I have a situation like this:

class myEx extends Exception {}

class MyEx1 extends MyEx {}

class A
{
    public void method1() throws MyEx1
    {
    }
}

class B extends GenericPortlet
{
    public void processAction(ActionRequest request, ActionResponse response) throws PortletException, PortletSecurityException, IOException
    {
        try {
            A a = new A();
            a.method1();
        }
        catch (MyEx1) {
        }
        catch (myEx) {
        }
        catch (Exception) {
        }
    }
}

why is it possible that when i throw an MyEx1 in A.method1 i can't catch it in my instance of B as MyEx1 or MyEx. I can only catch it as an Exception. I also try to cast it to MyEx1 but it didn't work.

I'm using JBoss and JBoss Portal