DB Connection using OS authenication

Question

Using Oracle 10g R2. and oracle.jdbc.driver.OracleDriver
It is possible to connect to Oracle using OS authenication, instead of DB authenication? The user has a UNIX account and belongs to the DBA group.
I'm trying to avoid hard coding the password in the Java source file since the password is different on dev, test and numerous production servers.

Answer 1

I found a solution. It doesn't use OS authenication, but it doesn't require passing in a username and pasword. I uses the default connection.
create or replace and compile java source named test as
import java.sql.*     ;
class Test
     public static void DBTest()
      Connection connection = null;
     try
        // Load the JDBC driver
        String driverName = "oracle.jdbc.driver.OracleDriver";
        Class.forName(driverName);
         // Create a connection to the database
         // USE DEFAULT CONNECTION
        String url = "jdbc:default:connection";
        connection = DriverManager.getConnection(url) ;
        connection.setAutoCommit(false) ;
        Statement sql = connection.createStatement() ;
        int rows = sql.executeUpdate("INSERT INTO testdata VALUES('hello world')") ;
         sql.close() ;
        connection.close() ;
     catch (ClassNotFoundException e)
         System.out.println("Could not find the database driver");
     catch (SQLException e)
           System.out.println(e.toString()) ;
show errors