The Maven dependency plugin does not seem to be downloading all required jars for the site plugin.
Some bug reports, such as http://jira.codehaus.org/browse/MDEP-126 make me think that explicitly adding a plugin to a pom should be enough to make dependency:go-offline resolve that plugin's dependencies correctly. What happens is this: 1. Clear local repository 2. Run mvn dependency:go-offline 3. Run mvn -o site The build fails with: The plugin 'org.apache.maven.plugins:maven-project-info-reports-plugin' does not exist or no valid version could be found And a quick look confirms that the artifact is indeed not in the local repo. ... The POM: <project xmlns="http://maven.apache.org/POM/4.0.0"; xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd";> <modelVersion>4.0.0</modelVersion> <groupId>foo.bar</groupId> <artifactId>foo</artifactId> <version>1</version> <build> <plugins> <plugin> <artifactId>maven-site-plugin</artifactId> </plugin> </plugins> </build> </project> I have also tried: ... <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-site-plugin</artifactId> <version>2.0-beta-6</version> </plugin> ... And listing the plugin in dependencies, instead of and in addition to plugins. Console output: + Error stacktraces are turned on. Maven version: 2.0.9 Java version: 1.5.0_12 OS name: "windows xp" version: "5.1" arch: "x86" Family: "windows" [DEBUG] Building Maven user-level plugin registry from: 'C:\Documents and Settings\username\.m2\plugin-registry.xml' [DEBUG] Building Maven global-level plugin registry from: 'C:\maven\apache-maven-2.0.9\conf\plugin-registry.xml' [INFO] NOTE: Maven is executing in offline mode. Any artifacts not already in your local repository will be inaccessible. [INFO] Scanning for projects... [INFO] ------------------------------------------------------------------------ [INFO] Building Unnamed - foo.bar:foo:jar:1 [INFO] task-segment: [site] [INFO] ------------------------------------------------------------------------ [DEBUG] Retrieving parent-POM: org.apache.maven.plugins:maven-plugins::10 for project: null:maven-site-plugin:maven-plugin:2.0-beta-6 from the repository. [DEBUG] Retrieving parent-POM: org.apache.maven:maven-parent::7 for project: org.apache.maven.plugins:maven-plugins:pom:10 from the repository. [DEBUG] Retrieving parent-POM: org.apache:apache::4 for project: org.apache.maven:maven-parent:pom:7 from the repository. [DEBUG] System is offline. Cannot resolve metadata: Repository Metadata -------------------------- GroupId: org.apache.maven.plugins ArtifactId: maven-project-info-reports-plugin Metadata Type: org.apache.maven.artifact.repository.metadata.ArtifactRepositoryMetadata [DEBUG] System is offline. Cannot resolve metadata: Repository Metadata -------------------------- GroupId: org.apache.maven.plugins ArtifactId: maven-project-info-reports-plugin Metadata Type: org.apache.maven.artifact.repository.metadata.ArtifactRepositoryMetadata [DEBUG] maven-project-info-reports-plugin: using locally installed snapshot [DEBUG] Artifact not found - using stub model: Unable to determine the latest version org.apache.maven.plugins:maven-project-info-reports-plugin:pom:LATEST [DEBUG] Using defaults for missing POM org.apache.maven.plugins:maven-project-info-reports-plugin:pom:LATEST [DEBUG] maven-project-info-reports-plugin: using locally installed snapshot [DEBUG] Artifact not found - using stub model: Unable to determine the release version org.apache.maven.plugins:maven-project-info-reports-plugin:pom:RELEASE [DEBUG] Using defaults for missing POM org.apache.maven.plugins:maven-project-info-reports-plugin:pom:RELEASE [INFO] ------------------------------------------------------------------------ [ERROR] BUILD ERROR [INFO] ------------------------------------------------------------------------ [INFO] The plugin 'org.apache.maven.plugins:maven-project-info-reports-plugin' does not exist or no valid version could be found [INFO] ------------------------------------------------------------------------ [DEBUG] Trace org.apache.maven.lifecycle.LifecycleExecutionException: The plugin 'org.apache.maven.plugins:maven-project-info-reports-plugin' does not exist or no valid version could be found at org.apache.maven.lifecycle.DefaultLifecycleExecutor.verifyReportPlugin(DefaultLifecycleExecutor.java:1343) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:685) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.getReports(DefaultLifecycleExecutor.java:661) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:536) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:499) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:478) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:330) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:291) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:142) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:336) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:129) at org.apache.maven.cli.MavenCli.main(MavenCli.java:287) 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.classworlds.Launcher.launchEnhanced(Launcher.java:315) at org.codehaus.classworlds.Launcher.launch(Launcher.java:255) at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430) at org.codehaus.classworlds.Launcher.main(Launcher.java:375) Caused by: org.apache.maven.plugin.version.PluginVersionNotFoundException: The plugin 'org.apache.maven.plugins:maven-project-info-reports-plugin' does not exist or no valid version could be found at org.apache.maven.plugin.version.DefaultPluginVersionManager.resolvePluginVersion(DefaultPluginVersionManager.java:229) at org.apache.maven.plugin.version.DefaultPluginVersionManager.resolveReportPluginVersion(DefaultPluginVersionManager.java:98) at org.apache.maven.plugin.DefaultPluginManager.verifyReportPlugin(DefaultPluginManager.java:556) at org.apache.maven.lifecycle.DefaultLifecycleExecutor.verifyReportPlugin(DefaultLifecycleExecutor.java:1314) ... 19 more [INFO] ------------------------------------------------------------------------ [INFO] Total time: 1 second [INFO] Finished at: Thu Jan 08 16:27:05 EST 2009 [INFO] Final Memory: 2M/5M [INFO] ------------------------------------------------------------------------ Josiah Ulfers
