Extended Controller's super.processRequest() results in ClassCast EXception

Question

The problem is that I extended a controller class, the extension contains nothing but this:
public void processRequest(OAPageContext oapagecontext, OAWebBean oawebbean)
line 13: super.processRequest(oapagecontext, oawebbean);
And this generates:
## Detail 0 ##
java.lang.ClassCastException
     at oracle.apps.icx.por.req.webui.CheckoutSummaryCO.prepareTrainAndNavigation(CheckoutSummaryCO.java:345)
     at oracle.apps.icx.por.req.webui.CheckoutSummaryCO.prepareUI(CheckoutSummaryCO.java:250)
     at oracle.apps.icx.por.req.webui.CheckoutSummaryCO.processRequest(CheckoutSummaryCO.java:105)
     at oracle.apps.icx.por.req.webui.XXCheckoutSummaryCO.processRequest(XXCheckoutSummaryCO.java:13)
and this is how prepareTrainAndNavigation() in the original controller looks like:
protected void prepareTrainAndNavigation(OAPageContext oapagecontext, OAWebBean oawebbean)
OAPageLayoutBean oapagelayoutbean = (OAPageLayoutBean)oawebbean;
OANavigationBarBean oanavigationbarbean = (OANavigationBarBean)createWebBean(oapagecontext, "NAVIGATION_BAR", null, "CheckoutNavigationBar");
oanavigationbarbean.setValue(1);
oanavigationbarbean.setMinValue(1);
oanavigationbarbean.setMaxValue(3);
oanavigationbarbean.setFormSubmitted(true);
OAPageButtonBarBean oapagebuttonbarbean = (OAPageButtonBarBean)oapagelayoutbean.getPageButtons();
oapagebuttonbarbean.addIndexedChild(oanavigationbarbean);
Any ideas?
Message was edited by:
user538045

Answer 1

Well, to debug the issue, you need to do that. Better have a local jdev setup working and do the debugging. Meanwhile also analyze the overall logic and process flow to make sure that your extension is not disturbing the overall logic.
--Shiv