private void addForeignKey(ResultSet rs, Map tables, DatabaseMetaData meta) throws SQLException {
private void addForeignKey(ResultSet rs, Map tables) throws SQLException {
    private void addForeignKey(ResultSet rs, Map tables, DatabaseMetaData meta) throws SQLException {        String name = rs.getString("FK_NAME");        if (name == null)            return;        ForeignKeyConstraint foreignKey = getForeignKey(name);        if (foreignKey == null) {            foreignKey = new ForeignKeyConstraint(this, rs);            foreignKeys.put(foreignKey.getName().toUpperCase(), foreignKey);        }        TableColumn childColumn = getColumn(rs.getString("FKCOLUMN_NAME"));        foreignKey.addChildColumn(childColumn);        Table parentTable = (Table)tables.get(rs.getString("PKTABLE_NAME").toUpperCase());        if (parentTable != null) {            TableColumn parentColumn = parentTable.getColumn(rs.getString("PKCOLUMN_NAME"));            if (parentColumn != null) {                foreignKey.addParentColumn(parentColumn);                childColumn.addParent(parentColumn, foreignKey);                parentColumn.addChild(childColumn, foreignKey);            } else {                System.err.println("Couldn't add FK - Unknown Parent Column '" + rs.getString("PKCOLUMN_NAME") + "'");            }        } else {            System.err.println("Couldn't add FK - Unknown Parent Table '" + rs.getString("PKTABLE_NAME") + "'");        }    }