When I develop my components I drop example output so that if the HTML file is open by itself once can get a preview of a mock-up of how the app might look like. Usefull for when the component is to be styled and etc.
I just noticed that at runtime in development mode the HTML validation fails when you use HTML tags like strings for mock-ups such as: <a href="#" wicket:id="url"> <wicket:remove>[http:// <host>:<port>/troubleshooting.clients?id=###]</wicket:remove></a> Unexpected RuntimeException Last cause: Tag '<port>' (line 14, column 79) has a mismatched close tag at '</wicket:remove>' (line 14, column 117) Markup The problem is in " file:/C:/MsSQL/glassfish/glassfish/domains/knoa/generated/jsp/console-war-7.1.21-SNAPSHOT/loader_10085307/com/mycom/console/admin/clients/troubleshooting/ExtractAgentLogsPanel$SuccessPanel.html":