log.debug("stopping " + hsqldbServer);
   private void stopInVMDatabase() throws Exception   {      Class.forName("org.hsqldb.jdbcDriver" );      Connection conn = DriverManager.getConnection("jdbc:hsqldb:mem:test", "sa", "");      Statement stat = conn.createStatement();      stat.executeUpdate("SHUTDOWN");      conn.close();      // faster stop//      hsqldbServer.stop();   }