java.lang.String cannot be cast to javax.faces.model.SelectItem with s:selectItems

Question

<h:selectOneMenu id="reportType" style="width:175px" value="#{pageDemoSearchBean.status}">
    <f:selectItems value="#{pageDemoSearchBean.vehicleStatus}" />
</h:selectOneMenu>

I am using JSF 1.2

This lines of code throws a classCastException

java.lang.String cannot be cast to javax.faces.model.SelectItem

Provided that replacing "value" by "itemValue" in f:selectItems tag is giving another exception which tells that

itemValue is incorrect for selectItems according to TLD

When using JSF 1.x, look for JSF 1.x answers/examples/resources, not for JSF 2.x answers/examples/resources. — BalusC, Nov 18 '15 at 09:01
please show us the code where you import the lib in the jsp page — Si mo, Nov 18 '15 at 09:16
Please ignore above nosense comment of Si mo. There's no means of a JSP import here. — BalusC, Nov 18 '15 at 14:58
Your method `pageDemoSearchBean.vehicleStatus` should return `List` instead of `List` — Vasil Lukach, Nov 18 '15 at 21:50

score 2 · Answer 1 · edited May 23 '17 at 12:19

In JSF 1.x, it is not possible to provide a List<T> as <f:selectItems value>. It only supports List<javax.faces.model.SelectItem>.

Here's a kickoff example of proper usage, copypasted from our selectonemenu tag wiki page (which is written with JSF 2.x in mind, so take into account that some examples won't work for the jurassic JSF 1.x):

<h:form>
    <h:selectOneMenu value="#{bean.selectedItem}">
        <f:selectItem itemValue="#{null}" itemLabel="-- select one --" />
        <f:selectItems value="#{bean.availableItems}" />
    </h:selectOneMenu>
    <h:commandButton value="Submit" action="#{bean.submit}" />
</h:form>

private String selectedItem; // +getter +setter
private List<SelectItem> availableItems; // +getter (no setter necessary)

@PostConstruct
public void init() {
    availableItems = new ArrayList<SelectItem>();
    availableItems.add(new SelectItem("foo", "Foo label"));
    availableItems.add(new SelectItem("bar", "Bar label"));
    availableItems.add(new SelectItem("baz", "Baz label"));
}

java.lang.String cannot be cast to javax.faces.model.SelectItem with s:selectItems

1 Answers1