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Benjamin Bentmann commented on MSITE-507: ----------------------------------------- A workaround for now seems to be to add cedarsoft-skin as a plugin dependency for the maven-site-plugin. Apparently the Site Plugin's class path leaks completely into the reports, which probably should also be fixed sometime. > Site generation fails for small project > --------------------------------------- > > Key: MSITE-507 > URL: http://jira.codehaus.org/browse/MSITE-507 > Project: Maven 2.x Site Plugin > Issue Type: Bug > Affects Versions: 3.0-beta-2 > Reporter: Johannes Schneider > Priority: Critical > Attachments: proj.zip > > > I get that exception for my project and really don't know what is going on. > I am sure this is a fault on my side, but I think there should be a better > error message: > [INFO] Generating "JavaNCSS Report" report --- javancss-maven-plugin:2.0 > [INFO] Generating "Source Xref" report --- maven-jxr-plugin:2.1 > [INFO] > ------------------------------------------------------------------------ > [INFO] BUILD FAILURE > [INFO] > ------------------------------------------------------------------------ > [INFO] Total time: 9.623s > [INFO] Finished at: Thu Sep 23 17:05:11 CEST 2010 > [INFO] Final Memory: 31M/233M > [INFO] > ------------------------------------------------------------------------ > [ERROR] Failed to execute goal > org.apache.maven.plugins:maven-site-plugin:3.0-beta-2:site (default-site) on > project my-artifact-id: Execution default-site of goal > org.apache.maven.plugins:maven-site-plugin:3.0-beta-2:site failed. > NullPointerException -> [Help 1] > org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute > goal org.apache.maven.plugins:maven-site-plugin:3.0-beta-2:site > (default-site) on project my-artifact-id: Execution default-site of goal > org.apache.maven.plugins:maven-site-plugin:3.0-beta-2:site failed. > at > org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:211) > at > org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148) > at > org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:140) > at > org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84) > 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:315) > at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:152) > at org.apache.maven.cli.MavenCli.execute(MavenCli.java:445) > at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:168) > at org.apache.maven.cli.MavenCli.main(MavenCli.java:132) > 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:597) > 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.apache.maven.plugin.PluginExecutionException: Execution > default-site of goal > org.apache.maven.plugins:maven-site-plugin:3.0-beta-2:site failed. > at > org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:116) > at > org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:195) > ... 19 more > Caused by: java.lang.NullPointerException > at org.codehaus.plexus.util.FileUtils.copyURLToFile(FileUtils.java:820) > at > org.apache.maven.plugin.jxr.AbstractJxrReport.copyRequiredResources(AbstractJxrReport.java:330) > at > org.apache.maven.plugin.jxr.AbstractJxrReport.createXref(AbstractJxrReport.java:265) > at > org.apache.maven.plugin.jxr.AbstractJxrReport.executeReport(AbstractJxrReport.java:409) > at > org.apache.maven.reporting.AbstractMavenReport.generate(AbstractMavenReport.java:101) > at > org.apache.maven.plugins.site.ReportDocumentRenderer.renderDocument(ReportDocumentRenderer.java:170) > at > org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.renderModule(DefaultSiteRenderer.java:330) > at > org.apache.maven.doxia.siterenderer.DefaultSiteRenderer.render(DefaultSiteRenderer.java:134) > at > org.apache.maven.plugins.site.SiteMojo.renderLocale(SiteMojo.java:159) > at org.apache.maven.plugins.site.SiteMojo.execute(SiteMojo.java:122) > at > org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:107) > ... 20 more -- This message is automatically generated by JIRA. - 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