java.lang.NullPointerException
	at com.google.gdt.eclipse.suite.launch.processors.LaunchConfigAffectingChangesListener.updateLaunchConfigs(LaunchConfigAffectingChangesListener.java:247)
	at com.google.gdt.eclipse.suite.launch.processors.LaunchConfigAffectingChangesListener.preferenceChange(LaunchConfigAffectingChangesListener.java:166)
	at org.eclipse.core.internal.preferences.EclipsePreferences$3.run(EclipsePreferences.java:841)
	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
	at org.eclipse.core.internal.preferences.EclipsePreferences.firePreferenceEvent(EclipsePreferences.java:844)
	at org.eclipse.core.internal.preferences.EclipsePreferences.put(EclipsePreferences.java:857)
	at org.eclipse.m2e.core.internal.project.ResolverConfigurationIO.saveResolverConfiguration(ResolverConfigurationIO.java:56)
	at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.enableBasicMavenNature(ProjectConfigurationManager.java:325)
	at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.create(ProjectConfigurationManager.java:723)
	at org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.importProjects(ProjectConfigurationManager.java:139)
	at org.jboss.tools.maven.project.examples.ImportMavenProjectExampleDelegate.importMavenProjects(ImportMavenProjectExampleDelegate.java:243)
	at org.jboss.tools.maven.project.examples.ImportMavenProjectExampleDelegate.importProject(ImportMavenProjectExampleDelegate.java:157)
	at org.jboss.tools.maven.project.examples.AbstractImportMavenExample.importProject(AbstractImportMavenExample.java:36)
	at org.jboss.tools.project.examples.wizard.NewProjectExamplesJob.runInWorkspace(NewProjectExamplesJob.java:68)
	at org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)