Wicket - Stale Page Exception - how to debug?

Question

It seems to me that the application works correctly, but in the console it throws a lot of StalePageExceptions. I do not know why. How can I debug the cause of these exceptions? What are the common reasons for this exception?

13:32:29,361 WARN  [RequestCycleExtra] (default task-60) ********************************
13:32:29,362 WARN  [RequestCycleExtra] (default task-60) Handling the following exception: org.apache.wicket.core.request.mapper.StalePageException

13:32:29,363 WARN  [RequestCycleExtra] (default task-60) ********************************
13:32:35,626 WARN  [RequestCycleExtra] (default task-64) ********************************
13:32:35,627 WARN  [RequestCycleExtra] (default task-64) Handling the following exception: org.apache.wicket.core.request.mapper.StalePageException

I use the latest version of Wicket - 6.18, but I have it forever.

EDIT:

StatementGokListPanel.java

  columns.add(new StatementLinkColumn(Model.of("")) {
     @Override
     public void onClick(IModel<StatementGokCommunity> model, AjaxRequestTarget target) {
        ComponentMode componentMode = ComponentMode.EDIT;
        MarkupContainer mc = StatementGokListPanel.this.getParent();
        GokCommunityStatementPanel panel = new GokCommunityStatementPanel("panel", model.getObject(), componentMode, true);
        StatementGokListPanel.this.replaceWith(panel);
        target.add(mc);
     }
  });

Answer 1

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