Maven Plugin Issue

[Jagannadh <ja...@igindex.co.uk>]

Hi,

We are trying to extend maven-version-plugin as a standalone java
application to get latest available versions. If we run the plugin from
command-line, it works fine but our custom application fails. The following
is what we are trying to do:

class OurMojo() extends DisplayDependencyUpdatesMojo {
  OurMojo(String module) {
    super();
    Model model = new Model();
    model.addModule(module);
    MavenProject project = new MavenProject(model);
    super.setProject(project);
  }
  ...
  // set groupId, artifactId, version, type, classifier, scope
  ...
  public void execute() throws ... {
      VersionRange versionRange = VersionRange.createFromVersionSpec(
version );

      super.artifactFactory = new DefaultArtifactFactory();
      Artifact artifact = artifactFactory.createDependencyArtifact( groupId,
artifactId, versionRange, type, classifier, scope );
      
      ArtifactVersion artifactVersion = findLatestVersion( artifact,
versionRange, null, false );
      System.out.println(artifactVersion);
   }
}

The above code fails at artifactFactory.createDependencyArtifact() with a
NullPointerException. On debug, we reach the following line in
DefaultArtifactFactory:
  ArtifactHandler handler = artifactHandlerManager.getArtifactHandler( type
);
However, artifactHandlerManager is never set (or injected) in
DefaultArtifactFactory. 

Any ideas how to get it working?  

We are running the following configuration:
Maven 2.1.0
maven-version-plugin 1.0-alpha-3
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Re: Maven Plugin Issue

[Stephen Connolly <st...@gmail.com>]

You cannot extend Mojos.

Also that Mojo has been replaced towards 1.0-beta-1 as it made invalid
assumptions about version numbering

There are now much nicer reports...

see:

dependency-updates-report
plugin-updates-report

and (the one I am currently writing)

property-updates-report

Are you sure you need to write your own?

1.0-beta-1 should be being voted on for released in the next 5-10 days...
and my plan is assuming a successfuly soak at beta for about 1 month, to
release 1.0 in early september... at which point it's ramp up to doxia 1.1,
jre 1.5 and maven 2.2.x

-Stephen

2009/7/28 Jagannadh <ja...@igindex.co.uk>

>
> Hi,
>
> We are trying to extend maven-version-plugin as a standalone java
> application to get latest available versions. If we run the plugin from
> command-line, it works fine but our custom application fails. The following
> is what we are trying to do:
>
> class OurMojo() extends DisplayDependencyUpdatesMojo {
>  OurMojo(String module) {
>    super();
>    Model model = new Model();
>    model.addModule(module);
>    MavenProject project = new MavenProject(model);
>    super.setProject(project);
>  }
>  ...
>  // set groupId, artifactId, version, type, classifier, scope
>  ...
>  public void execute() throws ... {
>      VersionRange versionRange = VersionRange.createFromVersionSpec(
> version );
>
>      super.artifactFactory = new DefaultArtifactFactory();
>      Artifact artifact = artifactFactory.createDependencyArtifact( groupId,
> artifactId, versionRange, type, classifier, scope );
>
>      ArtifactVersion artifactVersion = findLatestVersion( artifact,
> versionRange, null, false );
>      System.out.println(artifactVersion);
>   }
> }
>
> The above code fails at artifactFactory.createDependencyArtifact() with a
> NullPointerException. On debug, we reach the following line in
> DefaultArtifactFactory:
>  ArtifactHandler handler = artifactHandlerManager.getArtifactHandler( type
> );
> However, artifactHandlerManager is never set (or injected) in
> DefaultArtifactFactory.
>
> Any ideas how to get it working?
>
> We are running the following configuration:
> Maven 2.1.0
> maven-version-plugin 1.0-alpha-3
> --
> View this message in context:
> http://www.nabble.com/Maven-Plugin-Issue-tp24698071p24698071.html
> Sent from the Maven - Users mailing list archive at Nabble.com.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@maven.apache.org
> For additional commands, e-mail: users-help@maven.apache.org
>
>