Java EE (Java Enterprise Edition) General Discussion

Hi All,

I am novice to struts programming.

I have written a program which takes a String variable as input and returns a ArrayList to populate a dropdown.

When i sumit the page first time it is working properly.But from second time onwards it is giving following Error.

exception

javax.servlet.ServletException: BeanUtils.populate
org.apache.struts.util.RequestUtils.populate(RequestUtils.java:495)
org.apache.struts.action.RequestProcessor.processPopulate(RequestProcessor.java:805)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:203)


root cause

java.lang.IllegalArgumentException: argument type mismatch
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:324)





My JSP Contains:

<html:select name = "lookupForm" property = "business" styleClass="smallarial">
<html:options name = "lookupForm" property = "businessNames" labelName = "lookupForm" labelProperty = "businessNames"/>
</html:select>

where lookupForm is form bean name
and businessname is the property name (which has getter and setter method in FORM )

Getter and Setter Methods are :


public void setBusinessNames(ArrayList BusinessName) {
this.businessnames = BusinessName;
}

public ArrayList getBusinessNames() {
return(businessnames);
}

I am populating businessNames ArrayList in my action class and calling the Setter method as below :


LookupForm lookupForm = (LookupForm)form;
lookupForm.setBusinessNames(BusinessNames);

forgive me for poor terminology...

Please can any one help??

Thanks in anticipation..


Regards,
Srini