presto-hive/src/main/java/io/prestosql/plugin/hive/HiveAnalyzeProperties.java/HiveAnalyzeProperties/decodeColumnNames
class HiveAnalyzeProperties:    private static Set<String> decodeColumnNames(Object object)
    {
        if (object == null) {
            return null;
        }

        Collection<?> columns = ((Collection<?>) object);
        return columns.stream()
                .peek(property -> throwIfNull(property, "columns"))
                .map(String.class::cast)
                .collect(toImmutableSet());
    }