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Posted to users@maven.apache.org by fenallen <fe...@gmx.net> on 2005/05/31 12:22:26 UTC
Maven 2 Hello World Failure
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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Re: Maven 2 Hello World Failure
Posted by Brett Porter <br...@gmail.com>.
It seems that it is out of date. We will look at correcting it.
A better introduction can be found here:
http://maven.apache.org/maven2/getting-started.html
Cheers,
Brett
On 5/31/05, fenallen <fe...@gmx.net> wrote:
> 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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