How to connect ORACLE DB in virtual machine windows 7 with IntelliJ IDEA.I have jdbc7.jar in the libraries and I try that way. Shows me this error

`Class.forName("oracle.jdbc.driver.OracleDriver");
        String serverName = "000.000.000.000";
        String portNumber = "1521";
        String sid = "abcd";
        String url = "jdbc:oracle:thin:@" + serverName + ":" + portNumber + ":" + sid;
        String username = "user";
        String password = "pass";
        Connection conn = DriverManager.getConnection(url, username, password);Class.forName("oracle.jdbc.driver.OracleDriver");
        String serverName = "000.000.000.000";
        String portNumber = "1521";
        String sid = "abcd";
        String url = "jdbc:oracle:thin:@" + serverName + ":" + portNumber + ":" + sid;
        String username = "user";
        String password = "pass";
   Connection conn = DriverManager.getConnection(url, username, password);
`