🚀 go-pugleaf

It is kind of hard to draw diagram.
I hope these statements below will help,

public class SigninHandler extends StateHandlerSupport;

public class StateHandlerSupport implements java.io.Serializable, StateHandler;

public interface StateHandler;

These three classes are all in the same package.
Actually they are similar to sun's j2ee blue print
petstore demo application.

thanks!

ct

"Michael Rachow" <michael@famrachow.de> wrote:
>Could you please show us the class hierachy
>of SigninHandler and StateHandler
>(how they are related in class tree)?!
>Michael
>Object o = c1.newInstance();
>    System.out.println("StateMachine: o = " + (SigninHandler)o);
>    handler = (StateHandler)o;  // exception throws
>
>ct <cctang@yahoo.com> schrieb in im Newsbeitrag: 3b214690$1_1@dnews...
>>
>> I had a problem with the following codes, which are called
>> in ejb component in app server.
>> StateHandler is interface and SigninHandler implements it.
>> If I include the line with System.out.println(), it will run OK.
>> But if I comment out System.out.println(), a
>> ClassCastException error will be throwed in the next line
>> (handler = (StateHandler)o),
>>
>>     Class c1 = Class.forName(handlerName);
>>     Object o = c1.newInstance();
>>     System.out.println("StateMachine: o = " + (SigninHandler)o);
>>     handler = (StateHandler)o;  // exception throws
>>
>> I am running jbuild4.0 Enterprise version.  My OS is NT4.0
>> I had created an small test program to test these pieces of
>> codes and used the same classpath used by appserver.  It works
>> regardless the println statement.
>>
>> Any help is welcomed.
>>
>> thanks!
>>
>> ct
>
>