80)
	at org.apache.maven.internal.impl.util.PhasingExecutor$$Lambda/0x00000008003ce840.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker([email protected]/ThreadPoolExecutor.java:1144)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run([email protected]/ThreadPoolExecutor.java:642)
	at java.lang.Thread.runWith([email protected]/Thread.java:1596)
	at java.lang.Thread.run([email protected]/Thread.java:1583)
"pool-3-thread-2":
	at org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier.get(DefaultModelCache.java:176)
	- waiting to lock <0x000000061e3f5eb8> (a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:65)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:56)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.cache(DefaultModelBuilder.java:1734)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readAsParentModel(DefaultModelBuilder.java:1490)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParentLocally(DefaultModelBuilder.java:932)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.resolveParent(DefaultModelBuilder.java:901)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParent(DefaultModelBuilder.java:872)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.doReadAsParentModel(DefaultModelBuilder.java:1495)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession$$Lambda/0x00000008003d3108.get(Unknown Source)
	at org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier.get(DefaultModelCache.java:178)
	- locked <0x000000061e26ed10> (a org.apache.maven.internal.impl.model.DefaultModelCache$CachingSupplier)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:65)
	at org.apache.maven.internal.impl.model.DefaultModelCache.computeIfAbsent(DefaultModelCache.java:56)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.cache(DefaultModelBuilder.java:1734)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readAsParentModel(DefaultModelBuilder.java:1490)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParentLocally(DefaultModelBuilder.java:932)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.resolveParent(DefaultModelBuilder.java:901)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readParent(DefaultModelBuilder.java:872)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.readEffectiveModel(DefaultModelBuilder.java:1161)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.buildEffectiveModel(DefaultModelBuilder.java:806)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession.lambda$buildBuildPom$7(DefaultModelBuilder.java:674)
	at org.apache.maven.internal.impl.model.DefaultModelBuilder$DefaultModelBuilderSession$$Lambda/0x00000008003d5b18.run(Unknown Source)
	at org.apache.maven.internal.impl.util.PhasingExecutor.lambda$execute$0(PhasingExecutor.java:80)
	at org.apache.maven.internal.impl.util.PhasingExecutor$$Lambda/0x00000008003ce840.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker([email protected]/ThreadPoolExecutor.java:1144)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run([email protected]/ThreadPoolExecutor.java:642)
	at java.lang.Thread.runWith([email protected]/Thread.java:1596)
	at java.lang.Thread.run([email protected]/Thread.java:1583)


Found 1 deadlock.


Heap
 garbage-first heap   total 278528K, used 21271K [0x0000000600000000, 0x0000000800000000)
  region size 4096K, 4 young (16384K), 1 survivors (4096K)
 Metaspace       used 31985K, committed 32448K, reserved 1114112K
  class space    used 3690K, committed 3904K, reserved 1048576K

Affects: 4.0.0-beta-5

Remote Links:

Backported to: 4.0.0-rc-1

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