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[tycho-user] NPE on mvn release:perform
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I understand mvn release is not supported by tycho but a NullPointerException is very unhelpful. Can this be fixed or at least explained please?
[INFO] [ERROR] Internal error: java.lang.NullPointerException -> [Help 1]
[INFO] org.apache.maven.InternalErrorException: Internal error: java.lang.NullPointerException[INFO] at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:168)
[INFO] at org.apache.maven.cli.MavenCli.execute(MavenCli.java:534)[INFO] at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
[INFO] at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)[INFO] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
[INFO] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)[INFO] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
[INFO] at java.lang.reflect.Method.invoke(Method.java:597)[INFO] at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
[INFO] at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)[INFO] at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
[INFO] at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)[INFO] Caused by: java.lang.NullPointerException
[INFO] at org.apache.maven.plugin.DefaultPluginDescriptorCache$CacheKey.<init>(DefaultPluginDescriptorCache.java:165)
[INFO] at org.apache.maven.plugin.DefaultPluginDescriptorCache.createKey(DefaultPluginDescriptorCache.java:62)[INFO] at org.apache.maven.plugin.internal.DefaultMavenPluginManager.getPluginDescriptor(DefaultMavenPluginManager.java:136)
[INFO] at org.eclipse.tycho.core.maven.utils.PluginRealmHelper.execute(PluginRealmHelper.java:86)[INFO] at org.eclipse.tycho.p2.resolver.P2TargetPlatformResolver.getDependencyMetadata(P2TargetPlatformResolver.java:158)
[INFO] at org.eclipse.tycho.p2.resolver.P2TargetPlatformResolver.setupProjects(P2TargetPlatformResolver.java:140)[INFO] at org.eclipse.tycho.core.resolver.DefaultTychoDependencyResolver.setupProject(DefaultTychoDependencyResolver.java:76)
[INFO] at org.eclipse.tycho.core.maven.TychoMavenLifecycleParticipant.afterProjectsRead(TychoMavenLifecycleParticipant.java:56)
[INFO] at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:273)[INFO] at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
[INFO] ... 11 more[INFO] [ERROR]
[INFO] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.[INFO] [ERROR] Re-run Maven using the -X switch to enable full debug logging.
[INFO] [ERROR] [INFO] [ERROR] For more information about the errors and possible solutions, please read the following articles:
[INFO] [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/InternalErrorException
Craig Foote