Hi Fred for such a quick response. I have just come up with the same solution after debugging what was going on. the version fro maven-compiler-plugin is missing.
many again! Xavi From: [email protected] [mailto:[email protected]] On Behalf Of Fred Bricon Sent: lunes, 30 de mayo de 2011 12:19 To: Maven Integration for Eclipse users mailing list Subject: Re: [m2e-users] Null pointer when importing a maven project Looks like, since this is an unconventional package, the maven-compiler-plugin is not bound to the maven lifecycle. The java configurator is trying to infer the java version from the maven-compiler-plugin configuration, but fails. You can try adding <plugin> <artifactId>maven-compiler-plugin</artifactId> <version>2.3.2</version> </plugin> in your <plugins> node. I'm not sure it'll work. In any case, you should open an issue at https://bugs.eclipse.org/bugs/enter_bug.cgi?product=m2e Regards, Fred Bricon 2011/5/30 Xavi Beumala <[email protected]<mailto:[email protected]>> Hi all, I have a very simple project (basically it's a folder with the pom.xml and a src/main/resources empty folder), see pom file below. When importing it In Eclipse as an existing maven project I get an exception (copied below). The problem is that after the exception the project is imported but it's only half configured (i.e. the classpath is wrong). Any hint on what might be going on? Many thanks Xavi //------------- // pom.xml //------------- <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/xsd/maven-4.0.0.xsd";> <modelVersion>4.0.0</modelVersion> <groupId>test</groupId> <artifactId>TestProject</artifactId> <version>0.0.1-SNAPSHOT</version> <name>New Test Project</name> <packaging>content-package</packaging> <build> <plugins> <plugin> <groupId>com.day.jcr.vault</groupId> <artifactId>maven-vault-plugin</artifactId> <version>0.0.7</version> <extensions>true</extensions> </plugin> </plugins> </build> </project> //------------------------- // RTE //------------------------- An internal error occurred during: "Importing Maven projects". java.lang.NullPointerException at org.apache.maven.plugin.DefaultPluginDescriptorCache$CacheKey.<init>(DefaultPluginDescriptorCache.java:164) at org.apache.maven.plugin.DefaultPluginDescriptorCache.createKey(DefaultPluginDescriptorCache.java:62) at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getPluginDescriptor(DefaultMavenPluginManager.java:130) at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getMojoDescriptor(DefaultMavenPluginManager.java:251) at org.apache.maven.plugin.DefaultBuildPluginManager.getMojoDescriptor(DefaultBuildPluginManager.java:197) at org.maven.ide.eclipse.internal.embedder.MavenImpl.getMojoParameterValue(MavenImpl.java:765) at org.maven.ide.eclipse.jdt.internal.AbstractJavaProjectConfigurator.getCompilerLevel(AbstractJavaProjectConfigurator.java:399) at org.maven.ide.eclipse.jdt.internal.AbstractJavaProjectConfigurator.addJavaProjectOptions(AbstractJavaProjectConfigurator.java:370) at org.maven.ide.eclipse.jdt.internal.AbstractJavaProjectConfigurator.configure(AbstractJavaProjectConfigurator.java:95) at org.maven.ide.eclipse.project.configurator.AbstractLifecycleMapping.configure(AbstractLifecycleMapping.java:57) at org.maven.ide.eclipse.internal.project.GenericLifecycleMapping.configure(GenericLifecycleMapping.java:48) at org.maven.ide.eclipse.internal.project.ProjectConfigurationManager.updateProjectConfiguration(ProjectConfigurationManager.java:306) at org.maven.ide.eclipse.internal.project.ProjectConfigurationManager.configureNewMavenProject(ProjectConfigurationManager.java:240) at org.maven.ide.eclipse.internal.project.ProjectConfigurationManager.importProjects(ProjectConfigurationManager.java:146) at org.maven.ide.eclipse.wizards.MavenImportWizard$1.runInWorkspace(MavenImportWizard.java:94) at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54) _______________________________________________ m2e-users mailing list [email protected]<mailto:[email protected]> https://dev.eclipse.org/mailman/listinfo/m2e-users -- "Have you tried turning it off and on again" - The IT Crowd
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