import java.sql.*;

public class OpenConn {

	public static void main(String args[]) throws Exception {
		Class.forName("org.postgresql.Driver");
		leakConnection();
		System.gc();
	}

	private static void leakConnection() throws Exception {
		Connection conn = DriverManager.getConnection("jdbc:postgresql://localhost:5810/jurka?logUnclosedConnections=true","jurka","");
	}

}