(Java) Process Bounced Email in IMAP

Reads an IMAP mailbox and determines which emails are bounces.

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkImap imap = new CkImap();
    CkBounce bounce = new CkBounce();

    // Connect to an IMAP server.
    // Use TLS
    imap.put_Ssl(true);
    imap.put_Port(993);
    boolean success = imap.Connect("imap.someMailServer.com");
    if (success != true) {
        System.out.println(imap.lastErrorText());
        return;
        }

    // Login
    success = imap.Login("admin@chilkatsoft.com","myPassword");
    if (success != true) {
        System.out.println(imap.lastErrorText());
        return;
        }

    // Select an IMAP mailbox
    success = imap.SelectMailbox("INBOX.bounceSamples");
    if (success != true) {
        System.out.println(imap.lastErrorText());
        return;
        }

    CkMessageSet messageSet;
    // We can choose to fetch UIDs or sequence numbers.
    boolean fetchUids = true;
    // Get the message IDs of all the emails in the mailbox
    messageSet = imap.Search("ALL",fetchUids);
    if (imap.get_LastMethodSuccess() == false) {
        System.out.println(imap.lastErrorText());
        return;
        }

    // Fetch the emails into a bundle object:
    CkEmailBundle bundle;
    bundle = imap.FetchBundle(messageSet);
    if (imap.get_LastMethodSuccess() == false) {

        System.out.println(imap.lastErrorText());
        return;
        }

    // Loop over the bundle and display the FROM and SUBJECT of each.
    int i = 0;
    int numEmails = bundle.get_MessageCount();
    while (i < numEmails) {
        CkEmail email = bundle.GetEmail(i);

        success = bounce.ExamineEmail(email);

        System.out.println("Subject: " + email.subject());
        System.out.println("Bounce Type = " + bounce.get_BounceType() + ", email address = " + bounce.bounceAddress());

        i = i+1;
        }

    // Disconnect from the IMAP server.
    success = imap.Disconnect();
  }
}