Java Core GUI APIs: clickatell sms

Hello friends,

I have to send sms through my application.I am using clickatell.

I find the code as--

// Send SMS with clickatell

SmsSender smsSender = SmsSender.getClickatellSender("username", "password", "apiid");

// The message that you want to send.

String msg = "A sample SMS.";

// International number to reciever without leading "+"

String reciever = "461234";

// Number of sender (not supported on all transports)

String sender = "461235";

smsSender.connect();

String msgids[] = smsSender.sendTextSms(msg, reciever, sender);

smsSender.disconnect();

I add the smsj-20051126.jar But still getting error as--

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactoryat org.marre.sms.transport.clickatell.ClickatellTransport.<clinit>(ClickatellTransport.java:85)

at java.lang.Class.forName0(Native Method)

at java.lang.Class.forName(Class.java:164)