Login against database table,need help

Question

hi all:
i need to develop a login page that authenticate users against a database table
i made a login page with no bindings a submit button which submit the form to a struts data action ,i defined a custom method at the vo implementation expose it to the client interface and drag and drop this method into the struts action this is the method code
public boolean findProjectOwnersByOwnerid (String Ownerid)
setWhereClauseParam(0,Ownerid);
executeQuery();
boolean found = (first() != null );
setWhereClause(null);
setWhereClauseParams(null);
setMaxFetchSize(0);
return found;
in the struts data action i override the data forword action this is the code:
protected void findForward(DataActionContext actionContext) throws Exception
// TODO: Override this oracle.adf.controller.struts.actions.DataAction method
super.findForward(actionContext);
String target="failed";
JUCtrlActionBinding method = actionContext.getCustomMethod();
String result = (String)method.getResult();
System.out.println(result);
if (result.equalsIgnoreCase("true"))
target = "failed";
if (result.equalsIgnoreCase("false"))
target = "success";
actionContext.setActionForward(target);
now when i run this page i get this error java.lang.NullPointerException
can anyone help please

Answer 1

Hi,
the nice thing with NullPointer exceptions is that it also tells you the source and line number where this occurs. It would be useful to follow up on this to see where the problem originates
Frank