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https://issues.apache.org/jira/browse/MRESOLVER-216?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17459996#comment-17459996
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Rod Widdowson commented on MRESOLVER-216:
-----------------------------------------
Just to note that we have seen this a couple of times on 3.8.1. We have only
ever seen it windows (twice out of two doesn't mean anything tho'). It appears
to be sticky when it has occurred and and both times we cleared it by deleting
parts (not all) of the repository,
This is all part of our CI infrastructure and so debugging it is a wee bit
cumbersome - initially we thought it might have been corruption caused by the
AWS outtage but the dates don't line quite up and the fact that it happened
again last night seems to rule that out. We've seen it twice since Dec 8 but
never previously.
I can provide a debug log of a failed build if that would help.
> [ERROR] Malformed \uxxxx encoding.
> ----------------------------------
>
> Key: MRESOLVER-216
> URL: https://issues.apache.org/jira/browse/MRESOLVER-216
> Project: Maven Resolver
> Issue Type: Bug
> Components: Resolver
> Affects Versions: 1.6.3
> Reporter: Lado Kumsiashvili
> Assignee: Michael Osipov
> Priority: Major
> Fix For: waiting-for-feedback
>
>
> We do still experience this "supposed to be fixed" Bug in maven resolver in
> our team. We use maven 3.8.2 and I guess it is packaged with 1.6.3 resolver.
> It occurs sometimes and never with
> {code:java}
> -Daether.metadataResolver.threads=1 {code}
>
> {code:java}
> Apache Maven 3.8.2 (ea98e05a04480131370aa0c110b8c54cf726c06f)
> Maven home: /usr/local/Cellar/maven/3.8.2/libexec
> Java version: 1.8.0_301, vendor: Oracle Corporation, runtime:
> /Library/Java/JavaVirtualMachines/jdk1.8.0_301.jdk/Contents/Home/jre
> Default locale: en_GB, platform encoding: UTF-8
> OS name: "mac os x", version: "10.16", arch: "x86_64", family: "mac" {code}
>
> This is how the maven run with
> {code:java}
> mvn -X install {code}
> fails
> {code:java}
> [INFO]
> ------------------------------------------------------------------------
> [INFO] BUILD FAILURE
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Total time: 8.035 s
> [INFO] Finished at: 2021-10-06T10:04:20+02:00
> [INFO]
> ------------------------------------------------------------------------
> [ERROR] Malformed \uxxxx encoding.
> java.lang.IllegalArgumentException: Malformed \uxxxx encoding.
> at java.util.Properties.loadConvert (Properties.java:574)
> at java.util.Properties.load0 (Properties.java:391)
> at java.util.Properties.load (Properties.java:341)
> at org.eclipse.aether.internal.impl.TrackingFileManager.read
> (TrackingFileManager.java:56)
> at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.read
> (DefaultUpdateCheckManager.java:511)
> at
> org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkMetadata
> (DefaultUpdateCheckManager.java:250)
> at org.eclipse.aether.internal.impl.DefaultMetadataResolver.resolve
> (DefaultMetadataResolver.java:302)
> at
> org.eclipse.aether.internal.impl.DefaultMetadataResolver.resolveMetadata
> (DefaultMetadataResolver.java:181)
> at
> org.apache.maven.repository.internal.DefaultVersionResolver.resolveVersion
> (DefaultVersionResolver.java:213)
> at
> org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom
> (DefaultArtifactDescriptorReader.java:204)
> at
> org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor
> (DefaultArtifactDescriptorReader.java:171)
> at
> org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.resolveCachedArtifactDescriptor
> (DefaultDependencyCollector.java:538)
> at
> org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.getArtifactDescriptorResult
> (DefaultDependencyCollector.java:523)
> at
> org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.processDependency
> (DefaultDependencyCollector.java:410)
> at
> org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.processDependency
> (DefaultDependencyCollector.java:362)
> at
> org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.process
> (DefaultDependencyCollector.java:349)
> at
> org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.doRecurse
> (DefaultDependencyCollector.java:506)
> at
> org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.processDependency
> (DefaultDependencyCollector.java:458)
> at
> org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.processDependency
> (DefaultDependencyCollector.java:362)
> at
> org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.process
> (DefaultDependencyCollector.java:349)
> at
> org.eclipse.aether.internal.impl.collect.DefaultDependencyCollector.collectDependencies
> (DefaultDependencyCollector.java:254)
> at
> org.eclipse.aether.internal.impl.DefaultRepositorySystem.collectDependencies
> (DefaultRepositorySystem.java:284)
> at org.apache.maven.project.DefaultProjectDependenciesResolver.resolve
> (DefaultProjectDependenciesResolver.java:170)
> at
> org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies
> (LifecycleDependencyResolver.java:243)
> at
> org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.resolveProjectDependencies
> (LifecycleDependencyResolver.java:147)
> at
> org.apache.maven.lifecycle.internal.MojoExecutor.ensureDependenciesAreResolved
> (MojoExecutor.java:248)
> at org.apache.maven.lifecycle.internal.MojoExecutor.execute
> (MojoExecutor.java:202)
> at org.apache.maven.lifecycle.internal.MojoExecutor.execute
> (MojoExecutor.java:156)
> at org.apache.maven.lifecycle.internal.MojoExecutor.execute
> (MojoExecutor.java:148)
> at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
> (LifecycleModuleBuilder.java:117)
> at
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject
> (LifecycleModuleBuilder.java:81)
> at
> org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build
> (SingleThreadedBuilder.java:56)
> at org.apache.maven.lifecycle.internal.LifecycleStarter.execute
> (LifecycleStarter.java:128)
> at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
> at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
> at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
> at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)
> at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)
> at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)
> at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke
> (NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke
> (DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke (Method.java:498)
> 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)
> [ERROR]
> {code}
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