Hi again,
I updated to Maven 2.0 RC and reran the demo, with the same result (see
below)
What is the problem? Why can't it find my plugin? Why is it throwing an
exception? Please help.
Much appreciated,
Kevin
maven-hello-plugin> m2 install -DupdateReleaseInfo=true
[INFO] Scanning for projects...
[INFO]
----------------------------------------------------------------------------
[INFO] Building Maven Hello World Plugin
[INFO] task-segment: [install]
[INFO]
----------------------------------------------------------------------------
[INFO] [plugin:descriptor]
[INFO] [resources:resources]
[INFO] Using default encoding to copy filtered resources.
[INFO] [compiler:compile]
[INFO] No sources to compile
[INFO] [resources:testResources]
[INFO] Using default encoding to copy filtered resources.
[INFO] [compiler:testCompile]
[INFO] No sources to compile
[INFO] [surefire:test]
[INFO] Setting reports dir:
/home/kevin/m2_test/maven-hello-plugin/target/surefire-reports
-------------------------------------------------------
T E S T S
-------------------------------------------------------
There are no test to run.
Results :
[surefire] Tests run: 0, Failures: 0, Errors: 0
[INFO] [jar:jar]
[INFO] Building jar:
/home/kevin/m2_test/maven-hello-plugin/target/maven-hello-plugin-1.0-SNAPSHO
T.jar
[INFO] [plugin:addPluginArtifactMetadata]
[INFO] [install:install]
[INFO] Installing
/home/kevin/m2_test/maven-hello-plugin/target/maven-hello-plugin-1.0-SNAPSHO
T.jar to /home/kevin/.m2/rep
ository/org/apache/maven/plugins/maven-hello-plugin/1.0-SNAPSHOT/maven-hello
-plugin-1.0-SNAPSHOT.jar
[INFO] [plugin:updateRegistry]
[INFO]
----------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO]
----------------------------------------------------------------------------
[INFO] Total time: 9 seconds
[INFO] Finished at: Mon Oct 17 11:21:47 MEST 2005
[INFO] Final Memory: 3M/8M
[INFO]
----------------------------------------------------------------------------
maven-hello-plugin> m2 hello:hello
[INFO] Scanning for projects...
[INFO] Searching repository for plugin with prefix: 'hello'.
[INFO]
----------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO]
----------------------------------------------------------------------------
[INFO] null
[INFO]
----------------------------------------------------------------------------
[INFO] Trace
java.lang.NullPointerException
at
org.apache.maven.plugin.descriptor.PluginDescriptor.getMojo(PluginDescriptor
.java:261)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.getMojoDescriptor(Defaul
tLifecycleExecutor.java:1363)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.segmentTaskListByAggrega
tionNeeds(DefaultLifecycleExecutor.
java:376)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycle
Executor.java:132)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:316)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:113)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:249)
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:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at
org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
[INFO]
----------------------------------------------------------------------------
[INFO] Total time: 1 second
[INFO] Finished at: Mon Oct 17 11:26:30 MEST 2005
[INFO] Final Memory: 1M/4M
[INFO]
----------------------------------------------------------------------------
-----Original Message-----
From: Kevin McNamee [mailto:[EMAIL PROTECTED]
Sent: 14 October 2005 14:25
To: 'Maven Users List'
Subject: RE: [m2] Can't get hello world plugin to work
Hi Yann,
Ok I ran
Now I get
my:maven-hello-plugin> m2 hello:hello
[INFO] Searching repository for plugin with prefix: 'hello'.
---------------------------------------------------
constituent[0]:
file:/proj/local/maven-2.0-beta-3/lib/maven-core-2.0-beta-3.jar
constituent[1]:
file:/proj/local/maven-2.0-beta-3/lib/maven-artifact-manager-2.0-beta-3.jar
constituent[2]:
file:/proj/local/maven-2.0-beta-3/lib/plexus-input-handler-1.0-alpha-2.jar
constituent[3]:
file:/proj/local/maven-2.0-beta-3/lib/maven-plugin-api-2.0-beta-3.jar
constituent[4]:
file:/proj/local/maven-2.0-beta-3/lib/maven-plugin-descriptor-2.0-beta-3.jar
constituent[5]:
file:/proj/local/maven-2.0-beta-3/lib/maven-artifact-2.0-beta-3.jar
constituent[6]: file:/proj/local/maven-2.0-beta-3/lib/commons-cli-1.0.jar
constituent[7]:
file:/proj/local/maven-2.0-beta-3/lib/maven-model-2.0-beta-3.jar
constituent[8]:
file:/proj/local/maven-2.0-beta-3/lib/maven-settings-2.0-beta-3.jar
constituent[9]:
file:/proj/local/maven-2.0-beta-3/lib/maven-repository-metadata-2.0-beta-3.j
ar
constituent[10]: file:/proj/local/maven-2.0-beta-3/lib/jsch-0.1.21.jar
constituent[11]:
file:/proj/local/maven-2.0-beta-3/lib/wagon-provider-api-1.0-alpha-4.jar
constituent[12]:
file:/proj/local/maven-2.0-beta-3/lib/maven-monitor-2.0-beta-3.jar
constituent[13]:
file:/proj/local/maven-2.0-beta-3/lib/maven-reporting-api-2.0-beta-3.jar
constituent[14]:
file:/proj/local/maven-2.0-beta-3/lib/maven-profile-2.0-beta-3.jar
constituent[15]:
file:/proj/local/maven-2.0-beta-3/lib/wagon-file-1.0-alpha-4.jar
constituent[16]:
file:/proj/local/maven-2.0-beta-3/lib/maven-project-2.0-beta-3.jar
constituent[17]:
file:/proj/local/maven-2.0-beta-3/lib/maven-plugin-registry-2.0-beta-3.jar
constituent[18]: file:/proj/local/maven-2.0-beta-3/lib/jline-0.9.1.jar
constituent[19]:
file:/proj/local/maven-2.0-beta-3/lib/maven-plugin-parameter-documenter-2.0-
beta-3.jar
constituent[20]:
file:/proj/local/maven-2.0-beta-3/lib/doxia-sink-api-1.0-alpha-4.jar
constituent[21]:
file:/proj/local/maven-2.0-beta-3/lib/wagon-ssh-1.0-alpha-4.jar
constituent[22]:
file:/proj/local/maven-2.0-beta-3/lib/wagon-http-lightweight-1.0-alpha-4.jar
---------------------------------------------------
java.lang.NullPointerException
at
org.apache.maven.plugin.descriptor.PluginDescriptor.getMojo(PluginDescriptor
.java:258)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.getMojoDescriptor(Defaul
tLifecycleExecutor.java:1294)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.segmentTaskListByAggrega
tionNeeds(DefaultLifecycleExecutor.java:420)
at
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycle
Executor.java:132)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:217)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:247)
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:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at
org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
/Kevin
-----Original Message-----
From: Yann Le Du [mailto:[EMAIL PROTECTED]
Sent: 14 October 2005 13:53
To: Maven Users List
Subject: RE: [m2] Can't get hello world plugin to work
Hi Kevin,
Try install again the plugin with this extra option :
m2 install -DupdateReleaseInfo=true
Yann
--- Kevin McNamee <[EMAIL PROTECTED]> a écrit :
> Of course I meant after installation when I try to test the plugin.
>
>
>
> Also I am using maven 2.0 Beta 3.
>
>
>
> /Kevin
>
>
>
> _____
>
> From: Kevin McNamee [mailto:[EMAIL PROTECTED]
> Sent: 13 October 2005 16:17
> To: 'Maven Users List'
> Subject: [m2] Can't get hello world plugin to work
>
>
>
> Hi,
>
>
>
> I have been trying to get the Hello World plugin to work following the
> instructions at
>
>
http://maven.apache.org/maven2/developers/developing-plugins-with-marmalade.
> html
>
>
>
> But then when I do the install I get:
>
>
>
> :maven-hello-plugin> m2 hello:hello
>
> [INFO] Searching repository for plugin with prefix: 'hello'.
>
> [WARNING]
>
> ***** Using defaults for missing POM
> org.apache.maven.plugins:maven-hello-plugin:pom:RELEASE *****
>
>
>
> [INFO] Cannot find mojo descriptor for: 'hello:hello' - Treating as
> non-aggregator.
>
> [INFO]
>
----------------------------------------------------------------------------
>
> [INFO] Building Maven Hello World Plugin
>
> [INFO] task-segment: [hello:hello]
>
> [INFO]
>
----------------------------------------------------------------------------
>
> [INFO]
>
----------------------------------------------------------------------------
>
> [ERROR] FATAL ERROR
>
> [INFO]
>
----------------------------------------------------------------------------
>
> [INFO] Diagnosis: Error resolving plugin version
>
> [INFO]
>
----------------------------------------------------------------------------
>
> [INFO]
>
----------------------------------------------------------------------------
>
> [ERROR] FATAL ERROR
>
> [INFO]
>
----------------------------------------------------------------------------
>
> FATAL ERROR: Error executing Maven for a project
>
> For more information, run with the -e flag
>
>
>
> Any ideas?
>
>
>
> Much appreciated,
>
> Kevin
>
>
>
>
> ________________________________________________________
>
>
>
>
>
>
>
> <http://www.symsoft.se>
>
> Kevin McNamee
> Design Engineer
> Symsoft AB Kista Science Tower
>
> TEL
> FAX
> GSM
>
> +46 8 503 86 637
> +46 8 566 166 01
> +46 702 49 12 92
>
>
>
>
> Färögatan 33, Box 1219
> SE-164 28 Kista, Sweden
>
> <mailto:[EMAIL PROTECTED]> [EMAIL PROTECTED]
> <http://www.symsoft.se> www.symsoft.se
>
>
>
>
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