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https://issues.apache.org/jira/browse/MRESOLVER-325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17695723#comment-17695723
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Robert Muir commented on MRESOLVER-325:
---------------------------------------
Another trap to look out for with java, if you are going to write/fsync/close,
make sure the write() really happens first. You may have to call
BufferedWriter.flush or similar methods.
In lucene we write files with open/write/close. data is then in "uncommitted
state" (we have some features "NRT search" that still allow you to search it in
this state, kinda like read-uncommitted with a database).
When you call commit(), then we do open+fsync+close on all the data files (see
that IOUtils helper, that's what it does). Then we rename() the commit marker
and open+fsync+close the containing directory (again via IOUtils helper).
Sorry, i know its confusing as hell. synchronizing data to disk should be easy.
But java makes it pretty hard. Write once, test everywhere.
> [REGRESSION] Suddenly seeing I/O errors under windows aborting the build
> ------------------------------------------------------------------------
>
> Key: MRESOLVER-325
> URL: https://issues.apache.org/jira/browse/MRESOLVER-325
> Project: Maven Resolver
> Issue Type: Bug
> Components: Resolver
> Affects Versions: 1.9.4
> Reporter: Christoph Läubrich
> Assignee: Michael Osipov
> Priority: Major
> Fix For: 1.9.6
>
>
> If one runs a build that otherwise works fine on 3.8.x with 3.9 we now get
> the following exception (full output can be found here
> https://github.com/eclipse-platform/eclipse.platform/actions/runs/4211467991/jobs/7309831666):
> {code:java}
> Error: 5.889 [ERROR] Internal error: java.io.UncheckedIOException:
> java.nio.file.AccessDeniedException:
> C:\Users\runneradmin\.m2\repository\com\google\code\gson\gson\2.10.1\_remote.repositories.15650462061630955031.tmp
> ->
> C:\Users\runneradmin\.m2\repository\com\google\code\gson\gson\2.10.1\_remote.repositories
> -> [Help 1]
> org.apache.maven.InternalErrorException: Internal error:
> java.io.UncheckedIOException: java.nio.file.AccessDeniedException:
> C:\Users\runneradmin\.m2\repository\com\google\code\gson\gson\2.10.1\_remote.repositories.15650462061630955031.tmp
> ->
> C:\Users\runneradmin\.m2\repository\com\google\code\gson\gson\2.10.1\_remote.repositories
> at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:108)
> at org.apache.maven.cli.MavenCli.execute (MavenCli.java:821)
> at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:270)
> at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
> at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
> at jdk.internal.reflect.NativeMethodAccessorImpl.invoke
> (NativeMethodAccessorImpl.java:77)
> at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke
> (DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke (Method.java:568)
> at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced
> (Launcher.java:282)
> at org.codehaus.plexus.classworlds.launcher.Launcher.launch
> (Launcher.java:225)
> at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode
> (Launcher.java:406)
> at org.codehaus.plexus.classworlds.launcher.Launcher.main
> (Launcher.java:347)
> Caused by: java.io.UncheckedIOException: java.nio.file.AccessDeniedException:
> C:\Users\runneradmin\.m2\repository\com\google\code\gson\gson\2.10.1\_remote.repositories.15650462061630955031.tmp
> ->
> C:\Users\runneradmin\.m2\repository\com\google\code\gson\gson\2.10.1\_remote.repositories
> at org.eclipse.aether.internal.impl.DefaultTrackingFileManager.update
> (DefaultTrackingFileManager.java:121)
> at
> org.eclipse.aether.internal.impl.EnhancedLocalRepositoryManager.addRepo
> (EnhancedLocalRepositoryManager.java:274)
> at
> org.eclipse.aether.internal.impl.EnhancedLocalRepositoryManager.addArtifact
> (EnhancedLocalRepositoryManager.java:252)
> at org.eclipse.aether.internal.impl.EnhancedLocalRepositoryManager.add
> (EnhancedLocalRepositoryManager.java:225)
> at
> org.eclipse.aether.internal.impl.DefaultArtifactResolver.evaluateDownloads
> (DefaultArtifactResolver.java:680)
> at
> org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads
> (DefaultArtifactResolver.java:592)
> at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve
> (DefaultArtifactResolver.java:478)
> at
> org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts
> (DefaultArtifactResolver.java:278)
> at
> org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifact
> (DefaultArtifactResolver.java:255)
> at
> org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveArtifact
> (DefaultRepositorySystem.java:296)
> at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve
> (DefaultArtifactResolver.java:197)
> at org.apache.maven.artifact.resolver.DefaultArtifactResolver.resolve
> (DefaultArtifactResolver.java:413)
> at org.apache.maven.repository.legacy.LegacyRepositorySystem.resolve
> (LegacyRepositorySystem.java:332)
> at
> org.eclipse.tycho.osgi.configuration.MavenDependenciesResolverConfigurer.resolve
> (MavenDependenciesResolverConfigurer.java:104)
> at org.eclipse.tycho.core.shared.MavenDependenciesResolver.resolve
> (MavenDependenciesResolver.java:60)
> at org.eclipse.tycho.core.resolver.MavenTargetDefinitionContent.<init>
> (MavenTargetDefinitionContent.java:262)
> at
> org.eclipse.tycho.p2resolver.TargetDefinitionResolver.resolveContentWithExceptions
> (TargetDefinitionResolver.java:179)
> at org.eclipse.tycho.p2resolver.TargetDefinitionResolver.resolveContent
> (TargetDefinitionResolver.java:110)
> at
> org.eclipse.tycho.p2resolver.TargetDefinitionResolverService.resolveFromArguments
> (TargetDefinitionResolverService.java:90)
> at java.util.concurrent.ConcurrentHashMap.computeIfAbsent
> (ConcurrentHashMap.java:1708)
> at
> org.eclipse.tycho.p2resolver.TargetDefinitionResolverService.getTargetDefinitionContent
> (TargetDefinitionResolverService.java:65)
> at
> org.eclipse.tycho.p2resolver.TargetPlatformFactoryImpl.resolveTargetDefinitions
> (TargetPlatformFactoryImpl.java:214)
> at
> org.eclipse.tycho.p2resolver.TargetPlatformFactoryImpl.createTargetPlatform
> (TargetPlatformFactoryImpl.java:164)
> at
> org.eclipse.tycho.p2resolver.TargetPlatformFactoryImpl.createTargetPlatform
> (TargetPlatformFactoryImpl.java:137)
> at
> org.eclipse.tycho.p2resolver.TargetPlatformFactoryImpl.createTargetPlatform
> (TargetPlatformFactoryImpl.java:88)
> at
> org.eclipse.tycho.p2resolver.ReactorRepositoryManagerImpl.computePreliminaryTargetPlatform
> (ReactorRepositoryManagerImpl.java:61)
> at
> org.eclipse.tycho.p2resolver.P2DependencyResolver.computePreliminaryTargetPlatform
> (P2DependencyResolver.java:202)
> at org.eclipse.tycho.core.resolver.DefaultTychoResolver.resolveProject
> (DefaultTychoResolver.java:130)
> at
> org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.lambda$resolveProjects$2
> (TychoMavenLifecycleParticipant.java:256)
> at java.util.stream.ForEachOps$ForEachOp$OfRef.accept
> (ForEachOps.java:183)
> at java.util.stream.SpinedBuffer$1Splitr.forEachRemaining
> (SpinedBuffer.java:364)
> at java.util.stream.AbstractPipeline.copyInto (AbstractPipeline.java:509)
> at java.util.stream.ForEachOps$ForEachTask.compute (ForEachOps.java:290)
> at java.util.concurrent.CountedCompleter.exec (CountedCompleter.java:754)
> at java.util.concurrent.ForkJoinTask.doExec (ForkJoinTask.java:373)
> at java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec
> (ForkJoinPool.java:1182)
> at java.util.concurrent.ForkJoinPool.scan (ForkJoinPool.java:1655)
> at java.util.concurrent.ForkJoinPool.runWorker (ForkJoinPool.java:1622)
> at java.util.concurrent.ForkJoinWorkerThread.run
> (ForkJoinWorkerThread.java:165)
> {code}
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