(one for users and another one for framework developers) and an Apache JIRA (the issue tracking system). Moreover, as any other Apache project, Wicket is developed paying great attention to user feedbacks component, IVisit arg1) { if(!component.isStateless()) System.out.println("Component " + component.getId() + " is not stateless"); } }); @Override public void onClick() { //It will always print zero System.out.println(index++); } }); } } The printed value will always be zero because

(one for users and another one for framework developers) and an Apache JIRA (the issue tracking system). Moreover, as any other Apache project, Wicket is developed paying great attention to user feedback onInitialize(); visitChildren((component, visit) -> { if(!component.isStateless()) { System.out.println("Component " + component.getId() + " is not stateless"); } }); } Alternatively @Override public void onClick() { //It will always print zero System.out.println(index++); } }); } } The printed value will always be zero because

(one for users and another one for framework developers) and an Apache JIRA (the issue tracking system). Moreover, as any other Apache project, Wicket is developed paying great attention to user feedback onInitialize(); visitChildren((component, visit) -> { if(!component.isStateless()) { System.out.println("Component " + component.getId() + " is not stateless"); } }); } Alternatively @Override public void onClick() { //It will always print zero System.out.println(index++); } }); } } The printed value will always be zero because

(one for users and another one for framework developers) and an Apache JIRA (the issue tracking system). Moreover, as any other Apache project, Wicket is developed paying great attention to user feedback onInitialize(); visitChildren((component, visit) -> { if(!component.isStateless()) { System.out.println("Component " + component.getId() + " is not stateless"); } }); } Alternatively @Override public void onClick() { //It will always print zero System.out.println(index++); } }); } } The printed value will always be zero because

● In Wicket we can use page classpath to put any kind of resource, not just HTML (pictures, properties fle, etc...) Where is the HTML? ● A Wicket application is a standard Java EE web application ● CompoundPropertyModel is a particular kind of model which uses components ids to resolve properties on its model object. public class Person { private String name; private String surname; private CompoundPropertyModel ● This can save us a lot boilerplate code if we choose components ids according to properties name: Data model: Display data model: ● CompoundPropertyModel can drastically improve the code