Metadata repoMetadata, List<String> availableVersions) {
        Collection<String> versions = new LinkedHashSet<>();

        if ((repoMetadata != null) && (repoMetadata.getVersioning() != null)) {
            versions.addAll(repoMetadata.getVersioning().getVersions());
        }

        versions.addAll(availableVersions);

        List<ArtifactVersion> artifactVersions = new ArrayList<>(versions.size());

                        try (InputStream in = Files.newInputStream(metadata.getPath())) {
                            versioning = new Versioning(
                                    new MetadataStaxReader().read(in, false).getVersioning());
                        }
                    }
                }
            }
        } catch (Exception e) {
            invalidMetadata(session, trace, metadata, repository, e);

            listener.metadataInvalid(event.build());
        }
    }

    private void mergeMetadata(Versions versions, Metadata source, ArtifactRepository repository) {
        Versioning versioning = source.getVersioning();
        if (versioning != null) {
            String timestamp = versioning.getLastUpdated() == null
                    ? ""
                    : versioning.getLastUpdated().trim();

                        try (InputStream in = Files.newInputStream(metadata.getPath())) {
                            versioning = new Versioning(
                                    new MetadataStaxReader().read(in, false).getVersioning());

                            /*
                            NOTE: Users occasionally misuse the id "local" for remote repos which screws up the metadata

        Metadata metadata = new Metadata();
        metadata.setGroupId(artifact.getGroupId());
        metadata.setArtifactId(artifact.getArtifactId());
        metadata.setVersion(artifact.getVersion());
        metadata.setVersioning(versioning);
        return metadata;
    }

    protected static Versioning createVersioning(Snapshot snapshot) {
        Versioning versioning = new Versioning();
        versioning.setSnapshot(snapshot);