You are viewing a plain text version of this content. The canonical link for it is here.
Posted to users@tomcat.apache.org by Christophe Andreoli <an...@gsf.de> on 2003/05/02 10:45:57 UTC
java.lang.ClassCastException problem when updating to tomcat 4.1
there was no problem with tomcat 4.0 but with updating to 4.1 , I get
the following problem:
I instantiate in my action class a role bean and save it to the session
with the following code:
RoleBean role = new RoleBean();
request.getSession().setAttribute("roleBean", role);
But then in the jsp pages using the role bean, as:
<jsp:useBean id="roleBean" scope="session"
class="com.ihg.mitop.gui.RoleBean"/>
<% if (((RoleBean)roleBean).getHolgerUser() == 1 ){ %> etc .....
I get the following exception:
java.lang.ClassCastException: com.ihg.mitop.gui.RoleBean
??
Can you help ?
thank you
Re: java.lang.ClassCastException problem when updating to tomcat
4.1
Posted by Tarun Ramakrishna Elankath <ta...@webkadai.com>.
Try cleaning the classes directory (or your expanded WAR) and
re-compiling again.
On Fri, 2003-05-02 at 14:45, Christophe Andreoli wrote:
> Hi Rosdi,
>
> I have to initialize my Bean in a Struts action class.
>
> But anyway it is not the problem and it worked with tomcat 4.0
>
>
>
>
>
>
>
> Rosdi bin Kasim wrote:
> >
> > I am not very clear about what you intend to do.
> > Why did you save your bean that way?.. Why didn't you initialize your bean
> > in JSP like this..
> >
> > -- JSP 1 --
> >
> > <jsp:useBean id="roleBean" scope="session"
> > class="com.ihg.mitop.gui.RoleBean"/>
> >
> > <%
> > // set whatever attribute you want to set in the bean
> > roleBean.setHolgerUser(1);
> > roleBean.setXXX(yyy);
> >
> > %>
> >
> > Then read the bean from another JSP...
> >
> > -- JSP 2 --
> >
> > <jsp:useBean id="roleBean" scope="session"
> > class="com.ihg.mitop.gui.RoleBean"/>
> >
> > <%
> >
> > // get whatever attribute you want to get...
> > if (roleBean.getHolgerUser() == 1 ) {
> > //do something..
> > }
> >
> > %>
> >
> > Regards,
> > Rosdi.
> >
> > ----- Original Message -----
> > From: "Christophe Andreoli" <an...@gsf.de>
> > To: <to...@jakarta.apache.org>
> > Sent: Friday, May 02, 2003 4:45 PM
> > Subject: java.lang.ClassCastException problem when updating to tomcat 4.1
> >
> > > there was no problem with tomcat 4.0 but with updating to 4.1 , I get
> > > the following problem:
> > >
> > >
> > > I instantiate in my action class a role bean and save it to the session
> > > with the following code:
> > >
> > > RoleBean role = new RoleBean();
> > > request.getSession().setAttribute("roleBean", role);
> > >
> > >
> > > But then in the jsp pages using the role bean, as:
> > >
> > > <jsp:useBean id="roleBean" scope="session"
> > > class="com.ihg.mitop.gui.RoleBean"/>
> > >
> > > <% if (((RoleBean)roleBean).getHolgerUser() == 1 ){ %> etc .....
> > >
> > >
> > >
> > > I get the following exception:
> > >
> > > java.lang.ClassCastException: com.ihg.mitop.gui.RoleBean
> > >
> > > ??
> > >
> > >
> > > Can you help ?
> > >
> > >
> > > thank you
> > >
> >
> > ----------------------------------------------------------------------------
> > ----
> >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
> > > For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
> > For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
>
> ______________________________________________________________________
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
Re: java.lang.ClassCastException problem when updating to tomcat 4.1
Posted by Christophe Andreoli <an...@gsf.de>.
Hi Rosdi,
I have to initialize my Bean in a Struts action class.
But anyway it is not the problem and it worked with tomcat 4.0
Rosdi bin Kasim wrote:
>
> I am not very clear about what you intend to do.
> Why did you save your bean that way?.. Why didn't you initialize your bean
> in JSP like this..
>
> -- JSP 1 --
>
> <jsp:useBean id="roleBean" scope="session"
> class="com.ihg.mitop.gui.RoleBean"/>
>
> <%
> // set whatever attribute you want to set in the bean
> roleBean.setHolgerUser(1);
> roleBean.setXXX(yyy);
>
> %>
>
> Then read the bean from another JSP...
>
> -- JSP 2 --
>
> <jsp:useBean id="roleBean" scope="session"
> class="com.ihg.mitop.gui.RoleBean"/>
>
> <%
>
> // get whatever attribute you want to get...
> if (roleBean.getHolgerUser() == 1 ) {
> //do something..
> }
>
> %>
>
> Regards,
> Rosdi.
>
> ----- Original Message -----
> From: "Christophe Andreoli" <an...@gsf.de>
> To: <to...@jakarta.apache.org>
> Sent: Friday, May 02, 2003 4:45 PM
> Subject: java.lang.ClassCastException problem when updating to tomcat 4.1
>
> > there was no problem with tomcat 4.0 but with updating to 4.1 , I get
> > the following problem:
> >
> >
> > I instantiate in my action class a role bean and save it to the session
> > with the following code:
> >
> > RoleBean role = new RoleBean();
> > request.getSession().setAttribute("roleBean", role);
> >
> >
> > But then in the jsp pages using the role bean, as:
> >
> > <jsp:useBean id="roleBean" scope="session"
> > class="com.ihg.mitop.gui.RoleBean"/>
> >
> > <% if (((RoleBean)roleBean).getHolgerUser() == 1 ){ %> etc .....
> >
> >
> >
> > I get the following exception:
> >
> > java.lang.ClassCastException: com.ihg.mitop.gui.RoleBean
> >
> > ??
> >
> >
> > Can you help ?
> >
> >
> > thank you
> >
>
> ----------------------------------------------------------------------------
> ----
>
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
> > For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
Re: java.lang.ClassCastException problem when updating to tomcat 4.1
Posted by Rosdi bin Kasim <ro...@epantai.com.my>.
I am not very clear about what you intend to do.
Why did you save your bean that way?.. Why didn't you initialize your bean
in JSP like this..
-- JSP 1 --
<jsp:useBean id="roleBean" scope="session"
class="com.ihg.mitop.gui.RoleBean"/>
<%
// set whatever attribute you want to set in the bean
roleBean.setHolgerUser(1);
roleBean.setXXX(yyy);
%>
Then read the bean from another JSP...
-- JSP 2 --
<jsp:useBean id="roleBean" scope="session"
class="com.ihg.mitop.gui.RoleBean"/>
<%
// get whatever attribute you want to get...
if (roleBean.getHolgerUser() == 1 ) {
//do something..
}
%>
Regards,
Rosdi.
----- Original Message -----
From: "Christophe Andreoli" <an...@gsf.de>
To: <to...@jakarta.apache.org>
Sent: Friday, May 02, 2003 4:45 PM
Subject: java.lang.ClassCastException problem when updating to tomcat 4.1
> there was no problem with tomcat 4.0 but with updating to 4.1 , I get
> the following problem:
>
>
> I instantiate in my action class a role bean and save it to the session
> with the following code:
>
> RoleBean role = new RoleBean();
> request.getSession().setAttribute("roleBean", role);
>
>
> But then in the jsp pages using the role bean, as:
>
> <jsp:useBean id="roleBean" scope="session"
> class="com.ihg.mitop.gui.RoleBean"/>
>
> <% if (((RoleBean)roleBean).getHolgerUser() == 1 ){ %> etc .....
>
>
>
> I get the following exception:
>
> java.lang.ClassCastException: com.ihg.mitop.gui.RoleBean
>
> ??
>
>
> Can you help ?
>
>
> thank you
>
----------------------------------------------------------------------------
----
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tomcat-user-help@jakarta.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: tomcat-user-help@jakarta.apache.org