[MNG-7868] "Could not acquire lock(s)" error in concurrent maven builds

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Environment: windows, maven 3.9.4
• Assignee: Unassigned
• Reporter: Jörg Hohwiller
• Created: 04/Sep/23 10:11
• Updated: 14/Aug/24 23:14

Description

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-install-plugin:3.1.1:install (default-install) on project foo.bar: Execution default-install of goal org.apache.maven.plugins:maven-install-plugin:3.1.1:install failed: Could not acquire lock(s) -> [Help 1]

I am using maven 3.9.4 on windows:

$ mvn -v
Apache Maven 3.9.4 (dfbb324ad4a7c8fb0bf182e6d91b0ae20e3d2dd9)
Maven home: D:\projects\test\software\mvn
Java version: 17.0.5, vendor: Eclipse Adoptium, runtime: D:\projects\test\software\java
Default locale: en_US, platform encoding: UTF-8
OS name: "windows 10", version: "10.0", arch: "amd64", family: "windows"

I searched for this bug and found issues like MRESOLVER-332 that first look identical or similar but do not really seem to be related so I decided to create this issue.

For this bug I made the following observations:

• it only happens with concurrent builds: mvn -T ...
• is seems to be windows related (at least mainly happens on windows)
• it is in-deterministic and is not so easy to create an isolated and simple project and a reproducible scenario that always results in this error. However, I get this very often in my current project with many modules (500+).
• it is not specific to the maven-install-plugin and also happens from other spots in maven:

I also got this stacktrace:

Suppressed: java.lang.IllegalStateException: Attempt 1: Could not acquire write lock for 'C:\Users\hohwille\.m2\repository\.locks\artifact~com.caucho~com.springsource.com.caucho~3.2.1.lock' in 30 SECONDS
        at org.eclipse.aether.internal.impl.synccontext.named.NamedLockFactoryAdapter$AdaptedLockSyncContext.acquire (NamedLockFactoryAdapter.java:202)
        at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve (DefaultArtifactResolver.java:271)
        at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts (DefaultArtifactResolver.java:259)
        at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies (DefaultRepositorySystem.java:352)

See also this related discussion:
https://github.com/apache/maven-mvnd/issues/836#issuecomment-1702488377

Issue Links

• is related to: MNG-7705 Sporadic failures on multiple builds sharing the same local repo when writing the .lastUpdated file