presto-iceberg/src/main/java/io/prestosql/plugin/iceberg/IcebergMetadata.java/IcebergMetadata/getSystemTable
class IcebergMetadata:    @Override
    public Optional<SystemTable> getSystemTable(ConnectorSession session, SchemaTableName tableName)
    {
        IcebergTableHandle table = IcebergTableHandle.from(tableName);
        return getRawSystemTable(session, table)
                .map(systemTable -> new ClassLoaderSafeSystemTable(systemTable, getClass().getClassLoader()));
    }