}

            if (packageDetector.hasPackageStatement) {
                throw new UnsupportedOperationException(String.format("%s should not contain a package statement.", source.getLongDisplayName().getCapitalizedDisplayName()));
            }
            serializeMetadata(source, extractingTransformer, metadataDir, emptyScriptDetector.isEmptyScript(), emptyScriptDetector.getHasMethods());
        } finally {