John,
I found another problem in the JSP Service, in the JspLayout.class
(doBuild, please see below).
The problem:
data.getOut() is called, for no obvious reason. With Tomcat this is ok,
however Websphere's servlet engine doesn't allow to retrieve the output
stream more than once per request. If you call getOut() in JSPLayout,
you'll get an exception when you try "dispatcher.forward" later on
(dispatcher.include works fine). I think this servlet engine behavior is
ok: as far as I know, it is for example forbidden to generate output in a
JSP Page and then forward the request to another JSP - once you generated
output, you may only _include_ other JSPs.
Anyway, your code doesn't break on tomcat if you remove the data.getOut()
statement, but it is a necessity to remove for WAS. Can you commit this change?
Thanks,
ingo.
public class JspLayout extends Layout
{
/**
* Method called by LayoutLoader.
*
* @param RunData
* @return processed template in a String
*/
public void doBuild(RunData data) throws Exception
{
data.getResponse().setContentType("text/html");
- data.getOut();
// variable to reference the screen in the layout template
data.getRequest()
.setAttribute("screen_placeholder",
new JspScreenPlaceholder(data));
// variable to reference the navigations in the layout template
data.getRequest()
.setAttribute("navigation", new JspNavigation(data));
// Grab the layout template set in the TemplatePage.
String templateName = data.getTemplateInfo().getLayoutTemplate();
// Finally, generate the layout template and output to the response
JspService jsp = (JspService)TurbineServices.getInstance()
.getService(JspService.SERVICE_NAME);
jsp.handleRequest(data, "/layouts" + templateName, true);
}
}
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