[m2e-wtp-dev] Error while performing Maven > Update Project

[Jeffrey E Care]

Eclipse 4.3.1
m2e 1.4.0
m2e-wtp 1.0.1

I'm getting a NPE in the Eclipse error log when running Update Project on
certain projects:

java.lang.NullPointerException
at
org.eclipse.wst.common.componentcore.internal.resources.VirtualResource.getProjectRelativePaths(VirtualResource.java:119)

at
org.eclipse.wst.common.componentcore.internal.resources.VirtualResource.getProjectRelativePath(VirtualResource.java:154)

at
org.eclipse.wst.common.componentcore.internal.resources.VirtualResource.getWorkspaceRelativePath(VirtualResource.java:109)

at
org.eclipse.jpt.common.core.internal.resource.ModuleResourceLocator.getWorkspacePath(ModuleResourceLocator.java:37)

at
org.eclipse.m2e.wtp.jpa.internal.configurators.MavenResourceLocator.getWorkspacePath(MavenResourceLocator.java:137)

at
org.eclipse.m2e.wtp.jpa.internal.configurators.JpaProjectConfigurator.getPersistenceXml(JpaProjectConfigurator.java:117)

at
org.eclipse.m2e.wtp.jpa.internal.configurators.JpaProjectConfigurator.configure(JpaProjectConfigurator.java:90)

at
org.eclipse.m2e.core.project.configurator.AbstractLifecycleMapping.configure(AbstractLifecycleMapping.java:109)

at
org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$3.call(ProjectConfigurationManager.java:472)

at
org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$3.call(ProjectConfigurationManager.java:1)

at
org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:161)

at
org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:137)

at
org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration(ProjectConfigurationManager.java:465)

at
org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration0(ProjectConfigurationManager.java:403)

at
org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$2.call(ProjectConfigurationManager.java:316)

at
org.eclipse.m2e.core.internal.project.ProjectConfigurationManager$2.call(ProjectConfigurationManager.java:1)

at
org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.executeBare(MavenExecutionContext.java:161)

at
org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:137)

at
org.eclipse.m2e.core.internal.embedder.MavenExecutionContext.execute(MavenExecutionContext.java:89)

at
org.eclipse.m2e.core.internal.embedder.MavenImpl.execute(MavenImpl.java:1301)

at
org.eclipse.m2e.core.internal.project.ProjectConfigurationManager.updateProjectConfiguration(ProjectConfigurationManager.java:313)

at
org.eclipse.m2e.core.ui.internal.UpdateMavenProjectJob.runInWorkspace(UpdateMavenProjectJob.java:77)

at
org.eclipse.core.internal.resources.InternalWorkspaceJob.run(InternalWorkspaceJob.java:38)

at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)

I also found an entry on stack overflow (
http://stackoverflow.com/questions/19779141/eclipse-throws-nullpointerexception-during-maven-update
) that seems somewhat related (at least the top of the stack is the same).



Jeffrey E. (Jeff) Care
Advisory Software Engineer | IBM Watson Solutions Release Engineering
***@us.ibm.com | External: 919-543-4907 | Tie line: 441-4907