maven scalastyle plugin debug output

log.txt

% mvn -X scalastyle:check                                                    :(
Apache Maven 3.0.5 (rNON-CANONICAL_2013-02-25_10-23_root; 2013-02-25 11:23:59+0100)
Maven home: /opt/maven
Java version: 1.6.0_27, vendor: Sun Microsystems Inc.
Java home: /usr/lib/jvm/java-6-openjdk/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "3.8.10-1-arch", arch: "amd64", family: "unix"
[INFO] Error stacktraces are turned on.
[DEBUG] Reading global settings from /opt/maven/conf/settings.xml
[DEBUG] Reading user settings from /home/antoras/.m2/settings.xml
[DEBUG] Using local repository at /home/antoras/.m2/repository
[DEBUG] Using manager EnhancedLocalRepositoryManager with priority 10 for /home/antoras/.m2/repository
[INFO] Scanning for projects...
[DEBUG] Extension realms for project org.scala-ide:org.scala-ide.build:pom:4.0.0-SNAPSHOT: (none)
[DEBUG] Looking up lifecyle mappings for packaging pom from ClassRealm[plexus.core, parent: null]
[DEBUG] Resolving plugin prefix scalastyle from [org.apache.maven.plugins, org.codehaus.mojo]
[DEBUG] Could not find metadata org.scalastyle:scalastyle-maven-plugin:0.2.1-SNAPSHOT/maven-metadata.xml in local (/home/antoras/.m2/repository)
[DEBUG] Could not find metadata org.scalastyle:scalastyle-maven-plugin:0.2.1-SNAPSHOT/maven-metadata.xml in local (/home/antoras/.m2/repository)
[WARNING] The POM for org.scalastyle:scalastyle-maven-plugin:jar:0.2.1-SNAPSHOT is missing, no dependency information available
[WARNING] Failed to retrieve plugin descriptor for org.scalastyle:scalastyle-maven-plugin:0.2.1-SNAPSHOT: Plugin org.scalastyle:scalastyle-maven-plugin:0.2.1-SNAPSHOT or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.scalastyle:scalastyle-maven-plugin:jar:0.2.1-SNAPSHOT
org.apache.maven.plugin.PluginResolutionException: Plugin org.scalastyle:scalastyle-maven-plugin:0.2.1-SNAPSHOT or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.scalastyle:scalastyle-maven-plugin:jar:0.2.1-SNAPSHOT
	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.DefaultBuildPluginManager.loadPlugin(DefaultBuildPluginManager.java:59)
	at org.apache.maven.plugin.prefix.internal.DefaultPluginPrefixResolver.resolveFromProject(DefaultPluginPrefixResolver.java:139)
	at org.apache.maven.plugin.prefix.internal.DefaultPluginPrefixResolver.resolveFromProject(DefaultPluginPrefixResolver.java:126)
	at org.apache.maven.plugin.prefix.internal.DefaultPluginPrefixResolver.resolve(DefaultPluginPrefixResolver.java:86)
	at org.apache.maven.lifecycle.internal.MojoDescriptorCreator.findPluginForPrefix(MojoDescriptorCreator.java:262)
	at org.apache.maven.lifecycle.internal.MojoDescriptorCreator.getMojoDescriptor(MojoDescriptorCreator.java:222)
	at org.apache.maven.lifecycle.internal.DefaultLifecycleTaskSegmentCalculator.calculateTaskSegments(DefaultLifecycleTaskSegmentCalculator.java:106)
	at org.apache.maven.lifecycle.internal.DefaultLifecycleTaskSegmentCalculator.calculateTaskSegments(DefaultLifecycleTaskSegmentCalculator.java:86)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:98)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
	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:616)
	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.sonatype.aether.resolution.ArtifactDescriptorException: Failed to read artifact descriptor for org.scalastyle:scalastyle-maven-plugin:jar:0.2.1-SNAPSHOT
	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)
	... 23 more
Caused by: org.sonatype.aether.resolution.ArtifactResolutionException: Could not find artifact org.scalastyle:scalastyle-maven-plugin:pom:0.2.1-SNAPSHOT
	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)
	... 26 more
Caused by: org.sonatype.aether.transfer.ArtifactNotFoundException: Could not find artifact org.scalastyle:scalastyle-maven-plugin:pom:0.2.1-SNAPSHOT
	at org.sonatype.aether.impl.internal.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:528)
	... 29 more
[DEBUG] Could not find metadata org.apache.maven.plugins/maven-metadata.xml in local (/home/antoras/.m2/repository)
[DEBUG] Skipped remote update check for org.apache.maven.plugins/maven-metadata.xml, locally cached metadata up-to-date.
[DEBUG] Could not find metadata org.codehaus.mojo/maven-metadata.xml in local (/home/antoras/.m2/repository)
[DEBUG] Skipped remote update check for org.codehaus.mojo/maven-metadata.xml, locally cached metadata up-to-date.
[DEBUG] Could not find metadata org.apache.maven.plugins/maven-metadata.xml in local (/home/antoras/.m2/repository)
[DEBUG] Could not find metadata org.codehaus.mojo/maven-metadata.xml in local (/home/antoras/.m2/repository)
[DEBUG] Using connector WagonRepositoryConnector with priority 0 for http://repo.maven.apache.org/maven2
[DEBUG] Using connector WagonRepositoryConnector with priority 0 for http://repo.maven.apache.org/maven2
Downloading: http://repo.maven.apache.org/maven2/org/codehaus/mojo/maven-metadata.xml
Downloading: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-metadata.xml
Downloaded: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-metadata.xml (11 KB at 12.3 KB/sec)
[DEBUG] Writing resolution tracking file /home/antoras/.m2/repository/org/apache/maven/plugins/resolver-status.properties
Downloaded: http://repo.maven.apache.org/maven2/org/codehaus/mojo/maven-metadata.xml (22 KB at 24.1 KB/sec)
[DEBUG] Writing resolution tracking file /home/antoras/.m2/repository/org/codehaus/mojo/resolver-status.properties
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.255s
[INFO] Finished at: Thu May 16 13:00:14 CEST 2013
[INFO] Final Memory: 7M/112M
[INFO] ------------------------------------------------------------------------
[ERROR] No plugin found for prefix 'scalastyle' in the current project and in the plugin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (/home/antoras/.m2/repository), central (http://repo.maven.apache.org/maven2)] -> [Help 1]
org.apache.maven.plugin.prefix.NoPluginFoundForPrefixException: No plugin found for prefix 'scalastyle' in the current project and in the plugin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (/home/antoras/.m2/repository), central (http://repo.maven.apache.org/maven2)]
	at org.apache.maven.plugin.prefix.internal.DefaultPluginPrefixResolver.resolve(DefaultPluginPrefixResolver.java:94)
	at org.apache.maven.lifecycle.internal.MojoDescriptorCreator.findPluginForPrefix(MojoDescriptorCreator.java:262)
	at org.apache.maven.lifecycle.internal.MojoDescriptorCreator.getMojoDescriptor(MojoDescriptorCreator.java:222)
	at org.apache.maven.lifecycle.internal.DefaultLifecycleTaskSegmentCalculator.calculateTaskSegments(DefaultLifecycleTaskSegmentCalculator.java:106)
	at org.apache.maven.lifecycle.internal.DefaultLifecycleTaskSegmentCalculator.calculateTaskSegments(DefaultLifecycleTaskSegmentCalculator.java:86)
	at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:98)
	at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
	at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
	at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
	at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
	at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
	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:616)
	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)
[ERROR] 
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/NoPluginFoundForPrefixException