[m2e-users] Null pointer when importing a maven project

[Xavi Beumala <xbeumala@xxxxxxxxx>]

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)