> What error do you get? Which version of Jaybird do you use?
>

Thread-0 - org.firebirdsql.jdbc.FBSQLException: The result set is closed
Thread-1 - null

My test consist of two very simple java files.

This is the main one:

import java.sql.*;

public class Teste {

public static void main(String[] args) {
try {
Class.forName("org.firebirdsql.jdbc.FBDriver");
Connection conn = DriverManager.getConnection(
"jdbc:firebirdsql:127.0.0.1/3050:employee",
"sysdba", "masterkey");

System.out.println(new Time(System.currentTimeMillis()));

new ThreadResultSet(conn, "select * from rdb$database");
new ThreadResultSet(conn, "select * from rdb$database");

System.out.println(new Time(System.currentTimeMillis()));
} catch (Exception E) {
System.out.println(E);
}

}

}

And this is the other one:

package jdbc;

import java.sql.*;

public class ThreadResultSet implements Runnable {

private Statement stmt;
private ResultSet rs;
private String sql;
private Thread thr;

public ThreadResultSet(Connection conn, String sql) throws Exception {
stmt = conn.createStatement();
this.sql = sql;
thr = new Thread(this);
thr.start();
}

public void run() {
try {
rs = stmt.executeQuery(sql);
rs.next();
System.out.println(thr.getName() + " - " + rs.getString(1));
stmt.close();
} catch (SQLException E) {
System.out.println(thr.getName() + " - " + E.toString());
}
}

}

Regards,

Fabiano.