This should work. Did you declare businessMethod as throwing CommonException in the bean implementation and the remote interface? --Victor Langelo Pratap Das wrote: > Hi, > I have a question regarding exceptions raised from within an EJB. > > Context: > I want to raise application exceptions from within my session bean. > These will be caught by the > client (a servlet or a java application) and an appropriate error > message will be displayed to user. For instance, I want to throw a > ValidationException in response to an input parameter. > > What I did: > So I declared my RemoteInterface as throwing both RemoteException & > CommonException. > ValidationException is a subclass of CommonException which in turn is a > subclass of java.lang.Exception. > Hence they are all serializable. > That is, > java.lang.Exception > | > +--mypackage.CommonException > | > +--mypackage.ValidationException > > and > public businessMethod(serializable input) > throws RemoteException, CommonException; > > Problem: > When I throw my ValidationException from the session bean, it travels > back to the client where I get the following: > > java.rmi.UnexpectedException: Undeclared checked exception; > > Now, I've checked that the Exception classes etc are on the classpath & > it is not a > ClassNotFoundException either. I read somewhere (don't remember where > :-()that if I have multiple business > exceptions, I can declare my business method to throw just the > superclass. > > i.e instead of having my method declared as > public businessMethod(serializable input) > throws RemoteException, ValidationException, InvalidInputException, etc > etc... > > just have > throws CommonException; > > Is there a problem with this approach? > > Can anyone help me with this UnexpectedException problem? > Some other things I tried: > 1) I declared my remote interface to throw the actual exception > subclass - still got the same problem. > 2) I declared my remote interface to throw java.lang.Exception - got > the same problem : but this time > I also got the error message string that I was setting on my bean. > > Thanks in advance. > --Das > > =========================================================================== > To unsubscribe, send email to [EMAIL PROTECTED] and include in the body > of the message "signoff EJB-INTEREST". For general help, send email to > [EMAIL PROTECTED] and include in the body of the message "help". =========================================================================== To unsubscribe, send email to [EMAIL PROTECTED] and include in the body of the message "signoff EJB-INTEREST". For general help, send email to [EMAIL PROTECTED] and include in the body of the message "help".
