DefaultMavenProjectBuilder throws NPE

[Amarnath Palavalli]

Hello,

I am using the Maven Project jar 2.1.0.
I get the following exception when I use it:

Exception in thread "main" java.lang.NullPointerException
	at  
org 
.apache 
.maven.project.ProjectUtils.buildArtifactRepository(ProjectUtils.java: 
115)
	at  
org 
.apache 
.maven 
.project.ProjectUtils.buildArtifactRepositories(ProjectUtils.java:56)
	at  
org 
.apache 
.maven 
.project 
.DefaultMavenProjectBuilder 
.buildArtifactRepositories(DefaultMavenProjectBuilder.java:951)
	at  
org 
.apache 
.maven 
.project 
.DefaultMavenProjectBuilder 
.buildFromSourceFileInternal(DefaultMavenProjectBuilder.java:508)
	at  
org 
.apache 
.maven 
.project 
.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:227)
	at  
org 
.apache 
.maven 
.project 
.DefaultMavenProjectBuilder 
.buildWithDependencies(DefaultMavenProjectBuilder.java:357)
	at  
org 
.apache 
.maven 
.project 
.DefaultMavenProjectBuilder 
.buildWithDependencies(DefaultMavenProjectBuilder.java:345)
	at  
torque 
.tasks 
.TestJDBCtoXMLTransformationTask 
.test(TestJDBCtoXMLTransformationTask.java:47)
	at  
torque 
.tasks 
.TestJDBCtoXMLTransformationTask 
.main(TestJDBCtoXMLTransformationTask.java:80)

I see in the source code of DefaultMavenProjectBuilder.java, the  
private member
private ArtifactRepositoryFactory artifactRepositoryFactory;

is never initialized. Hence resulting in the above mentioned NPE.

Can anyone point me how to resolve this issue?

I am using the Maven2 plugin of Torque project from Apache DB project  
in my application as given below:

        MavenProjectBuilder builder = (MavenProjectBuilder)  
lookup(MavenProjectBuilder.ROLE);

        ArtifactRepositoryLayout localRepositoryLayout
        = (ArtifactRepositoryLayout) lookup(
                ArtifactRepositoryLayout.ROLE,
                "default");

                ArtifactRepository localRepository
                        = new DefaultArtifactRepository(
                                "local",
                                "file://" + getBasedir() + File.separator
                                    + "target/test-classes/repository",
                                localRepositoryLayout);
                
        MavenProject mavenProject = builder.buildWithDependencies(
                new File(
                    getBasedir(),
                    "target/test-classes/projects/ 
TestJDBCtoXMLTransformationTask/pom.xml"),
                localRepository,
                null);


Thank you in advance,

Regards,
Amar