Interceptor and Exceptions

[Pedro Erencia]

Anyone knows if a situation like this is considered on the specs ?

Enterprise Bean

  package com.micasa;
 
import javax.ejb.Stateless;
import javax.interceptor.Interceptors;
 
@Stateless
@Interceptors({MyInterceptor.class})
public class MyBean implements MyBeanRemote {
 
    public void methodA() throws MyException {
        System.out.println("methodA");        
        
    }
 
    public void methodB() throws MyException2 {
        System.out.println("methodB");
        
    }
 
    
}
  

Remote interface

 
package com.micasa;
 
import javax.ejb.Remote;
 
@Remote
public interface MyBeanRemote {
 
    void methodA() throws MyException;
    void methodB() throws MyException2;
}
 

Exceptions

package com.micasa;
 
public class MyException extends Exception {
 
    
}
 
&&
 
package com.micasa;
 
public class MyException2 extends Exception {
 
    
}

Interceptor

 
package com.micasa;
import javax.interceptor.AroundInvoke;
import javax.interceptor.InvocationContext;
 

public class MyInterceptor {
 
    @AroundInvoke
    public Object method(InvocationContext ic) throws Exception {
        System.out.println(this.getClass());
        throw new MyException();
        
    }
}
 

Client

 
public class ClientInterceptors {    
 
    
    public static void main(String[] args) {
        Context context = getInitialContext();        
        MyBeanRemote remote = null;
        try {
            Object ref = context.lookup("MyBean/remote");
            remote = (MyBeanRemote) PortableRemoteObject.narrow(ref,
                    MyBeanRemote.class);
            
        } catch (NamingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
            try {
                remote.methodA();
            } catch (MyException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            
            try {
                remote.methodB();
            } catch (MyException2 e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
             
    }
 

This is what i get in JBoss

 
Exception in thread "main" java.lang.reflect.UndeclaredThrowableException
at $Proxy0.methodB(Unknown Source)
at ClientInterceptors.main(ClientInterceptors.java:40)
Caused by: com.micasa.MyException
at com.micasa.MyInterceptor.method(MyInterceptor.java:11)

[Benoît de Chateauvieux]

Hi Pedro,

Yes, you'll find it in the chapter 12.3.2 Exceptions:

Business method interceptor methods may throw runtime exceptions or application exceptions that are allowed in the throws clause of the business method.

Hope it helps,

Beno�t

[Pedro Erencia]

Thanks Beno�t !!