Beginner Java WS code that used to work, doesn't work now... help?

Hi,

I'm not a skilled hand at Web Services, but a few months ago I had managed to use WS to create a new Customer in a demo account. Today I tried to run the exact same code, and it's not working.

I'm not getting any exceptions or anything meaningful. The code runs, then stops, but nothing happens. The only ouptut I get is a little message that says "- Unable to find required classes (javax.activation.DataHandler and javax.mail.internet.MimeMultipart). Attachment support is disabled." which seems pretty harmless.

Here is the code I'm using:

 public class MyFirstClass {      public MyFirstClass() {}      public static void main(String args[]) {    try {     NetSuiteServiceLocator service = new NetSuiteServiceLocator();     service.setMaintainSession(true);        NetSuitePortType port;     port = service.getNetSuitePort();       //set your login passport     RecordRef role = new RecordRef();     role.setInternalId( "3" ); //admin role     Passport passport = new Passport("***", "***", "TSTDRV*****", role);      StatusDetail[] statusDetail = port.login( passport ).getStatus();           //business logic     Customer cust = new Customer();     cust.setEntityId("TWS 1");     cust.setCompanyName("TWS 1");     WriteResponse response = port.add( cust );          /*     // Process the results     if(response.getStatus().isIsSuccess()) {      RecordRef ref = (RecordRef)(response.getBaseRef());      System.out.println("Successful. Record ID = " + ref.getInternalId());     } else {      for(int i = 0; i < response.getStatus().getStatusDetail().length;