Hi I'm getting the following error while executing maven 3.0.3 on Windows and Linux. The maven command was mvn clean install. I guess it is not a bug, because it worked until Yesterday. It also works sometimes, when I delete the whole local repository beforehand. But with a non-empty local repository the error appears all the time.
Thanks for your help, Martin [ERROR] Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:2.2.2:single (make-assembly) on project release: Execution make-assembly of goal org.apache.maven.plugins:maven-assembly-plugin:2.2.2:single failed. NullPointerException -> [Help 1] org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:2.2.2:single (make-assembly) on project release: Execution make-assembly of goal org.apache.maven.plugins:maven-assembly-plugin:2.2.2:single failed. at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:225) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) 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:319) 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: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 make-assembly of goal org.apache.maven.plugins:maven-assembly-plugin:2.2.2:single failed. at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:110) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209) ... 19 more Caused by: java.lang.NullPointerException at org.apache.maven.plugin.assembly.archive.archiver.AssemblyProxyArchiver$DefaultFileInfo.isFile(AssemblyProxyArchiver.java:871) at org.apache.maven.plugin.assembly.filter.ComponentsXmlArchiverFileFilter.isSelected(ComponentsXmlArchiverFileFilter.java:193) at org.apache.maven.plugin.assembly.archive.archiver.AssemblyProxyArchiver.acceptFile(AssemblyProxyArchiver.java:825) at org.apache.maven.plugin.assembly.archive.archiver.AssemblyProxyArchiver.addFile(AssemblyProxyArchiver.java:476) at org.apache.maven.plugin.assembly.archive.task.AddArtifactTask.execute(AddArtifactTask.java:212) at org.apache.maven.plugin.assembly.archive.task.AddDependencySetsTask.addNormalArtifact(AddDependencySetsTask.java:351) at org.apache.maven.plugin.assembly.archive.task.AddDependencySetsTask.addDependencySet(AddDependencySetsTask.java:186) at org.apache.maven.plugin.assembly.archive.task.AddDependencySetsTask.execute(AddDependencySetsTask.java:124) at org.apache.maven.plugin.assembly.archive.phase.DependencySetAssemblyPhase.execute(DependencySetAssemblyPhase.java:76) at org.apache.maven.plugin.assembly.archive.DefaultAssemblyArchiver.createArchive(DefaultAssemblyArchiver.java:182) at org.apache.maven.plugin.assembly.mojos.AbstractAssemblyMojo.execute(AbstractAssemblyMojo.java:445) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101) ... 20 more [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/PluginExecutionException