Code:

import java.sql.*;

public class Baza {

    Connection connection;
    Statement statement;
    ResultSet result;
    
    public static void main(String[] args){

        Baza bp = new Baza();
        bp.povezi();
    }

    void povezi(){
        try {
            Class.forName("org.hsqldb.jdbcDriver");
            connection = DriverManager.getConnection("jdbc:hsqldb:baza","sa","");
            statement = connection.createStatement();
//            result = statement.executeQuery("SELECT * FROM tab");
            System.out.println("uradjeno");
        } catch (SQLException e) {
            e.printStackTrace();
            return;
        } catch(Exception e){

        }
    }
}

Code:

run:
java.sql.SQLException: Table not found in statement [SELECT * FROM tab]
        at org.hsqldb.jdbc.Util.sqlException(Unknown Source)
        at org.hsqldb.jdbc.jdbcStatement.fetchResult(Unknown Source)
        at org.hsqldb.jdbc.jdbcStatement.executeQuery(Unknown Source)
        at Baza.povezi(Baza.java:25)
        at Baza.main(Baza.java:17)