seregamorph commented on PR #1938:
URL: https://github.com/apache/maven-resolver/pull/1938#issuecomment-4825719135
The build gets stuck. Some stack traces:
```
"mvn-turbo-builder-runner-board" #56 prio=5 os_prio=31 cpu=54709.59ms
elapsed=618.98s tid=0x0000000853d73600 nid=0xd603 waiting on condition
[0x0000000178b41000]
java.lang.Thread.State: WAITING (parking)
at jdk.internal.misc.Unsafe.park([email protected]/Native Method)
- parking to wait for <0x0000000b4cfd4290> (a
java.util.concurrent.CompletableFuture$Signaller)
at
java.util.concurrent.locks.LockSupport.park([email protected]/LockSupport.java:211)
at
java.util.concurrent.CompletableFuture$Signaller.block([email protected]/CompletableFuture.java:1864)
at
java.util.concurrent.ForkJoinPool.unmanagedBlock([email protected]/ForkJoinPool.java:3465)
at
java.util.concurrent.ForkJoinPool.managedBlock([email protected]/ForkJoinPool.java:3436)
at
java.util.concurrent.CompletableFuture.waitingGet([email protected]/CompletableFuture.java:1898)
at
java.util.concurrent.CompletableFuture.get([email protected]/CompletableFuture.java:2072)
at
org.eclipse.aether.internal.impl.collect.bf.BfDependencyCollector.processDependency(BfDependencyCollector.java:257)
at
org.eclipse.aether.internal.impl.collect.bf.BfDependencyCollector.doCollectDependencies(BfDependencyCollector.java:222)
at
org.eclipse.aether.internal.impl.collect.DependencyCollectorDelegate.collectDependencies(DependencyCollectorDelegate.java:260)
at
org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:79)
at
org.eclipse.aether.internal.impl.DefaultRepositorySystem.collectDependencies(DefaultRepositorySystem.java:247)
at
org.apache.maven.enforcer.rules.dependency.ResolverUtil.resolveTransitiveDependencies(ResolverUtil.java:149)
at
org.apache.maven.enforcer.rules.dependency.ResolverUtil.resolveTransitiveDependenciesVerbose(ResolverUtil.java:85)
at
org.apache.maven.enforcer.rules.dependency.DependencyConvergence.execute(DependencyConvergence.java:68)
at
org.apache.maven.plugins.enforcer.EnforceMojo.executeRuleNew(EnforceMojo.java:351)
at
org.apache.maven.plugins.enforcer.EnforceMojo.executeRule(EnforceMojo.java:325)
at
org.apache.maven.plugins.enforcer.EnforceMojo.execute(EnforceMojo.java:248)
at
org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:127)
at
org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2(MojoExecutor.java:336)
at
org.apache.maven.lifecycle.internal.MojoExecutor.doExecute(MojoExecutor.java:324)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:220)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:181)
at
org.apache.maven.lifecycle.internal.MojoExecutor.access$000(MojoExecutor.java:79)
at
org.apache.maven.lifecycle.internal.MojoExecutor$1.run(MojoExecutor.java:169)
at
org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute(DefaultMojosExecutionStrategy.java:39)
at
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:166)
at
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:106)
```
While all bfcollector threads are sleeping:
```
"BfDependencyCollector-1-1" #46 daemon prio=5 os_prio=31 cpu=630.15ms
elapsed=619.24s tid=0x0000000852760600 nid=0xc903 waiting on condition
[0x00000001776ca000]
java.lang.Thread.State: WAITING (parking)
at jdk.internal.misc.Unsafe.park([email protected]/Native Method)
- parking to wait for <0x0000000b5dacfec8> (a
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at
java.util.concurrent.locks.LockSupport.park([email protected]/LockSupport.java:341)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionNode.block([email protected]/AbstractQueuedSynchronizer.java:506)
at
java.util.concurrent.ForkJoinPool.unmanagedBlock([email protected]/ForkJoinPool.java:3465)
at
java.util.concurrent.ForkJoinPool.managedBlock([email protected]/ForkJoinPool.java:3436)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await([email protected]/AbstractQueuedSynchronizer.java:1630)
at
java.util.concurrent.LinkedBlockingQueue.take([email protected]/LinkedBlockingQueue.java:435)
at
java.util.concurrent.ThreadPoolExecutor.getTask([email protected]/ThreadPoolExecutor.java:1062)
at
java.util.concurrent.ThreadPoolExecutor.runWorker([email protected]/ThreadPoolExecutor.java:1122)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run([email protected]/ThreadPoolExecutor.java:635)
at java.lang.Thread.run([email protected]/Thread.java:840)
```
Worth to mention:
* there is no OOM
* the options are
```
# AFAIK default now
-Daether.dependencyCollector.impl=bf
-Daether.dependencyCollector.bf.threads=10
```
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