ArtifactRepository lr1 = new DelegatingLocalArtifactRepository(repositorySystem.createDefaultLocalRepository());
        ArtifactRepository rr1 = repositorySystem.createDefaultRemoteRepository();
        a1.setDependencyFilter(new ExcludesArtifactFilter(Arrays.asList("foo")));

        Artifact a2 = repositorySystem.createArtifact("testGroup", "testArtifact", "1.2.3", "jar");
        @SuppressWarnings("deprecation")

    String getDownloadUrl();

    void setDownloadUrl(String downloadUrl);

    ArtifactFilter getDependencyFilter();

    void setDependencyFilter(ArtifactFilter artifactFilter);

    ArtifactHandler getArtifactHandler();

    List<String> getDependencyTrail();

    void setDependencyTrail(List<String> dependencyTrail);

        clone.setAvailableVersions(copyList(artifact.getAvailableVersions()));
        if (artifact.getVersion() != null) {
            clone.setBaseVersion(artifact.getBaseVersion());
        }
        clone.setDependencyFilter(artifact.getDependencyFilter());
        clone.setDependencyTrail(copyList(artifact.getDependencyTrail()));
        clone.setDownloadUrl(artifact.getDownloadUrl());
        clone.setRepository(artifact.getRepository());