SyBase connection problems

Question

I'm t rying to connect to a SyBase database with the code below. I get three results with equal distribution:
1) It gets through and makes the connection - I'm golden
2) I get:
Exception: JZ006: Caught IOException: java.net.SocketException: Connection aborted by peer: socket write error
3) I get:
Exception: JZ0C0: Connection is already closed.
Anybody using SyBase with JDBC seen this before?
     private Connection connectToSyBase( String username, String password, String ipAddress, int port )
                         throws SQLException
          Connection con = null;                    // For return
          String url = null;
          try {
               // Load and register the Sybase driver, if not already done
               loadSyBaseDrivers();
               // Establish a connection
               //          "jdbc:sybase" => identifies the driver
               //          "Tds" => the Sybase communication protocol for Adaptive Server
               //          "host:port/database" => the Adaptive Server hostname and listening port
               url = "jdbc:sybase:Tds:" + ipAddress + ":" + port;
               System.out.println( "ConnectionFactory.connectToSyBase: getConnection" );
               con = DriverManager.getConnection( url, username, password );
               System.out.println( "ConnectionFactory.connectToSyBase: success!" );
          } catch( Exception e ) {
               String msg = "Exception: " + e.getMessage();
               System.out.println( "ConnectionFactory.connectToSyBase: " + msg );
               throw new SQLException( msg );
          // We're golden - return the Connection
          return con;
      *     Load SyBase drivers
     private void loadSyBaseDrivers()
                         throws SQLException
          if( _sybDriver == null ) {
               try {
                    System.out.println( "ConnectionFactory.loadSyBaseDrivers: load SybDriver" );
                    _sybDriver = (SybDriver)Class.forName("com.sybase.jdbc2.jdbc.SybDriver").newInstance();
                    System.out.println( "ConnectionFactory.loadSyBaseDrivers: set VERSION" );
                    _sybDriver.setVersion( com.sybase.jdbcx.SybDriver.VERSION_5 );
                    System.out.println( "ConnectionFactory.loadSyBaseDrivers: registerDriver" );
                    DriverManager.registerDriver( _sybDriver );
               } catch( InstantiationException ie ) {
                    // All exceptions get rethrown as SQLException
                    String msg = "InstantiationException: " + ie.getMessage();
                    System.out.println( "ConnectionFactory.loadSyBaseDrivers: " + msg );
                    throw new SQLException( msg );
               } catch( ClassNotFoundException cnfe ) {
                    String msg = "ClassNotFoundException: " + cnfe.getMessage();
                    System.out.println( "ConnectionFactory.loadSyBaseDrivers: " + msg );
                    throw new SQLException( msg );
               } catch( SQLException e ) {
                    String msg = "SQLException: " + e.getMessage();
                    System.out.println( "ConnConnectionFactory.loadSyBaseDriversectionFactory: " + msg );
                    throw new SQLException( msg );
               } catch( Exception e ) {
                    String msg = "Exception: " + e.getMessage();
                    System.out.println( "ConnectionFactory.loadSyBaseDrivers: " + msg );
                    throw new SQLException( msg );

Answer 1

I am getting following exception while i try to connect to sybase (SQL Anywhere 10)
java.sql.SQLException: JZ006: Caught IOException: java.net.ConnectException: Con
nection refused: connect
at com.sybase.jdbc3.jdbc.ErrorMessage.raiseError(Unknown Source)
at com.sybase.jdbc3.jdbc.ErrorMessage.raiseErrorCheckDead(Unknown Source
at com.sybase.jdbc3.tds.Tds.a(Unknown Source)
at com.sybase.jdbc3.tds.Tds.a(Unknown Source)
at com.sybase.jdbc3.tds.Tds.login(Unknown Source)
at com.sybase.jdbc3.jdbc.SybConnection.a(Unknown Source)
at com.sybase.jdbc3.jdbc.SybConnection.a(Unknown Source)
at com.sybase.jdbc3.jdbc.SybConnection.<init>(Unknown Source)
at com.sybase.jdbc3.jdbc.SybConnection.<init>(Unknown Source)
at com.sybase.jdbc3.jdbc.SybDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at SpringTest.displayData(SpringTest.java:33)
at SpringTest.main(SpringTest.java:95)
Following code I am using.
SybDriver sybDriver = (SybDriver) Class.forName("com.sybase.jdbc3.jdbc.SybDriver").newInstance();
DriverManager.registerDriver(sybDriver);
con = DriverManager.getConnection("jdbc:sybase:Tds:199.82.249.27:2638/TITAN-PFR", "titanpfr", "titanpfr1");
Can anyone help me why i am getting that error?