[ 
https://jira.codehaus.org/browse/MNG-5592?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Mark Derricutt updated MNG-5592:
--------------------------------

    Description: 
One one of my larger integration projects that involves A LOT of version ranges 
across a broad range of dependencies I'm seeing that Maven locks up resolving 
dependencies.

I've recently seen this in 3.1.1 but it's happening more and more often under 
3.2.1.

It appears that Eclipse Aether is falling into a circular loop somewhere and 
locking up.

{code}
"main" #1 prio=5 os_prio=31 tid=0x00007f966b001000 nid=0x1903 runnable 
[0x0000000103559000]
   java.lang.Thread.State: RUNNABLE
        at 
org.eclipse.aether.util.graph.transformer.ConflictResolver$ConflictContext.isIncluded(ConflictResolver.java:1062)
        at 
org.eclipse.aether.util.graph.transformer.NearestVersionSelector$1.accept(NearestVersionSelector.java:145)
        at 
org.eclipse.aether.util.graph.visitor.PathRecordingDependencyVisitor.visitEnter(PathRecordingDependencyVisitor.java:88)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:324)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.util.graph.transformer.NearestVersionSelector.newFailure(NearestVersionSelector.java:149)
        at 
org.eclipse.aether.util.graph.transformer.NearestVersionSelector.backtrack(NearestVersionSelector.java:111)
        at 
org.eclipse.aether.util.graph.transformer.NearestVersionSelector.selectVersion(NearestVersionSelector.java:84)
        at 
org.eclipse.aether.util.graph.transformer.ConflictResolver.transformGraph(ConflictResolver.java:187)
        at 
org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:275)
        at 
org.eclipse.aether.internal.impl.DefaultRepositorySystem.collectDependencies(DefaultRepositorySystem.java:317)
        at 
org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:159)
        at 
org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:195)
        at 
org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.resolveProjectDependencies(LifecycleDependencyResolver.java:127)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.ensureDependenciesAreResolved(MojoExecutor.java:257)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:200)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at 
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:108)
        at 
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:76)
        at 
org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
        at 
org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:116)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:361)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:213)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:157)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
{code}

Running with {{-X -U}} I can see that Maven/Aether seems to be looking up A LOT 
of external repositories:

{code}
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://repository.apache.org/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Could not find metadata 
smx3:smx3.applicationmanager.api/maven-metadata.xml in local 
(/Users/amrk/.m2/repository)
[DEBUG] Using connector WagonRepositoryConnector with priority 0.0 for 
http://nexus.smxemail.com/nexus/content/groups/public/
Downloading: 
http://nexus.smxemail.com/nexus/content/groups/public/smx3/smx3.applicationmanager.api/maven-metadata.xml
Downloaded: 
http://nexus.smxemail.com/nexus/content/groups/public/smx3/smx3.applicationmanager.api/maven-metadata.xml
 (489 B at 0.1 KB/sec)
[DEBUG] Writing tracking file 
/Users/amrk/.m2/repository/smx3/smx3.applicationmanager.api/resolver-status.properties
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using connector WagonRepositoryConnector with priority 0.0 for 
http://nexus.smxemail.com/nexus/content/groups/public/
Downloading: 
http://nexus.smxemail.com/nexus/content/groups/public/smx3/smx3.applicationmanager/maven-metadata.xml
Downloaded: 
http://nexus.smxemail.com/nexus/content/groups/public/smx3/smx3.applicationmanager/maven-metadata.xml
 (7 KB at 1.5 KB/sec)
[DEBUG] Writing tracking file 
/Users/amrk/.m2/repository/smx3/smx3.applicationmanager/resolver-status.properties
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Could not find metadata 
smx3:smx3.applicationmanager.api/maven-metadata.xml in local 
(/Users/amrk/.m2/repository)
[DEBUG] Skipped remote update check for 
smx3:smx3.applicationmanager.api/maven-metadata.xml, already updated during 
this session.
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for 
sonatype-nexus-snapshots 
(https://oss.sonatype.org/content/repositories/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for 
sonatype-nexus-snapshots 
(https://oss.sonatype.org/content/repositories/snapshots).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
(http://people.apache.org/repo/m2-snapshot-repository).
[DEBUG] Using mirror Nexus 
(http://nexus.smxemail.com/nexus/content/groups/public/) for central 
(http://repo.maven.apache.org/maven2).
{code}


  was:
One one of my larger integration projects that involves A LOT of version ranges 
across a broad range of dependencies I'm seeing that Maven locks up resolving 
dependencies.

I've recently seen this in 3.1.1 but it's happening more and more often under 
3.2.1.

It appears that Eclipse Aether is falling into a circular loop somewhere and 
locking up.

{code}
"main" #1 prio=5 os_prio=31 tid=0x00007f966b001000 nid=0x1903 runnable 
[0x0000000103559000]
   java.lang.Thread.State: RUNNABLE
        at 
org.eclipse.aether.util.graph.transformer.ConflictResolver$ConflictContext.isIncluded(ConflictResolver.java:1062)
        at 
org.eclipse.aether.util.graph.transformer.NearestVersionSelector$1.accept(NearestVersionSelector.java:145)
        at 
org.eclipse.aether.util.graph.visitor.PathRecordingDependencyVisitor.visitEnter(PathRecordingDependencyVisitor.java:88)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:324)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
        at 
org.eclipse.aether.util.graph.transformer.NearestVersionSelector.newFailure(NearestVersionSelector.java:149)
        at 
org.eclipse.aether.util.graph.transformer.NearestVersionSelector.backtrack(NearestVersionSelector.java:111)
        at 
org.eclipse.aether.util.graph.transformer.NearestVersionSelector.selectVersion(NearestVersionSelector.java:84)
        at 
org.eclipse.aether.util.graph.transformer.ConflictResolver.transformGraph(ConflictResolver.java:187)
        at 
org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:275)
        at 
org.eclipse.aether.internal.impl.DefaultRepositorySystem.collectDependencies(DefaultRepositorySystem.java:317)
        at 
org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:159)
        at 
org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:195)
        at 
org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.resolveProjectDependencies(LifecycleDependencyResolver.java:127)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.ensureDependenciesAreResolved(MojoExecutor.java:257)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:200)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at 
org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at 
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:108)
        at 
org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:76)
        at 
org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
        at 
org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:116)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:361)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:213)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:157)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
{code}



> Maven Dependency Resolution Locks up
> ------------------------------------
>
>                 Key: MNG-5592
>                 URL: https://jira.codehaus.org/browse/MNG-5592
>             Project: Maven 2 & 3
>          Issue Type: Bug
>          Components: Artifacts and Repositories
>    Affects Versions: 3.1.1, 3.2.1
>         Environment: OS/X,  Java 7 and Java 8
>            Reporter: Mark Derricutt
>
> One one of my larger integration projects that involves A LOT of version 
> ranges across a broad range of dependencies I'm seeing that Maven locks up 
> resolving dependencies.
> I've recently seen this in 3.1.1 but it's happening more and more often under 
> 3.2.1.
> It appears that Eclipse Aether is falling into a circular loop somewhere and 
> locking up.
> {code}
> "main" #1 prio=5 os_prio=31 tid=0x00007f966b001000 nid=0x1903 runnable 
> [0x0000000103559000]
>    java.lang.Thread.State: RUNNABLE
>       at 
> org.eclipse.aether.util.graph.transformer.ConflictResolver$ConflictContext.isIncluded(ConflictResolver.java:1062)
>       at 
> org.eclipse.aether.util.graph.transformer.NearestVersionSelector$1.accept(NearestVersionSelector.java:145)
>       at 
> org.eclipse.aether.util.graph.visitor.PathRecordingDependencyVisitor.visitEnter(PathRecordingDependencyVisitor.java:88)
>       at 
> org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:324)
>       at 
> org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
>       at 
> org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
>       at 
> org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
>       at 
> org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
>       at 
> org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
>       at 
> org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
>       at 
> org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
>       at 
> org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
>       at 
> org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
>       at 
> org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
>       at 
> org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
>       at 
> org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
>       at 
> org.eclipse.aether.graph.DefaultDependencyNode.accept(DefaultDependencyNode.java:329)
>       at 
> org.eclipse.aether.util.graph.transformer.NearestVersionSelector.newFailure(NearestVersionSelector.java:149)
>       at 
> org.eclipse.aether.util.graph.transformer.NearestVersionSelector.backtrack(NearestVersionSelector.java:111)
>       at 
> org.eclipse.aether.util.graph.transformer.NearestVersionSelector.selectVersion(NearestVersionSelector.java:84)
>       at 
> org.eclipse.aether.util.graph.transformer.ConflictResolver.transformGraph(ConflictResolver.java:187)
>       at 
> org.eclipse.aether.internal.impl.DefaultDependencyCollector.collectDependencies(DefaultDependencyCollector.java:275)
>       at 
> org.eclipse.aether.internal.impl.DefaultRepositorySystem.collectDependencies(DefaultRepositorySystem.java:317)
>       at 
> org.apache.maven.project.DefaultProjectDependenciesResolver.resolve(DefaultProjectDependenciesResolver.java:159)
>       at 
> org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.getDependencies(LifecycleDependencyResolver.java:195)
>       at 
> org.apache.maven.lifecycle.internal.LifecycleDependencyResolver.resolveProjectDependencies(LifecycleDependencyResolver.java:127)
>       at 
> org.apache.maven.lifecycle.internal.MojoExecutor.ensureDependenciesAreResolved(MojoExecutor.java:257)
>       at 
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:200)
>       at 
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
>       at 
> org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
>       at 
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:108)
>       at 
> org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:76)
>       at 
> org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
>       at 
> org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:116)
>       at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:361)
>       at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155)
>       at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584)
>       at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:213)
>       at org.apache.maven.cli.MavenCli.main(MavenCli.java:157)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> {code}
> Running with {{-X -U}} I can see that Maven/Aether seems to be looking up A 
> LOT of external repositories:
> {code}
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://repository.apache.org/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Could not find metadata 
> smx3:smx3.applicationmanager.api/maven-metadata.xml in local 
> (/Users/amrk/.m2/repository)
> [DEBUG] Using connector WagonRepositoryConnector with priority 0.0 for 
> http://nexus.smxemail.com/nexus/content/groups/public/
> Downloading: 
> http://nexus.smxemail.com/nexus/content/groups/public/smx3/smx3.applicationmanager.api/maven-metadata.xml
> Downloaded: 
> http://nexus.smxemail.com/nexus/content/groups/public/smx3/smx3.applicationmanager.api/maven-metadata.xml
>  (489 B at 0.1 KB/sec)
> [DEBUG] Writing tracking file 
> /Users/amrk/.m2/repository/smx3/smx3.applicationmanager.api/resolver-status.properties
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using connector WagonRepositoryConnector with priority 0.0 for 
> http://nexus.smxemail.com/nexus/content/groups/public/
> Downloading: 
> http://nexus.smxemail.com/nexus/content/groups/public/smx3/smx3.applicationmanager/maven-metadata.xml
> Downloaded: 
> http://nexus.smxemail.com/nexus/content/groups/public/smx3/smx3.applicationmanager/maven-metadata.xml
>  (7 KB at 1.5 KB/sec)
> [DEBUG] Writing tracking file 
> /Users/amrk/.m2/repository/smx3/smx3.applicationmanager/resolver-status.properties
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Could not find metadata 
> smx3:smx3.applicationmanager.api/maven-metadata.xml in local 
> (/Users/amrk/.m2/repository)
> [DEBUG] Skipped remote update check for 
> smx3:smx3.applicationmanager.api/maven-metadata.xml, already updated during 
> this session.
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for 
> sonatype-nexus-snapshots 
> (https://oss.sonatype.org/content/repositories/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for 
> sonatype-nexus-snapshots 
> (https://oss.sonatype.org/content/repositories/snapshots).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for apache.snapshots 
> (http://people.apache.org/repo/m2-snapshot-repository).
> [DEBUG] Using mirror Nexus 
> (http://nexus.smxemail.com/nexus/content/groups/public/) for central 
> (http://repo.maven.apache.org/maven2).
> {code}



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