Maven malheurs: maven-propre-plugin ne trouve pas dans le référentiel

Soupir.

À l'aide de maven 2.2.1, et tout à coup il ne peut pas résoudre le maven-propre-plugin. Et vraiment, comment fou est-il qu'un outil de construction nécessite un plugin pour "nettoyer"?

J'ai essayé de synchroniser mon .m2 répertoire à partir d'une autre machine qui fonctionne bien, et j'obtiens les mêmes résultats.

taproot:~/$ mvn clean package -DskipTests
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] Building CRM Webapp
[INFO]    task-segment: [clean, package]
[INFO] ------------------------------------------------------------------------
Downloading: http://download.java.net/maven/2/org/apache/maven/plugins/maven-clean-plugin/2.2/maven-clean-plugin-2.2.pom
[INFO] Unable to find resource 'org.apache.maven.plugins:maven-clean-plugin:pom:2.2' in repository maven.java.net (http://download.java.net/maven/2)
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-clean-plugin/2.2/maven-clean-plugin-2.2.pom
[WARNING] Unable to get resource 'org.apache.maven.plugins:maven-clean-plugin:pom:2.2' from repository central (http://repo1.maven.org/maven2): Specified destination directory cannot be created: /Users/armhold/.m2/repository/org/apache/maven/plugins/maven-clean-plugin/2.2
Downloading: http://repository.jboss.org/nexus/content/groups/public-jboss//org/apache/maven/plugins/maven-clean-plugin/2.2/maven-clean-plugin-2.2.pom
[INFO] Unable to find resource 'org.apache.maven.plugins:maven-clean-plugin:pom:2.2' in repository public jboss (http://repository.jboss.org/nexus/content/groups/public-jboss/)
Downloading: https://repository.jboss.org/nexus/content/repositories/releases//org/apache/maven/plugins/maven-clean-plugin/2.2/maven-clean-plugin-2.2.pom
[INFO] Unable to find resource 'org.apache.maven.plugins:maven-clean-plugin:pom:2.2' in repository jboss-my-rel (https://repository.jboss.org/nexus/content/repositories/releases/)
Downloading: http://repository.jboss.org/maven2//org/apache/maven/plugins/maven-clean-plugin/2.2/maven-clean-plugin-2.2.pom
[WARNING] Unable to get resource 'org.apache.maven.plugins:maven-clean-plugin:pom:2.2' from repository JBOSS (http://repository.jboss.org/maven2/): Specified destination directory cannot be created: /Users/armhold/.m2/repository/org/apache/maven/plugins/maven-clean-plugin/2.2
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-clean-plugin/2.2/maven-clean-plugin-2.2.pom
[WARNING] Unable to get resource 'org.apache.maven.plugins:maven-clean-plugin:pom:2.2' from repository central (http://repo1.maven.org/maven2): Specified destination directory cannot be created: /Users/armhold/.m2/repository/org/apache/maven/plugins/maven-clean-plugin/2.2
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error building POM (may not be this project's POM).
Project ID: org.apache.maven.plugins:maven-clean-plugin
Reason: POM 'org.apache.maven.plugins:maven-clean-plugin' not found in repository: Unable to download the artifact from any repository
org.apache.maven.plugins:maven-clean-plugin:pom:2.2
from the specified remote repositories:
jboss-my-rel (https://repository.jboss.org/nexus/content/repositories/releases/),
central (http://repo1.maven.org/maven2),
maven.java.net (http://download.java.net/maven/2),
JBOSS (http://repository.jboss.org/maven2/),
public jboss (http://repository.jboss.org/nexus/content/groups/public-jboss/)
for project org.apache.maven.plugins:maven-clean-plugin

Mon pom ressemble à ceci:

<repositories>
<repository>
<id>public jboss</id>
<url>http://repository.jboss.org/nexus/content/groups/public-jboss/</url>
</repository>
<repository>
<id>jboss-my-rel</id>
<url>https://repository.jboss.org/nexus/content/repositories/releases/</url>
</repository>
<repository>
<id>JBOSS</id>
<name>JBoss Repository</name>
<url>http://repository.jboss.org/maven2/</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>maven.java.net</id>
<name>Java.net Maven2 Repository</name>
<url>http://download.java.net/maven/2</url>
</pluginRepository>
</pluginRepositories>