ConnectionManager cm = ConnectionManager.getInstance(); if (cm != null) { cm.disconnect(); }
ConnectionManager.dbDown();
    public static void throwSQLException(SQLException e) throws SQLException {        Assert.assertNotNull(s_handler, "DB Specific Exception Handler Class");        try {            s_handler.throwSQLException(e);        } catch (DbNotAvailableException dbe) {            ConnectionManager cm = ConnectionManager.getInstance();            if (cm != null) {                cm.disconnect();            }            throw dbe;        }    }