public static Connection getConnection(){
    Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
    String url = "jdbc:derby:<slave db location>;startSlave=true";
    System.out.println("about to fetch connection");
    Connection con= null;
    try{
        con=DriverManager.getConnection(url, "root", "root");
    }catch(Exception e){
        e.printStackTrace();
    }
    System.out.println("return con -"+con);
    return con;
}

public static Connection getConnection(){
    Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
    String url = "jdbc:derby:<slave db location>;";
    System.out.println("about to fetch connection");
    Connection con= null;
    try{
        con=DriverManager.getConnection(url, "root", "root");
    }catch(Exception e){
        e.printStackTrace();
    }
    System.out.println("return con -"+con);
    return con;
}