Ojdbc14.jar connect to 10g so slow with JRE1.5.0_05

Question

Our guests complained the speed is so slow that they can not stand up with this...
So I run the tests base on JRE1.5.0_05 and ojdbc14.jar and Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
try {
                    Class.forName("oracle.jdbc.driver.OracleDriver");
                    String url = "jdbc:oracle:thin:@//host:1521/orcl";
                    Date now = new Date();
                    Connection conn = DriverManager.getConnection(url, "user",
                              "password");
                    System.out.println(System.currentTimeMillis() - now.getTime());
                    conn.setAutoCommit(false);
                    Statement stmt = conn.createStatement();
                    ResultSet rset = stmt
                              .executeQuery("select BANNER from SYS.V_$VERSION");
                    while (rset.next()) {
                         System.out.println(rset.getString(1));
                    stmt.close();
                    System.out.println("Ok.");
               } catch (Exception ex) {
                    ex.printStackTrace();
The output is :
4875
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
CORE     10.2.0.1.0     Production
TNS for 32-bit Windows: Version 10.2.0.1.0 - Production
NLSRTL Version 10.2.0.1.0 - Production
Ok.
the statement Connection conn = DriverManager.getConnection(url, "user", "password") execution time is 4875 milliseconds!!!!!
so i switched to 9i the output is:
0
Oracle9i Enterprise Edition Release 9.2.0.1.0 - Production
PL/SQL Release 9.2.0.1.0 - Production
CORE     9.2.0.1.0     Production
TNS for 32-bit Windows: Version 9.2.0.1.0 - Production
NLSRTL Version 9.2.0.1.0 - Production
Ok.
I change the JDK version to 1.4 or 1.6 the execution time is also 0.
I walk through the internet and finally found the solution:
ProxySelector.setDefault(null);
But i am still confused when it come to the same environment the same code to connect to the 9i,10g, the getConnection() method execution time is so different without the statement ProxySelector.setDefault(null). so I suspect that this is an issue to 10g not the JDK1.5.x.
Edited by: user12084131 on 2010-9-20 上午1:46
Edited by: user12084131 on 2010-9-20 上午1:47

Answer 1

Thanks for the reply,
One correction to the above <Corrected now in my original post>
Its connecting to " com.bea:ServerRuntime=managed03,Name=managed03,Type=JRockitRuntime"
Tried with previous version again, it works perfect. But i still have issue with new JRE version.
Regards,
Rana
Edited by: user13387204 on 02-Oct-2010 19:01