Hi,
I haven been using Maven 1.0.x for some time now and have just started
looking into Maven 2.
Unfortunately, the Hello World example seems to fail with the following
error when running the command 'm2 install'.
java.lang.NullPointerException
at
org.codehaus.marmalade.metamodel.AbstractMarmaladeTagLibrary.createTag(AbstractMarmaladeTagLibrary.java:59)
at
org.codehaus.marmalade.metamodel.MarmaladeTagBuilder.build(MarmaladeTagBuilder.java:67)
at
org.codehaus.marmalade.metamodel.MarmaladeTagBuilder.build(MarmaladeTagBuilder.java:83)
at
org.codehaus.marmalade.metamodel.MarmaladeTagBuilder.build(MarmaladeTagBuilder.java:83)
at
org.codehaus.marmalade.metamodel.ScriptBuilder.build(ScriptBuilder.java:51)
at
org.codehaus.marmalade.launch.MarmaladeLauncher.buildScript(MarmaladeLauncher.java:264)
at
org.codehaus.marmalade.launch.MarmaladeLauncher.getMarmaladeScript(MarmaladeLauncher.java:313)
at
org.apache.maven.tools.plugin.extractor.marmalade.MarmaladeMojoDescriptorExtractor.extractMojoDescriptors(Mar
maladeMojoDescriptorExtractor.java:89)
at
org.apache.maven.tools.plugin.extractor.AbstractScriptedMojoDescriptorExtractor.execute(AbstractScriptedMojoD
escriptorExtractor.java:30)
at
org.apache.maven.tools.plugin.scanner.DefaultMojoScanner.populatePluginDescriptor(DefaultMojoScanner.java:69)
at
org.apache.maven.plugin.plugin.AbstractGeneratorMojo.execute(AbstractGeneratorMojo.java:93)
at
org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:415)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.processGoals(DefaultLifecycleExecutor.java:169)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:90)
at
org.apache.maven.DefaultMaven.processProject(DefaultMaven.java:253)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:167)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:246)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:303)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:243)
at
org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:416)
at org.codehaus.classworlds.Launcher.main(Launcher.java:363)
Any ideas?
Allen.
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