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From Döring Markus <Markus.Doer...@tcc-products.de>
Subject NullPointer when using dynamic actionListener type
Date Mon, 25 Sep 2006 14:27:15 GMT
Hello,
i try to add <f:actionListener /> to <tr:commandButton /> within <tr:forEach>.
The type of the actionListener is dynamic, so I use an EL-Expression.
When trinidad adds the actionListener the following exception is thrown:



16:25:30,154 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
	at org.apache.myfaces.trinidad.component.UIXComponentBase.addFacesListener(UIXComponentBase.java:969)
	at org.apache.myfaces.trinidad.component.UIXCommand.addActionListener(UIXCommand.java:279)
	at org.apache.myfaces.taglib.core.ActionListenerTag.doStartTag(ActionListenerTag.java:83)




Here is some of my code:

Test.jspx:
<tr:forEach var="action" items="#{managedBean.actions}">
	<tr:commandButton text="#{action}">
		<f:actionListener type="#{managedBean.actionMap[action]}" />
	</tr:commandButton>
</tr:forEach>

managedBean:
public class ManagedBean {
	public List<String> getActions() {
		List<String> out = new ArrayList<String>();
		out.add("action1");
		out.add("action2");
		return out;
	}

	public Map<String, String> getActionMap() {
		Map<String, String> out = new HashMap<String, String>();
		out.put("action1", Action1.class.getName());
		out.put("action2", Action2,class.getName());
	}
}

When I use the code without the <f:actionListener> line everything works fine, the buttons
are rendered with the right text

So what's going wrong here? Or is it me doing something wrong?

Greetings
Markus

PS. I'm using Trinidad M1, MyFaces 1.1.4 and JBoss 4.0.3SP1 with Tomcat 5.5

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