code: protected ProxyArtifactStore createProxyArtifactStore()
      {
          return new ProxyArtifactStore( repositoryMetadataManager, remoteArtifactRepositories, remotePluginRepositories,
                                         localRepository, artifactFactory, artifactResolver, archetypeManager, getLog() );
      }
docs: Creates an {@link org.codehaus.mojo.mrm.api.maven.ArtifactStore} that fetches from the repositories available to
  Maven itself.
  
  @return an {@link org.codehaus.mojo.mrm.api.maven.ArtifactStore} that fetches from the repositories available to
  Maven itself.