Java – how to correctly delete ajaxselfupdatingtimerbehavior from components in Apache wicket?

• Java

I had trouble adding and removing ajaxselfupdating timerbehavior in Apache wicket The behavior is added, but once I delete the behavior, I will soon appear "page expired" in the browser. I think it is because the deletion is not clean My setup is basically a tag, which starts to change through a timer, and there are two links: "go" and "stop" I want to be able to click "go" and "stop" (obviously I know it will never work the opposite way!) This is my complete tag:

<html>    
    <body>            
        <span wicket:id="message">message will be here</span><br/>
        <a wicket:id="go">Go</a><br/>        
        <a wicket:id="stop">Stop</a>        
    </body>
</html>

This is my code:

// imports all from standard wicket
public class HomePage extends WebPage {

    private static final int INTERVAL = 500;

    public HomePage(final PageParameters parameters) {

        final Component label = new Label("message","Hello").setOutputMarkupId(true);

        add(label);

        final IBehavior updater = new AjaxSelfUpdatingTimerBehavior(Duration
            .milliseconds(INTERVAL)) {
            @Override
            protected void onPostProcessTarget(AjaxRequestTarget target) {                    
                label.setDefaultModelObject(String.valueOf(System.nanoTime()));             
            }
        };

        AjaxLink<String> go = new AjaxLink<String>("go") {
            @Override
            public void onClick(AjaxRequestTarget target) {
                label.add(updater);                             
                target.addComponent(label);
            }           
        };

        AjaxLink<String> stop = new AjaxLink<String>("stop") {
            @Override
            public void onClick(AjaxRequestTarget target) {
                label.remove(updater);
                target.addComponent(label);
            }           
        };

        add(go,stop);
    }
}

I'm using wicket 1.4 three

Any help would be appreciated thank you.

Solution

I solved this problem by using the stop () method instead of trying to completely delete the behavior

I really want to completely delete it at some point after stopping it (because my solution involves creating a new behavior every time I click "go", I want to continue to stop and start without generating a million behaviors), so I get to maintain a list of behaviors that go back and forth later

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