if (metadata.isRelocated()) {
            // relocated packages have no artifacts
            return ImmutableList.of();
        } else if (metadata.isPomPackaging()) {
            // Modules with POM packaging _may_ have a jar
            return ImmutableList.of(metadata.optionalArtifact("jar", "jar", null));
        } else if (metadata.isKnownJarPackaging()) {

    public @Nonnull String getPackaging() {
        return packaging;
    }

    @Override
    public boolean isRelocated() {
        return relocated;
    }

    @Override
    public boolean isPomPackaging() {
        return POM_PACKAGING.equals(packaging);
    }

    @Override
    public boolean isKnownJarPackaging() {
        return JAR_PACKAGINGS.contains(packaging);
    }