Model pom = builder.read( fmParentPom, null );
Dependency cobertura = new Dependency();
cobertura.setGroupId( "net.sourceforge.cobertura" );
cobertura.setArtifactId( "cobertura" );
cobertura.setVersion( "1.9.4.1" );
pom.addDependency( cobertura );
ModelWriter writer = container.lookup( ModelWriter.class );
writer.write( fmParentPom, null, pom );
}