Exception in thread "main" java.sql.SQLException: Socket read timed out

By: tapan6*** On: Fri Oct 05 18:52:04 IST 2012     0 0 0	0
// SelectTest.java import java.sql.*; public class SelectTest { public static void main(String args[]) throws Exception { Class.forName("oracle.jdbc.driver.OracleDriver"); Connection con = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl","scott","tiger"); if (con == null) { System.out.println("Con not established.."); } else System.out.println("Conn established..."); } } Exception e:\JavaPrgms\JDBC>javac SelectTest.java e:\JavaPrgms\JDBC>java SelectTest SelectTest main(-) Driver class loaded Exception in thread "main" java.sql.SQLException: Socket read timed out at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:412) at oracle.jdbc.driver.PhysicalConnection.<init>(PhysicalConnection.java: 531) at oracle.jdbc.driver.T4CConnection.<init>(T4CConnection.java:221) at oracle.jdbc.driver.T4CDriverExtension.getConnection(T4CDriverExtensio n.java:32) at oracle.jdbc.driver.OracleDriver.connect(OracleDriver.java:503) at java.sql.DriverManager.getConnection(DriverManager.java:582) at java.sql.DriverManager.getConnection(DriverManager.java:185) at SelectTest.main(SelectTest.java:13) Caused by: oracle.net.ns.NetException: Socket read timed out at oracle.net.ns.Packet.receive(Packet.java:320) at oracle.net.ns.NSProtocol.connect(NSProtocol.java:286) at oracle.jdbc.driver.T4CConnection.connect(T4CConnection.java:1042) at oracle.jdbc.driver.T4CConnection.logon(T4CConnection.java:301) ... 7 more e:\JavaPrgms\JDBC> So , Here i am using Windows7 64bit , Oracle 11g Releases 2 64bit version, I tried same example with MySql database its working properly but here the socket is continuously reading and timeout exception is rised after 5 mins.. so how can i remove this exception ,? i checked my port no in tnslistener.ora its "1521" and my sid is :"orcl" where the problem is ?	0