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struts multibox: null pointer exception

The following code generates null pointer exception. please help.

/** RegisterForm.java***/
public class RegisterForm extends ActionForm {
protected String[] selectedItems = {};
protected String[] item = {"UPS", "FedEX", "Airborne"};
public String[] getSelectedItems() {
           return this.selectedItems;
}
public void setSelectedItems(String[] selectedItems) {
      this.selectedItems = selectedItems;
}
}
/*** register.jsp ****/
<html:form action="/register" >
<logic:iterate id="item" property="items" >
<html:multibox property="selectedItems">
           <bean:write name="item"/>
     </html:multibox>
     </logic:iterate>
<html:submit value="Register"/>
</html:form>

jpolin1

To start off I don't think your iterate tag is correct, you need to specify the form that you are using, in this case the RegisterForm, so it should be something like:

<logic:iterate id="item" name="registrationForm" property="items">

Could you also add the entire stack trace?

jeff1919

ASKER

This helps. but got another error generated: no getter and setter methods for the bean

jeff1919

ASKER

Venabili...thanks for moving my question..!

runa_paathak

That is because you don't have getters and setters for "items" property. Your property name is "selectedItems", so change it to

<logic:iterate id="item" name="registrationForm" property="selectedItems">

ASKER CERTIFIED SOLUTION

boonleng

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