ClassCastException in JSP

Question

This is driving me NUTS!!
          I set up a vector object in a servlet and use it to store some javabeans. I
          then store the Vector in the application object), forward to a JSP and
          iterate thru the Vector.
          In doing so I cast the elements to the bean class. I get a
          classcastException that does not make sense. When I do
          vector.elementAt(i).getClass().getName() it has the correct class name! So
          why can't I cast to it?
          This is a show stopper for me, please help.
          John.
          

Answer 1

Michael , we had the same problem.
          It came out to be due to the fact that we were putting the Beans for the
          Servlets (the Helper classes) in the servletclasses directory together with
          the servlets.
          In this way they will only be available to the servlets , but not to the
          JSPs,
          which use a different class loader..
          We solved all of this by putting thebean class in the JAVA_CLASSPATH
          and NOT in the servletclasses...
          Now everything works beautifully!
          Max
          MIchael Raisis <[email protected]> wrote in message
          news:[email protected]...
          > I am having a similar problem but only when I try and
          > pass an object from a servlet to a JSP using the request
          > object.
          >
          > If I use the session object everything is fine.
          >
          > I am using Servlet 2.2 Web applications.
          >
          > Any suggestions?
          >
          >
          > "Jas" <[email protected]> wrote in message
          > news:[email protected]...
          > > welcome to the club
          > >
          > > JOG wrote:
          > >
          > > > This is driving me NUTS!!
          > > > I set up a vector object in a servlet and use it to store some
          > javabeans. I
          > > > then store the Vector in the application object), forward to a JSP and
          > > > iterate thru the Vector.
          > > >
          > > > In doing so I cast the elements to the bean class. I get a
          > > > classcastException that does not make sense. When I do
          > > > vector.elementAt(i).getClass().getName() it has the correct class
          name!
          > So
          > > > why can't I cast to it?
          > > >
          > > > This is a show stopper for me, please help.
          > > > John.
          > >
          >
          >