public interface IInitializer
Initializer can be used for clustering. Lets say you access a page that has a link to a resource on node A now the url for the resource gets forwarded to node B, but node B doesn't have the resource registered yet because maybe the page class hasn't been loaded and so its static block hasn't run yet. So the initializer is a place for you to register all those resources and do all the stuff you used to do in the static blocks.
You don't have to pre-register
package resources, as they can be
Initializers can be configured via
ServiceLoader, i.e. by having a file
/META-INF/services/org.apache.wicket.IInitializer in the class path root, with each line containing the
full class name of an
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