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FileAlreadyExistsException occures if I setup linux directory soft link for ~/.m2/repository/.meta #3555

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MengChaoDeKu opened this issue Mar 7, 2024 · 2 comments
Open

FileAlreadyExistsException occures if I setup linux directory soft link for ~/.m2/repository/.meta #3555

MengChaoDeKu opened this issue Mar 7, 2024 · 2 comments

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@MengChaoDeKu
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MengChaoDeKu commented Mar 7, 2024 •
edited

Issue tycho version: 4.0.6

In my case, I setup a jenkins task, in the container configuration, I mounted a volume with the default m2 to ~/.m2 to speed up the build speed, since the volume can be used by other instance, so I create a directory soft link for the ~/.m2/repository/.meta:
mkdir -p ~/p2/.meta && ln -s ~/p2/.meta/ ~/.m2/repository/.meta
Then I run the tycho build.
The build worked well until I upgraded the tycho version from 4.0.4 to 4.0.6, now it fails with:

[ERROR] java.nio.file.FileAlreadyExistsException: /home/user/.m2/repository/.meta
java.lang.IllegalStateException: java.nio.file.FileAlreadyExistsException: /home/user/.m2/repository/.meta
    at org.eclipse.tycho.core.locking.FileLockerImpl.<init> (FileLockerImpl.java:48)
    at org.eclipse.tycho.core.locking.FileLockServiceImpl.lambda$getFileLocker$1 (FileLockServiceImpl.java:71)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1708)
    at org.eclipse.tycho.core.locking.FileLockServiceImpl.getFileLocker (FileLockServiceImpl.java:71)
    at org.eclipse.tycho.core.locking.FileLockServiceImpl.lock (FileLockServiceImpl.java:39)
    at org.eclipse.tycho.FileLockService.lock (FileLockService.java:32)
    at org.eclipse.tycho.p2.repository.FileBasedTychoRepositoryIndex.save (FileBasedTychoRepositoryIndex.java:109)
    at org.eclipse.tycho.p2.repository.LocalArtifactRepository.save (LocalArtifactRepository.java:127)
    at org.eclipse.tycho.p2resolver.TargetPlatformBaseImpl.saveLocalMavenRepository (TargetPlatformBaseImpl.java:174)
    at org.eclipse.tycho.p2resolver.P2ResolverImpl.toResolutionResult (P2ResolverImpl.java:261)
    at org.eclipse.tycho.p2resolver.P2ResolverImpl.resolveDependencies (P2ResolverImpl.java:246)
    at org.eclipse.tycho.p2resolver.P2ResolverImpl.resolveTargetDependencies (P2ResolverImpl.java:124)
    at org.eclipse.tycho.p2resolver.P2DependencyResolver.doResolveDependencies (P2DependencyResolver.java:378)
    at org.eclipse.tycho.p2resolver.P2DependencyResolver.resolveDependencies (P2DependencyResolver.java:328)
    at org.eclipse.tycho.core.osgitools.AbstractTychoProject.lambda$getDependencyArtifacts$0 (AbstractTychoProject.java:92)
    at org.eclipse.tycho.core.osgitools.DefaultReactorProject$LazyValue.get (DefaultReactorProject.java:307)
    at org.eclipse.tycho.core.osgitools.DefaultReactorProject.computeContextValue (DefaultReactorProject.java:200)
    at org.eclipse.tycho.core.osgitools.AbstractTychoProject.getDependencyArtifacts (AbstractTychoProject.java:82)
    at org.eclipse.tycho.core.resolver.DefaultTychoResolver.resolveProject (DefaultTychoResolver.java:98)
    at org.eclipse.tycho.core.maven.TychoProjectExecutionListener.beforeProjectLifecycleExecution (TychoProjectExecutionListener.java:111)
    at org.apache.maven.lifecycle.internal.CompoundProjectExecutionListener.beforeProjectLifecycleExecution (CompoundProjectExecutionListener.java:42)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:103)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    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:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
Caused by: java.nio.file.FileAlreadyExistsException: /home/user/.m2/repository/.meta
    at sun.nio.fs.UnixException.translateToIOException (UnixException.java:94)
    at sun.nio.fs.UnixException.rethrowAsIOException (UnixException.java:106)
    at sun.nio.fs.UnixException.rethrowAsIOException (UnixException.java:111)
    at sun.nio.fs.UnixFileSystemProvider.createDirectory (UnixFileSystemProvider.java:398)
    at java.nio.file.Files.createDirectory (Files.java:700)
    at java.nio.file.Files.createAndCheckIsDirectory (Files.java:807)
    at java.nio.file.Files.createDirectories (Files.java:753)
    at org.eclipse.tycho.core.locking.FileLockerImpl.<init> (FileLockerImpl.java:46)
    at org.eclipse.tycho.core.locking.FileLockServiceImpl.lambda$getFileLocker$1 (FileLockServiceImpl.java:71)
    at java.util.concurrent.ConcurrentHashMap.computeIfAbsent (ConcurrentHashMap.java:1708)
    at org.eclipse.tycho.core.locking.FileLockServiceImpl.getFileLocker (FileLockServiceImpl.java:71)
    at org.eclipse.tycho.core.locking.FileLockServiceImpl.lock (FileLockServiceImpl.java:39)
    at org.eclipse.tycho.FileLockService.lock (FileLockService.java:32)
    at org.eclipse.tycho.p2.repository.FileBasedTychoRepositoryIndex.save (FileBasedTychoRepositoryIndex.java:109)
    at org.eclipse.tycho.p2.repository.LocalArtifactRepository.save (LocalArtifactRepository.java:127)
    at org.eclipse.tycho.p2resolver.TargetPlatformBaseImpl.saveLocalMavenRepository (TargetPlatformBaseImpl.java:174)
    at org.eclipse.tycho.p2resolver.P2ResolverImpl.toResolutionResult (P2ResolverImpl.java:261)
    at org.eclipse.tycho.p2resolver.P2ResolverImpl.resolveDependencies (P2ResolverImpl.java:246)
    at org.eclipse.tycho.p2resolver.P2ResolverImpl.resolveTargetDependencies (P2ResolverImpl.java:124)
    at org.eclipse.tycho.p2resolver.P2DependencyResolver.doResolveDependencies (P2DependencyResolver.java:378)
    at org.eclipse.tycho.p2resolver.P2DependencyResolver.resolveDependencies (P2DependencyResolver.java:328)
    at org.eclipse.tycho.core.osgitools.AbstractTychoProject.lambda$getDependencyArtifacts$0 (AbstractTychoProject.java:92)
    at org.eclipse.tycho.core.osgitools.DefaultReactorProject$LazyValue.get (DefaultReactorProject.java:307)
    at org.eclipse.tycho.core.osgitools.DefaultReactorProject.computeContextValue (DefaultReactorProject.java:200)
    at org.eclipse.tycho.core.osgitools.AbstractTychoProject.getDependencyArtifacts (AbstractTychoProject.java:82)
    at org.eclipse.tycho.core.resolver.DefaultTychoResolver.resolveProject (DefaultTychoResolver.java:98)
    at org.eclipse.tycho.core.maven.TychoProjectExecutionListener.beforeProjectLifecycleExecution (TychoProjectExecutionListener.java:111)
    at org.apache.maven.lifecycle.internal.CompoundProjectExecutionListener.beforeProjectLifecycleExecution (CompoundProjectExecutionListener.java:42)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:103)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    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:283)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:226)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:407)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:348)
@laeubi
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laeubi commented Mar 7, 2024

I mounted a volume with the default m2 to ~/.m2 to speed up the build speed, since the volume can be used by other instance,

Sharing the m2 repository across multiple builds is not really supported, if it is also a network device you can have even more issues.

@MengChaoDeKu
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MengChaoDeKu commented Mar 8, 2024 •
edited

Hi @laeubi , thanks for your response, I'll re-think about the multiple builds issue on my environment;
Anyway, regarding the FileAlreadyExistsException if user creates soft link for ~/.m2/repository/.meta, the issue can also be reproduced on pure local linux machine, just need to create a soft link for ~/.m2/repository/.meta; is it still a bug to be fixed right?

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@laeubi @MengChaoDeKu