Jenkins ne peut pas construire avec Maven. Peut-être proxy-problème

Je suis en train de créer un environnement avec Maven, Jenkins, SVN et Nexus.
J'ai ajouté les Travaux de Jenkins via SVN, mais Jenkins ne pouvez pas construire ces Emplois en raison d'un Maven erreur.

Voici l'erreur-journal

[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building imagetools 1.0
[INFO] ------------------------------------------------------------------------
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-dependency-plugin/2.1/maven-dependency-plugin-2.1.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 21.756s
[INFO] Finished at: Mon Apr 22 11:43:05 CEST 2013
[INFO] Final Memory: 7M/152M
[INFO] ------------------------------------------------------------------------
[JENKINS] Archiving C:\Users\franzm\.jenkins\jobs\ImageTools\workspace\pom.xml to C:\Users\franzm\.jenkins\jobs\ImageTools\modules\com.ee$imagetools\builds\2013-04-22_11-42-40\archive\com.ee\imagetools\1.0\imagetools-1.0.pom
Warte bis Jenkins die Datensammlung abgeschlossen hat
mavenExecutionResult exceptions not empty
message : Plugin org.apache.maven.plugins:maven-dependency-plugin:2.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-dependency-plugin:jar:2.1
cause : Failed to read artifact descriptor for org.apache.maven.plugins:maven-dependency-plugin:jar:2.1
Stack trace : 
org.apache.maven.plugin.PluginResolutionException: Plugin org.apache.maven.plugins:maven-dependency-plugin:2.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-dependency-plugin:jar:2.1
at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve(DefaultPluginDependenciesResolver.java:129)
at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getPluginDescriptor(DefaultMavenPluginManager.java:142)
at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getMojoDescriptor(DefaultMavenPluginManager.java:261)
at org.apache.maven.plugin.DefaultBuildPluginManager.getMojoDescriptor(DefaultBuildPluginManager.java:185)
at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.setupMojoExecution(DefaultLifecycleExecutionPlanCalculator.java:152)
at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.setupMojoExecutions(DefaultLifecycleExecutionPlanCalculator.java:139)
at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan(DefaultLifecycleExecutionPlanCalculator.java:116)
at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan(DefaultLifecycleExecutionPlanCalculator.java:129)
at org.apache.maven.lifecycle.internal.BuilderCommon.resolveBuildPlan(BuilderCommon.java:92)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:81)
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:320)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
at org.jvnet.hudson.maven3.launcher.Maven3Launcher.main(Maven3Launcher.java:79)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchStandard(Launcher.java:329)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:239)
at org.jvnet.hudson.maven3.agent.Maven3Main.launch(Maven3Main.java:158)
at hudson.maven.Maven3Builder.call(Maven3Builder.java:100)
at hudson.maven.Maven3Builder.call(Maven3Builder.java:66)
at hudson.remoting.UserRequest.perform(UserRequest.java:118)
at hudson.remoting.UserRequest.perform(UserRequest.java:48)
at hudson.remoting.Request$2.run(Request.java:326)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
Caused by: org.sonatype.aether.resolution.ArtifactDescriptorException: Failed to read artifact descriptor for org.apache.maven.plugins:maven-dependency-plugin:jar:2.1
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:296)
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.readArtifactDescriptor(DefaultArtifactDescriptorReader.java:186)
at org.sonatype.aether.impl.internal.DefaultRepositorySystem.readArtifactDescriptor(DefaultRepositorySystem.java:279)
at org.apache.maven.plugin.internal.DefaultPluginDependenciesResolver.resolve(DefaultPluginDependenciesResolver.java:115)
... 33 more
Caused by: org.sonatype.aether.resolution.ArtifactResolutionException: Could not transfer artifact org.apache.maven.plugins:maven-dependency-plugin:pom:2.1 from/to central (http://repo.maven.apache.org/maven2): Connection to http://repo.maven.apache.org refused
at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:538)
at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:216)
at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolveArtifact(DefaultArtifactResolver.java:193)
at org.apache.maven.repository.internal.DefaultArtifactDescriptorReader.loadPom(DefaultArtifactDescriptorReader.java:281)
... 36 more
Caused by: org.sonatype.aether.transfer.ArtifactTransferException: Could not transfer artifact org.apache.maven.plugins:maven-dependency-plugin:pom:2.1 from/to central (http://repo.maven.apache.org/maven2): Connection to http://repo.maven.apache.org refused
at org.sonatype.aether.connector.wagon.WagonRepositoryConnector$4.wrap(WagonRepositoryConnector.java:951)
at org.sonatype.aether.connector.wagon.WagonRepositoryConnector$4.wrap(WagonRepositoryConnector.java:941)
at org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.run(WagonRepositoryConnector.java:669)
at org.sonatype.aether.util.concurrency.RunnableErrorForwarder$1.run(RunnableErrorForwarder.java:60)
... 3 more
Caused by: org.apache.maven.wagon.TransferFailedException: Connection to http://repo.maven.apache.org refused
at org.apache.maven.wagon.shared.http4.AbstractHttpClientWagon.resourceExists(AbstractHttpClientWagon.java:597)
at org.sonatype.aether.connector.wagon.WagonRepositoryConnector$GetTask.run(WagonRepositoryConnector.java:577)
... 4 more
Caused by: org.apache.maven.wagon.providers.http.httpclient.conn.HttpHostConnectException: Connection to http://repo.maven.apache.org refused
at org.apache.maven.wagon.providers.http.httpclient.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:158)
at org.apache.maven.wagon.providers.http.httpclient.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:149)
at org.apache.maven.wagon.providers.http.httpclient.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:121)
at org.apache.maven.wagon.providers.http.httpclient.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:573)
at org.apache.maven.wagon.providers.http.httpclient.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:425)
at org.apache.maven.wagon.providers.http.httpclient.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
at org.apache.maven.wagon.providers.http.httpclient.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)
at org.apache.maven.wagon.shared.http4.AbstractHttpClientWagon.execute(AbstractHttpClientWagon.java:674)
at org.apache.maven.wagon.shared.http4.AbstractHttpClientWagon.resourceExists(AbstractHttpClientWagon.java:593)
... 5 more
Caused by: java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:69)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:157)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)
at java.net.Socket.connect(Socket.java:579)
at org.apache.maven.wagon.providers.http.httpclient.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:123)
at org.apache.maven.wagon.providers.http.httpclient.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:148)
... 13 more
channel stopped
Finished: FAILURE

Si je build Jenkins avec Maven via la ligne de commande, tout fonctionne. Il télécharge toutes les dépendances de la Nexus. Je dois aussi ajouter un Proxy pour Maven.

J'ai téléchargé le Fichier de configuration de la Gestion des Plug-In pour ajouter un settings.xml pour Maven:

 <mirror>  
<id>nexus</id>  
<url>http://mynexusadress.com:6060/nexus/content/groups/public</url> <mirrorOf>central</mirrorOf>

L'accès au proxy est configuré dans le Nexus des fichiers de configuration.
(Comme il est dit, à l'aide de Maven en local fonctionne très bien, il télécharge toutes les dépendances de la Nexus et télécharge le construire de pot pour elle)