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http://jira.codehaus.org/browse/MSHARED-80?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=153181#action_153181
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MTStorm commented on MSHARED-80:
--------------------------------
Thanks, but the problem remains. Even when I copy the entire TreeMojo and
deploy it in an other groupId, the nullpointer remains... Here is how the
TreeMojo does it.
/**
* The dependency tree builder to use.
*
* @component
* @required
* @readonly
*/
private DependencyTreeBuilder dependencyTreeBuilder;
> NullPointer in DefaultDependencyTreeBuilder.java:93, no logger
> ---------------------------------------------------------------
>
> Key: MSHARED-80
> URL: http://jira.codehaus.org/browse/MSHARED-80
> Project: Maven Shared Components
> Issue Type: Bug
> Components: maven-dependency-tree
> Affects Versions: maven-dependency-tree 1.2
> Environment: Windows XP 64 JDK 1.6
> Reporter: MTStorm
> Assignee: Mark Hobson
> Priority: Critical
>
> I have a report and a mojo that seeks transversal dependencies. It shows a
> nullpointer in the DefaultDependencyTreeBuilder.
> I can not figure it out what is wrong sice the implementation off
> DependencyTreeBuilder is assigned by Maven and I have no controll on the
> logger.
> Here is the code snippet
> //members
> /**
> * Used to look up Artifacts in the remote repository.
> *
> * @parameter expression=
> *
> "${component.org.apache.maven.artifact.factory.ArtifactFactory}"
> * @required
> * @readonly
> */
> protected org.apache.maven.artifact.factory.ArtifactFactory
> artifactFactory;
> /**
> * Used to look up Artifacts in the remote repository.
> *
> * @parameter expression=
> *
> "${component.org.apache.maven.artifact.resolver.ArtifactResolver}"
> * @required
> * @readonly
> */
> protected org.apache.maven.artifact.resolver.ArtifactResolver resolver;
> /**
> * Artifact collector, needed to resolve dependencies.
> *
> * @component
> role="org.apache.maven.artifact.resolver.ArtifactCollector"
> * @required
> * @readonly
> */
> protected ArtifactCollector artifactCollector;
> /**
> * @component
> *
> role="org.apache.maven.artifact.metadata.ArtifactMetadataSource"
> * hint="maven"
> * @required
> * @readonly
> */
> protected ArtifactMetadataSource artifactMetadataSource;
> /**
> * Dependency tree builder component.
> *
> * @component expression=
> *
> "org.apache.maven.shared.dependency.tree.DependencyTreeBuilder"
> * @required
> * @readonly
> */
> private DependencyTreeBuilder dependencyTreeBuilder;
> //sample snippet to use in report and mojo
> ArtifactFilter artifactFilter = new ScopeArtifactFilter(
> Artifact.SCOPE_COMPILE);
> DependencyNode dn;
> getLog().info("Start");
> try {
> dn = dependencyTreeBuilder.buildDependencyTree(
> project, localRepository,
> artifactFactory, artifactMetadataSource,
> artifactFilter, artifactCollector);
>
> } catch (DependencyTreeBuilderException e) {
> e.printStackTrace();
> getLog().error("oeps",e);
> }
> getLog().info("Done");
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