[ 
http://jira.codehaus.org/browse/MNG-4864?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=239689#action_239689
 ] 

Benjamin Bentmann commented on MNG-4864:
----------------------------------------

bq. Java home: C:\bea923\jdk150_12\jre 
Could you please retry this with a Sun/Oracle JRE as this looks like a JRE bug.

> npe when transferring artifacts
> -------------------------------
>
>                 Key: MNG-4864
>                 URL: http://jira.codehaus.org/browse/MNG-4864
>             Project: Maven 2 & 3
>          Issue Type: Bug
>    Affects Versions: 3.0
>            Reporter: jgon2
>
> I get the following NPE when running a mvn clean install with an empty local 
> repository. The two stracktraces below show that the build breaks with 
> different artifacts but always at the same place. 
> If I relaunch the build several times, it finally succeeds. 
> {code}
> Caused by: java.lang.NullPointerException 
>         at 
> org.apache.maven.cli.ConsoleMavenTransferListener.transferProgressed(ConsoleMavenTransferListener.java:60)
>  
> [ERROR] Failed to execute goal on project stdlib-core: Could not resolve 
> dependencies for project com.mycompany:stdlib-core:jar:3.0.0-SNAPSHOT: Could 
> not transfer artifact org.apache.maven:maven-repository-metadata:jar:2.0.8 
> from nexus (http://maven/nexus/content/groups/public): NullPointerException 
> -> [Help 1] 
> org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute 
> goal on project stdlib-core: Could not resolve dependencies for project 
> com.mycompany:stdlib-core:jar:3.0.0-SNAPSHOT: Could not transfer artifact 
> org.apache.maven:maven-repository-metadata:jar:2.0.8 from nexus 
> (http://maven/nexus/content/groups/public): NullPointerException 
>         at 
> org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:190)
>  
>         at 
> org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.resolveProjectDependencies(LifecycleDependencyResolver.java:104)
>  
>         at 
> org.apache.maven.lifecycle.internal.MojoExecutor.ensureDependenciesAreResolved(MojoExecutor.java:244)
>  
>         at 
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:187)
>  
>         at 
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
>  
>         at 
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:140)
>  
>         at 
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
>  
>         at 
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
>  
>         at 
> org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
>  
>         at 
> org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
>  
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:314) 
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:151) 
>         at org.apache.maven.cli.MavenCli.execute(MavenCli.java:445) 
>         at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:168) 
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:132) 
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
>         at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
>         at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>  
>         at java.lang.reflect.Method.invoke(Method.java:585) 
>         at 
> org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
>  
>         at 
> org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230) 
>         at 
> org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
>  
>         at 
> org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352) 
> Caused by: org.apache.maven.project.DependencyResolutionException: Could not 
> resolve dependencies for project 
> com.mycompany:stdlib-core:jar:3.0.0-SNAPSHOT: Could not transfer artifact 
> org.apache.maven:maven-repository-metadata:jar:2.0.8 from nexus 
> (http://maven/nexus/content/groups/public): NullPointerException 
>         at 
> org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:156)
>  
>         at 
> org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:165)
>  
>         ... 22 more 
> Caused by: org.sonatype.aether.resolution.ArtifactResolutionException: Could 
> not transfer artifact org.apache.maven:maven-repository-metadata:jar:2.0.8 
> from nexus (http://maven/nexus/content/groups/public): NullPointerException 
>         at 
> org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:488)
>  
>         at 
> org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveArtifacts(DefaultRepositorySystem.java:258)
>  
>         at 
> org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:288)
>  
>         at 
> org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:150)
>  
>         ... 23 more 
> Caused by: org.sonatype.aether.transfer.ArtifactTransferException: Could not 
> transfer artifact org.apache.maven:maven-repository-metadata:jar:2.0.8 from 
> nexus (http://maven/nexus/content/groups/public): NullPointerException 
>         at 
> org.sonatype.aether.connector.wagon.WagonRepositoryConnector$4.wrap(WagonRepositoryConnector.java:858)
>  
>         at 
> org.sonatype.aether.connector.wagon.WagonRepositoryConnector$4.wrap(WagonRepositoryConnector.java:849)
>  
>         at 
> org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.flush(WagonRepositoryConnector.java:602)
>  
>         at 
> org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.flush(WagonRepositoryConnector.java:596)
>  
>         at 
> org.sonatype.aether.connector.wagon.WagonRepositoryConnector.get(WagonRepositoryConnector.java:355)
>  
>         at 
> org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:407)
>  
>         ... 26 more 
> Caused by: java.lang.NullPointerException 
>         at 
> org.apache.maven.cli.ConsoleMavenTransferListener.transferProgressed(ConsoleMavenTransferListener.java:60)
>  
>         at 
> org.sonatype.aether.connector.wagon.WagonTransferListenerAdapter.transferProgress(WagonTransferListenerAdapter.java:69)
>  
>         at 
> org.apache.maven.wagon.events.TransferEventSupport.fireTransferProgress(TransferEventSupport.java:124)
>  
>         at 
> org.apache.maven.wagon.AbstractWagon.fireTransferProgress(AbstractWagon.java:505)
>  
>         at 
> org.apache.maven.wagon.AbstractWagon.transfer(AbstractWagon.java:490) 
>         at 
> org.apache.maven.wagon.AbstractWagon.getTransfer(AbstractWagon.java:328) 
>         at 
> org.apache.maven.wagon.AbstractWagon.getTransfer(AbstractWagon.java:299) 
>         at 
> org.apache.maven.wagon.AbstractWagon.getTransfer(AbstractWagon.java:276) 
>         at org.apache.maven.wagon.StreamWagon.getIfNewer(StreamWagon.java:97) 
>         at org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:61) 
>         at 
> org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.run(WagonRepositoryConnector.java:511)
>  
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
>  
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
>  
>         at java.lang.Thread.run(Thread.java:595) 
> [ERROR] Failed to execute goal on project stdlib-native: Could not resolve 
> dependencies for project com.mycompany:stdlib-native:jar:3.0.0-SNAPSHOT: 
> Could not transfer artifact org.jboss.security:jbosssx-client:jar:2.0.3.SP1 
> from nexus (http://maven/nexus/content/groups/public): NullPointerException 
> -> [Help 1] 
> org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute 
> goal on project stdlib-native: Could not resolve dependencies for project 
> com.mycompany:stdlib-native:jar:3.0.0-SNAPSHOT: Could not transfer artifact 
> org.jboss.security:jbosssx-client:jar:2.0.3.SP1 from nexus 
> (http://maven/nexus/content/groups/public): NullPointerException 
>         at 
> org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:190)
>  
>         at 
> org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.resolveProjectDependencies(LifecycleDependencyResolver.java:104)
>  
>         at 
> org.apache.maven.lifecycle.internal.MojoExecutor.ensureDependenciesAreResolved(MojoExecutor.java:244)
>  
>         at 
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:187)
>  
>         at 
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148)
>  
>         at 
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:140)
>  
>         at 
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
>  
>         at 
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
>  
>         at 
> org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
>  
>         at 
> org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
>  
>         at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:314) 
>         at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:151) 
>         at org.apache.maven.cli.MavenCli.execute(MavenCli.java:445) 
>         at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:168) 
>         at org.apache.maven.cli.MavenCli.main(MavenCli.java:132) 
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
>         at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
>         at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>  
>         at java.lang.reflect.Method.invoke(Method.java:585) 
>         at 
> org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
>  
>         at 
> org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230) 
>         at 
> org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
>  
>         at 
> org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352) 
> Caused by: org.apache.maven.project.DependencyResolutionException: Could not 
> resolve dependencies for project 
> com.mycompany:stdlib-native:jar:3.0.0-SNAPSHOT: Could not transfer artifact 
> org.jboss.security:jbosssx-client:jar:2.0.3.SP1 from nexus 
> (http://maven/nexus/content/groups/public): NullPointerException 
>         at 
> org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:156)
>  
>         at 
> org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:165)
>  
>         ... 22 more 
> Caused by: org.sonatype.aether.resolution.ArtifactResolutionException: Could 
> not transfer artifact org.jboss.security:jbosssx-client:jar:2.0.3.SP1 from 
> nexus (http://maven/nexus/content/groups/public): NullPointerException 
>         at 
> org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:488)
>  
>         at 
> org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveArtifacts(DefaultRepositorySystem.java:258)
>  
>         at 
> org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:288)
>  
>         at 
> org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:150)
>  
>         ... 23 more 
> Caused by: org.sonatype.aether.transfer.ArtifactTransferException: Could not 
> transfer artifact org.jboss.security:jbosssx-client:jar:2.0.3.SP1 from nexus 
> (http://maven/nexus/content/groups/public): NullPointerException 
>         at 
> org.sonatype.aether.connector.wagon.WagonRepositoryConnector$4.wrap(WagonRepositoryConnector.java:858)
>  
>         at 
> org.sonatype.aether.connector.wagon.WagonRepositoryConnector$4.wrap(WagonRepositoryConnector.java:849)
>  
>         at 
> org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.flush(WagonRepositoryConnector.java:602)
>  
>         at 
> org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.flush(WagonRepositoryConnector.java:596)
>  
>         at 
> org.sonatype.aether.connector.wagon.WagonRepositoryConnector.get(WagonRepositoryConnector.java:355)
>  
>         at 
> org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:407)
>  
>         ... 26 more 
> Caused by: java.lang.NullPointerException 
>         at 
> org.apache.maven.cli.ConsoleMavenTransferListener.transferProgressed(ConsoleMavenTransferListener.java:60)
>  
>         at 
> org.sonatype.aether.connector.wagon.WagonTransferListenerAdapter.transferProgress(WagonTransferListenerAdapter.java:69)
>  
>         at 
> org.apache.maven.wagon.events.TransferEventSupport.fireTransferProgress(TransferEventSupport.java:124)
>  
>         at 
> org.apache.maven.wagon.AbstractWagon.fireTransferProgress(AbstractWagon.java:505)
>  
>         at 
> org.apache.maven.wagon.AbstractWagon.transfer(AbstractWagon.java:490) 
>         at 
> org.apache.maven.wagon.AbstractWagon.getTransfer(AbstractWagon.java:328) 
>         at 
> org.apache.maven.wagon.AbstractWagon.getTransfer(AbstractWagon.java:299) 
>         at 
> org.apache.maven.wagon.AbstractWagon.getTransfer(AbstractWagon.java:276) 
>         at org.apache.maven.wagon.StreamWagon.getIfNewer(StreamWagon.java:97) 
>         at org.apache.maven.wagon.StreamWagon.get(StreamWagon.java:61) 
>         at 
> org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.run(WagonRepositoryConnector.java:511)
>  
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
>  
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
>  
>         at java.lang.Thread.run(Thread.java:595)
> {code}

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