[Rampart] WSHandler: cannot create instance of password callback

[prashantp]

Hi,
      I am a new bie to axis2 and rampart. I am using tomcat and axis2-1.2.
I am trying to secure a web service using username token
 
My service is as follows:
 
public class MyHello {
    public String sayHello(String s){
        return "HELLO"+" "+s;
    } }
 
CallbackHandler is as follows :
 
public class PwdCallBackHandler implements CallbackHandler{
        public void handle(Callback[] callbacks) throws
IOException,UnsupportedCallbackException {
                for (int i = 0; i < callbacks.length; i++) {
                         WSPasswordCallback pwcb =
(WSPasswordCallback)callbacks[i];
                                  String id = pwcb.getIdentifer();
                                           if("myname".equals(id)) {
 
pwcb.setPassword("password");
                                                                 } } }
 
service.xml looks as follows:
 
<service name="MyHello" >
 <description>
  Sample Web Service for Username Token
 </description>
 <operation name="sayHello">
  <messageReceiver
class="org.apache.axis2.rpc.receivers.RPCMessageReceiver"/>
 </operation>
 <parameter name="ServiceClass" locked="false">testpack.MyHello</parameter>
 <module ref="rampart" />
 <parameter name="InflowSecurity">
      <action>
        <items>UsernameToken Timestamp</items>
 
<passwordCallbackClass>testpack.PwdCallBackHandler</passwordCallbackClass>
  <passwordType>passwordDigest</passwordType>
      </action>
    </parameter>
</service>

I also created client.axis2.xml similar to given in samples where i changed
the existing values to:

<module ref="rampart" />
  <parameter name="OutflowSecurity">
     <action>
         <items>UsernameToken Timestamp</items>
         <user>myname</user>
 
<passwordCallbackClass>testpack.PwdCallBackHandler</passwordCallbackClass>
       </action>
    </parameter>

I created stubs for my service. my Client is as follows:

public class MyHelloClient{
 public static void main(String[] args) {
  try{
        MyHelloMyHelloSOAP11PortStub stub = new
MyHelloMyHelloSOAP11PortStub("
<http://localhost:8080/axis2/services/MyHello>
http://localhost:8080/axis2/services/MyHello";);
       MyHelloMyHelloSOAP11PortStub.SayHello sayHello = new
MyHelloMyHelloSOAP11PortStub.SayHello();
       sayHello.setS("bob");
       MyHelloMyHelloSOAP11PortStub.SayHelloResponse resp =
stub.sayHello(sayHello);
       System.out.println("Response from Web Service
-->"+resp.get_return());
}catch(Exception ex){
    ex.printStackTrace();
   }}


I get the following exception when i run the client :

org.apache.axis2.AxisFault: WSHandler: cannot create instance of password
callback: testpack.PwdCallBackHandler; nested exception is: 

java.lang.ClassCastException: testpack.PwdCallBackHandler

at
org.apache.axis2.util.Utils.getInboundFaultFromMessageContext(Utils.java:434
)

at
org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperatio
n.java:373)

at
org.apache.axis2.description.OutInAxisOperationClient.execute(OutInAxisOpera
tion.java:294)

at
testpack.MyHelloMyHelloSOAP11PortStub.sayHello(MyHelloMyHelloSOAP11PortStub.
java:151)

at testpack.MyHelloClient.main(MyHelloClient.java:28)
 
 
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