I have an application where the Swing UI client communicates to a servlet using serialized object IO. My problem is I want to propagate custom exceptions to the UI. I have created a super class extending Throwable and all my custom exceptions subclass it. Whenever I wanted to throw an exception, it tried wrapping it inside the ServletException/IOException.
On the client side I never get the ServletException but only the IOException. From the IOException the call to getCause returns null. Surprisingly I can see my custom exception on the server side stack trace.
What am I doing wrong?
PS. As a workaround I started writing my custom exception to the output stream and the code is working now. But I am sure this is not the correct solution. [ July 15, 2008: Message edited by: Maneesh Godbole ]