anchor.diff:  
  -In this chapter we will see a classic Hello World! example implemented using a Wicket page with a built-in component called _Label_ (the code is from project the HelloWorldExample). Since this is the first example of the guide, before looking at Java code we will go through the common artifacts needed to build a Wicket application from scratch.
  +In this chapter we will see a classic Hello World! example implemented using a Wicket page with a built-in component called _Label_ (the code is from the HelloWorldExample project). Since this is the first example of the guide, before looking at Java code we will go through the common artifacts needed to build a Wicket application from scratch.
   
   NOTE: All the example projects presented in this document have been generated using Maven and the utility page at  http://wicket.apache.org/start/quickstart.html[http://wicket.apache.org/start/quickstart.html] . *Appendix A* contains the instructions needed to use these projects and build a quickstart application using Apache Maven. All the artifacts used in the next example (files web.xml, HomePage.class and HomePage.html) are automatically generated by Maven.
   
  
positive.code: public abstract Class<? extends Page> getHomePage()
  ----
  
  As you may guess from its name, this method specifies which page to use as homepage for our application. 
  Another important method is _init()_:
  
  [source,java]
  
negative.code: protected void init()
  ----
  
  This method is called when our application is loaded by the web server (Tomcat, Jetty, etc...) and is the ideal place to put our configuration code. The _Application_ class exposes its settings grouping them into interfaces (you can find them in package _org.apache.wicket.settings_). We can access these interfaces through getter methods, which will be gradually introduced in the next chapters when covering related settings.
  
  The current application's instance can be retrieved at any time by calling static method _Application.get()_ in our code. We will give more details about this method in <<requestProcessing.adoc#_the_director_of_request_processing_requestcycle,chapter 9.3>>. The content of the application class from the HelloWorldExample project is the following:
  
  [source,java]
  ----
  